Sata Adapter 3.5

TerraMaster D6-320 6-Bay DAS EnclosureThe TerraMaster D6-320 is an external DAS enclosure designed to support up to six 3.5" SATA HDDs, 2.5" HDDs, and 2.5" SSDs. The device uses a USB 3.2 Gen 2 Type-C interface with a bandwidth of up to 10 Gb/s, ensuring fast data transfer and convenient storage expansion. The maximum supported capacity is as high as 132 TB, allowing you to create an extensive archive of files, backups, or multimedia content. The D6-320 supports Hot Swap, intelligent disk sleep mode, and is compatible with Windows, macOS, and Linux. Thanks to its sturdy metal construction and efficient cooling, it’s ideal for both home and office environments.Ample storage space and flexible configurationThe enclosure features six independent bays that support SATA drives in the most popular formats. The maximum capacity of a single drive is 22 TB, allowing for up to 132 TB of total storage space. This ample storage capacity is ideal for storing movies, photos, graphic design projects, video files, and backups. The D6-320 operates in single-drive mode (SINGLE DISK/JBOD), so each drive is visible separately and can be managed independently.Hot Swap and Convenient Drive ManagementThe Hot Swap feature allows you to replace or install drives without having to power down the device. This minimizes downtime and streamlines data management during daily operations. This feature is particularly useful for users who frequently back up data or use multiple removable storage devices. Thanks to the independent management of each drive, you can easily expand storage capacity as your needs grow.Intelligent Energy Saving and Hardware ProtectionThe TerraMaster D6-320 supports an automatic disk sleep function that synchronizes with the computer’s operating system. This reduces energy consumption and shortens the operating time of the storage media, which can positively impact their lifespan. The manufacturer has also included protection against improper power supply. If an unsuitable power source is detected, the device automatically activates protective mechanisms to safeguard the electronics and installed drives.Effective cooling and robust constructionThe enclosure is made of metal, which increases its durability and aids in heat dissipation. Inside, there are two 80 mm fans controlled by an intelligent temperature control system that automatically adjusts their speed to operating conditions. Additionally, the optimized design reduces vibrations and improves airflow inside the device. As a result, the D6-320 maintains optimal operating conditions for the drives even under heavy load, while keeping noise levels low.Wide compatibility and NAS expandabilityThe D6-320 is compatible with computers equipped with USB 3.0, USB 3.1, USB 3.2, Thunderbolt 3, and Thunderbolt 4 ports. Support for Windows, macOS, and Linux allows for seamless use of the device in various work environments. The enclosure is also compatible with select TerraMaster NAS servers running TOS 5.1 or later, allowing you to expand your available storage capacity. Thanks to its compact design, the device takes up very little space and fits easily on a desk or in a small server room.Included in the package TerraMaster D6-320 enclosure Power adapter Power cord USB-C to USB-C cable (10 Gb/s, 1 m) Set of mounting screws Quick installation guide Manufacturer’s warranty document Manufacturer TerraMaster Model D6-320 Number of bays 6 Supported drives 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD Maximum capacity per drive 22 TB Maximum total capacity 132 TB Operating Mode SINGLE DISK / JBOD Interface USB 3.2 Gen 2 Type-C (10 Gb/s) Maximum Read Speed up to 1016 MB/s (6 × SSD) Maximum write speed up to 986 MB/s (6 × SSD) Hot-swap capability yes Supported file systems NTFS, APFS, Mac OS, FAT32, EXT4, exFAT Compatible operating systems Windows, macOS, Linux Noise level 28.4 dB(A) Power supply 120 W Dimensions 226 × 130 × 218 mm Net weight 3.4 kg Operating temperature 0°C – 40°C

TERRAMASTER D4-320U 4-Bay DAS EnclosureThe TerraMaster D4-320U is a high-performance DAS enclosure equipped with 4 bays for SATA HDDs and SSDs, designed to expand storage capacity for servers, workstations, and NAS devices. Thanks to its USB 3.2 Gen 2 Type-C interface with a bandwidth of up to 10 Gb/s, the device provides fast data access and transfer speeds of up to 1016 MB/s. The enclosure supports up to 96 TB of storage capacity, is compatible with Windows, macOS, Linux, Proxmox, TrueNAS, and Unraid, and its compact design—just 241 mm deep—allows for convenient installation even in small server racks.More storage space without replacing your infrastructureThe D4-320U makes it easy to increase available storage space without having to replace existing servers or arrays. The four bays support 3.5-inch SATA HDDs, 2.5-inch HDDs, and 2.5-inch SSDs, allowing users to choose storage media that best suit their needs. With a maximum capacity of 96 TB, the device is ideal for data archiving, storing backups, and working with large file sets. This solution is designed for businesses and users who need scalable storage in a compact form factor.Data transfer speeds up to 10 Gb/sThe enclosure uses a USB 3.2 Gen 2 Type-C interface, which provides a bandwidth of up to 10 Gb/s. In tests with four drives, actual read and write speeds reached up to 1016 MB/s, allowing you to efficiently copy large amounts of data and handle demanding tasks. When using a single SSD, transfer speeds can reach 560 MB/s, ensuring fast handling of documents, multimedia, and backups. High performance translates to shorter completion times for everyday operations and greater convenience.Wide Compatibility and Support for Multiple SystemsThe enclosure is compatible with Windows, macOS, and Linux, as well as popular server and virtualization platforms such as Proxmox, TrueNAS, and Unraid. The Plug & Play feature eliminates the need to install drivers, so the device is ready to use immediately after connection. The package includes USB-C to USB-C and USB-A to USB-C cables, which facilitate integration with various computers and servers. Additionally, compatibility with USB 3.0, USB 3.1, USB 3.2, Thunderbolt 3, and Thunderbolt 4 ports ensures great flexibility when expanding your infrastructure.Storage Expansion for TerraMaster NAS ServersThe D4-320U has been optimized to work with TerraMaster NAS servers running TOS 5.1 or later. Once the device is connected via USB, you can create additional storage pools and expand the available data storage space. This solution allows you to scale your data storage environment as your business grows without having to invest in additional servers. It’s a convenient way to increase the capacity of your existing NAS system.Stable and Quiet Operation Over the Long TermThree fans equipped with an intelligent temperature control system ensure effective cooling. Automatic speed adjustment helps maintain optimal operating conditions for the drives even under heavy load. With a noise level of approximately 26.7 dB(A), the device is suitable for use in an office environment. The drive sleep function further helps reduce energy consumption during periods of inactivity.Included in the package TerraMaster D4-320U enclosure Power adapter Power cord 10 Gb/s USB-C to USB-C cable (0.8 m) USB-A to USB-C 10 Gb/s cable (0.8 m) Set of mounting screws Quick start guide Warranty card Manufacturer TerraMaster Model D4-320U Number of bays 4 Supported drives 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD Maximum capacity 96 TB (4 × 24 TB) Host interface USB 3.2 Gen 2 Type-C Interface bandwidth up to 10 Gb/s Maximum transfer speed up to 1016 MB/s Single SSD read speed up to 560 MB/s Supported file systems NTFS, APFS, Mac OS, FAT32, exFAT, EXT4 Noise level 26.7 dB(A) Power supply 72 W Dimensions 440 × 241 × 45 mm Net weight 2.7 kg Supported operating systems Windows, macOS, Linux

TERRAMASTER F4-425 NAS File Server with Intel N5095, 16GB RAM, 4 baysThe TerraMaster F4-425 is a 4-bay NAS server designed for storing, sharing, and securing data in the home and small office. The device is equipped with a quad-core Intel N5095 processor clocked at up to 2.9 GHz, 4 GB of DDR4 RAM, and a 2.5GbE network port. The server supports 3.5" and 2.5" SATA HDD and SSD drives, offering a maximum capacity of up to 120 TB. The TOS 6 operating system provides extensive features for file management, backup, data synchronization, and remote access. This solution is ideal for users who want to store photos, videos, documents, and backups in a single, easily accessible location.A powerful platform for everyday work and multimediaThe Intel N5095 processor, based on the x86-64 architecture, ensures smooth operation. The processor features four cores, allowing it to effortlessly handle simultaneous tasks such as data storage, file synchronization, backups, and server applications. The server comes standard with 4 GB of DDR4 RAM, which can be expanded to a maximum of 16 GB, allowing you to adapt the configuration to your growing needs. An additional advantage is the 2.5GbE network port, which allows for higher data transfer speeds than a standard gigabit connection.Smart Photo Management with Privacy ProtectionThe Terra Photos system uses local artificial intelligence mechanisms to automatically organize photo libraries. The software can recognize faces, animals, objects, and landscapes, which significantly simplifies the organization of large photo collections. Analysis takes place directly on the device, so photos are not sent to external cloud services. Users can create well-organized family, travel, or themed albums and quickly search for content of interest. Support for popular formats, such as JPG, PNG, GIF, WEBP, and HEIC, allows for convenient management of photos from various devices.A Secure Space for the Whole FamilyThe TerraMaster F4-425 allows you to create multiple independent user accounts, so every member of the household can have their own data space. Separate permissions help protect private files, while shared folders make it easy to exchange documents, photos, or multimedia content. The TOS 6 system offers extensive security features, including data encryption, protection against unauthorized access, automatic blocking of suspicious login attempts, and a firewall. This ensures that important files are better protected against data loss, ransomware attacks, and accidental deletion.Automatic synchronization and convenient backupsUsing the TerraSync and TNAS PC Client applications, users can automatically synchronize files between their computer and the NAS server in real time. Every change in selected folders is detected and saved almost instantly, making it easier to work across multiple devices. The system also supports file versioning, allowing you to restore previous versions of documents. Additionally, backup features are available from computers, smartphones, USB drives, and cloud services. Centralizing data in one place makes it easier to manage resources and enhances the security of stored information.Media server and access to data from anywhereThe F4-425 also works well as a home media center. The device supports hardware-accelerated 4K video transcoding in the popular H.264 and H.265 formats, making playback on various devices smoother. The server works with popular multimedia platforms such as Plex, Emby, and Jellyfin, allowing you to create your own library of movies, music, and photos. Thanks to the TNAS online service, users can access their data remotely without complicated network configuration. The device can also be managed via the TNAS Mobile app, available for smartphones and tablets.Included TerraMaster F4-425 NAS server AC power adapter Power cord RJ-45 network cable Quick start guide Warranty information Set of mounting screws Manufacturer TerraMaster Model F4-425 Device type NAS server Numb

TerraMaster F2-425 Plus NAS File Server with Intel N5095, 4GB RAM, 2 baysThe TerraMaster F2-425 Plus NAS file server is a high-performance NAS solution for home users, advanced users, and small businesses. The device is equipped with a quad-core Intel N150 processor clocked at up to 3.6 GHz, 8 GB of DDR5 5600 MHz memory, and two 5GbE network ports for very fast data transfer. The design features 2 SATA drive bays and 3 M.2 NVMe slots, allowing you to expand storage capacity up to 84 TB. The server supports hardware-accelerated decoding and transcoding of video content up to 4K at 60 fps, enables the creation of a private cloud without a subscription, and offers advanced backup, remote access, and data protection features.A high-performance platform for data storage and sharingThe TerraMaster F2-425 Plus is designed for users who expect fast file access and stable, round-the-clock operation. The quad-core Intel N150 processor works in tandem with 8 GB of DDR5 memory, allowing the device to efficiently handle simultaneous tasks such as data archiving, file synchronization, and server application support. The built-in AES-NI encryption engine enhances the security of stored data without compromising performance. This combination makes the server well-suited for use as both a home data center and a file storage solution for multiple users in an office.Flexible storage expansionThe F2-425 Plus offers two bays for 3.5" or 2.5" SATA HDD/SSD drives with a capacity of up to 30 TB each. Additionally, the device is equipped with three M.2 NVMe PCIe 3.0 slots, each supporting drives with a capacity of up to 8 TB. Together, this allows you to create a data storage environment with a capacity of up to 84 TB. Support for multiple RAID modes allows you to tailor the configuration to your specific security and performance requirements, and the hot-swap feature lets you replace drives without powering down the device.Private Cloud and Smart Photo ManagementThe TNAS system allows you to create your own private cloud accessible from anywhere in the world. Photos and files remain under the user’s full control, without the need for external subscription services. Built-in AI algorithms run locally on the device and help automatically organize photos by people, animals, objects, or landscapes. This makes searching for specific photos much faster while maintaining data privacy.Advanced Backups and Data SecurityThe server offers a wide range of features to protect data against loss. It supports Snapshot, CloudSync, Time Machine, Rsync, USB Backup, and TerraMaster’s proprietary backup solutions. Additional security measures, such as AES encryption, a firewall, automatic account locking, and OTP authentication, further enhance the protection of stored information. As a result, the device is ideal for both archiving family photos and storing important business data.A Multimedia Center for Home and OfficeThe TerraMaster F2-425 Plus supports popular multimedia platforms such as Plex, Emby, and Jellyfin. The server offers advanced hardware decoding and transcoding of video content at resolutions up to 4K at 60 fps in H.264, H.265, MPEG-4, and VC-1. This allows videos to play smoothly on Smart TVs, computers, smartphones, and tablets without overloading the end devices. Additionally, support for Docker, VPN Server, Surveillance Manager, and file-downloading applications allows you to use the NAS as a versatile management hub for your home or business infrastructure.Included TerraMaster F2-425 Plus NAS server AC power adapter RJ45 network cable Quick Installation Guide Warranty Information Set of mounting screws Manufacturer TerraMaster Model F2-425 Plus Device Type NAS Server Processor Intel N150 Processor Clock Speed up to 3.6 GHz RAM 8 GB DDR5 5600 MHz Maximum RAM 32 GB DDR5 Number of drive bays 2 Supported drives 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD Maximum SATA Bay Capacity 60 TB (2 × 30 TB) M.2 Slots 3 × M.2 2280 NVMe PCIe 3.0 Maximum system capa

TERRAMASTER F4-425 Plus NAS File Server with Intel N95, 8 GB RAM, 4 baysThe TerraMaster F4-425 Plus is a modern NAS server equipped with a quad-core Intel N95 processor clocked at up to 3.4 GHz, 8 GB of DDR4 memory, and 4 SATA drive bays. The design has been further enhanced with 3 M.2 NVMe slots, two 5GbE network ports, and extensive data management and backup features. With support for multiple RAID levels, AES-NI hardware encryption, and an advanced TOS system, the device is ideal both as a central file storage solution for businesses and as a private cloud for home users. The F4-425 Plus combines large capacity, high performance, and extensive expandability in a single compact chassis.Modern Intel N95 hardware platformAt the heart of the device is the Intel N95 processor based on the Alder Lake architecture, featuring 4 cores and 4 threads. The processor reaches a frequency of up to 3.4 GHz in Turbo mode, ensuring smooth operation while simultaneously sharing files, creating backups, or running server applications. The integrated graphics chip supports hardware decoding and transcoding of H.264, H.265, MPEG-4, and VC-1 content at a maximum resolution of 4K Ultra HD (4096 × 2160) at 60 fps, reducing the load on the CPU when running applications such as Plex, EMBY, or Jellyfin. The pre-installed 8 GB of DDR4 memory allows for smooth operation of multiple services simultaneously, and the memory can be expanded up to 32 GB.Fast network communication thanks to dual 5GbEThe TerraMaster F4-425 Plus is equipped with two 5GbE network ports, which support advanced network configurations, including Link Aggregation and SMB Multichannel. With the right infrastructure, the device can achieve linear write speeds of up to 1010 MB/s using SMB Multichannel. Such high bandwidth is ideal for simultaneous use by multiple users, editing large multimedia files, or performing fast backups. An additional advantage is the USB 3.2 Gen 2 ports with a bandwidth of up to 10 Gb/s, which allow for convenient connection of external storage devices.Private Cloud and Smart Photo ManagementThe TNAS system lets you create your own private cloud without having to pay for subscriptions or use external data storage services. Thanks to remote access technology, you can access your files from anywhere in the world. Built-in artificial intelligence algorithms analyze photos directly on the device, eliminating the need to upload private data to a public cloud. The system automatically recognizes people, animals, objects, and scenes, making it easier to organize large photo libraries and quickly find the content you need.Advanced data protection and comprehensive system featuresThe F4-425 Plus offers a wide range of tools to protect data against loss and unauthorized access. The device supports AES encryption, Snapshot, OTP authentication, SSL certificates, firewall protection, and the HyperLock system. Extensive backup mechanisms are also available, such as Time Machine, Rsync Backup, CloudSync, USB Backup, Duple Backup, and Centralized Backup. With support for Docker, Plex Media Server, EMBY, Surveillance Manager, and VPN Server, the server can function as a media center, a monitoring platform, a container environment, or a secure remote access server.Included TerraMaster F4-425 Plus NAS server AC power adapter Power cord RJ-45 network cable Quick start guide Warranty information Set of mounting screws Manufacturer TerraMaster Model F4-425 Plus Processor Intel N95, 4 cores / 4 threads Processor clock speed up to 3.4 GHz Turbo Architecture x86 64-bit RAM 8 GB DDR4 Maximum RAM 32 GB Number of Drive Bays 4 Supported Drives 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD Maximum SATA Capacity 120 TB (4 × 30 TB) Hardware Video Decoding and Transcoding H.264, H.265, MPEG-4, VC-1 Maximum Hardware Transcoding Resolution 4K Ultra HD (4096 × 2160) Maximum frame rate 60 FPS M.2 slots 3 × M.2 2280 NVMe PCIe 3.0 x1 Hot Swap Yes Supported RAID RAID, Single, JBOD, RAID 0, RAID 1, RA

GEEKOM IT12 Max Core Ultra 5 125U 16GB 500GB Win11 Pro Mini PCThe GEEKOM IT12 Max is a modern mini PC designed for users who expect high performance, energy efficiency, and maximum functionality in a compact form factor. Equipped with an Intel® Core™ Ultra 5 125U processor based on the Meteor Lake architecture, 16 GB of LPDDR5 memory, and a fast 500 GB PCIe 4.0 SSD, it ensures smooth office performance, multitasking, and a comfortable experience when using modern applications. The pre-installed Windows 11 Pro system lets you get to work immediately after booting up, and the extensive array of ports and support for multiple monitors make this device ideal for both the office and home.More performance every dayThe new generation of Intel Core Ultra processors is designed for even greater efficiency. Thanks to the Intel® Core™ Ultra 5 125U, the computer easily handles multiple running programs simultaneously, processes data faster, and ensures smooth operation of office, business, and creative applications. High performance combined with energy efficiency means greater comfort and lower energy consumption, whether you’re creating documents, analyzing data, programming, or using AI-powered tools.Unlimited workspaceIntegrated Intel® Graphics supports two 8K monitors or even four 4K screens simultaneously. This is a huge advantage for those working on multiple applications, spreadsheets, and documents at the same time. Additionally, as many as 15 built-in ports, including 2 × USB4, 2 × 2.5G LAN, 5 × USB 3.2 Gen 2, and an SD 4.0 card reader, allow you to connect all necessary devices without the need for adapters. Greater work comfort, faster data access, and better workstation organization become the everyday standard.Quiet, cool, and built to lastThe proprietary IceBlast 3.0 cooling system utilizes dual copper heat pipes and an intelligently controlled fan that dynamically adjusts its operation to the current load. As a result, the computer maintains high performance even during hours of use, staying cool and exceptionally quiet. The sturdy construction with a metal frame and durable materials can withstand up to 200 kg of pressure, and the included VESA mount allows for an aesthetically pleasing installation behind a monitor or under a desk, helping to save valuable desk space.Expandability, security, and complete freedom of operationThe GEEKOM IT12 Max is designed not only for current needs but also for future expansion. The fast PCIe 4.0 SSD can be expanded up to 2 TB, and an additional 2.5" SATA bay allows you to easily increase storage capacity. The device is compatible not only with Windows 11 Pro but also with Linux, Ubuntu, Proxmox VE, and ESXi, making it suitable as an office computer, workstation, home server, or virtualization platform. Data security is supported by a dTPM 2.0 hardware module, and the manufacturer’s 3-year warranty along with 24/7 technical support ensure peace of mind for the long term.Included: GEEKOM IT12 Max Core Ultra 5 125U 16GB 500GB Win11 Pro Mini PC Hyleton 120 W power supply VESA Mount bracket Manufacturer Geekom Model GEEKOM IT12 Max Processor Intel® Core™ Ultra 5 125U Processor architecture Intel Meteor Lake RAM 16 GB LPDDR5 Memory type LPDDR5 Dual Channel SSD 500 GB PCIe 4.0 SSD SSD Upgradeability Up to 2 TB Additional Storage Space 2.5" SATA Bay Graphics Integrated Intel® Graphics Monitor Support Up to 2 × 8K or 4 × 4K Operating System Windows 11 Pro USB4 Ports 2 × USB4 with DisplayPort USB 3.2 Gen 2 Type-A Ports 5 USB 3.2 Gen 2 Type-C Port 1 USB 2.0 Port 1 HDMI port 1 LAN port 2 × 2.5 Gigabit Ethernet Memory card reader SD Card Reader 4.0 Audio connector 3.5 mm headphone/microphone jack Security Kensington Lock slot Security module dTPM 2.0 Cooling system IceBlast 3.0 Cooling design Dual copper heat pipes + intelligent fan Continuous operation Designed for 24/7 operation Chassis material UV-coated PC plastic + die-cast metal frame Pressure resistance Up to 200 kg System compatibility Windo

DiskStation DS1825+High-Capacity, Flexible Data Management Platform The DS1825+ is a versatile 8-bay storage solution designed to store and protect business-critical data. Flexible support for faster networking and capacity expansion makes it ideal for organizations that require a scalable and customizable storage solution to meet growing data demands. Powered by Synology DiskStation Manager (DSM), it provides a comprehensive, all-in-one platform for file sharing, synchronization, backup, and surveillance. Reliable Performance Up to 2,239/1,573 MB/s sequential read/write throughput supports demanding office-wide applications. Fast and Flexible Networking Built-in 2.5GbE ports, with support for optional 10GbE SFP/RJ-45 and 25GbE SFP28 network adapter cards. Simple Expansion Scale on demand with up to two DX525 expansion units, reaching 18 drive bays and up to 360 TB of raw storage. Comprehensive Backup Protect your IT infrastructure with license-free backup, replication, and recovery solutions. Long-Term Support Backed by a 3-year limited hardware warranty, extendable to 5 years in select markets. Versatile Storage for Growing Businesses The DS1825+ integrates seamlessly into existing infrastructure. With scalable capacity, flexible networking, and robust data protection, it is ideal for businesses and creative professionals with demanding storage requirements. Up to 2,239/1,573 MB/s sequential read/write speeds for intensive workloads Supports 8 x 2.5" SATA SSDs and 3.5" SATA HDDs; Synology drives ensure seamless integration and exceptional reliability Expandable up to 18 drives / 360 TB raw capacity with two Synology DX525 expansion units Dual built-in 2.5GbE ports with Link Aggregation for failover and load balancing Includes a PCIe 3.0 slot for optional 10GbE RJ-45 or 10/25GbE SFP/SFP28 network adapters Two built-in M.2 slots for SSD caching without occupying drive bays Ease of Use and Security Features Combined with DSMs intuitive interface, built-in convenience and security tools ensure a seamless experience for users at all levels. Access your system easily from any browser via QuickConnect Adaptive Multi-Factor Authentication (AMFA) adds extra protection for suspicious external logins Customizable delegation roles improve management efficiency while restricting access to critical settings Active Insight leverages machine learning to detect malware and malicious activity, automatically creating immutable snapshots to protect data Built-In Data Protection and High Availability License-free solutions help safeguard data and configurations, maximize uptime, and enable backup and restoration of devices, virtual machines, and cloud applications. Synology High Availability ensures fast failover between two identical Synology units for uninterrupted service Snapshot Replication provides scheduled, near-instant data protection with version control for shared folders and LUNs Hyper Backup secures data to multiple destinations with integrity checks, deduplication, compression, and versioning Active Backup Suite consolidates protection for Windows servers and clients, Linux endpoints, Synology systems, VMware and Hyper-V VMs, and SaaS applications, maximizing storage efficiency through deduplication C2 Storage for Hyper Backup offers a dedicated, secure public cloud destination for Synology NAS backups Collaboration, Communication, and Organization Hub Synology provides a private cloud solution for on-site and remote workers, as well as home users, enabling document collaboration, file sharing, email management, instant messaging, photo management, and more. Synology Drive centralizes file storage and organization with granular sharing permissions and customizable security Synology Photos offers comprehensive photo and video storage, organization, and sharing Synology Office enables real-time collaboration on documents, spreadsheets, and presentations with versioning and password protection Synology Chat connects teams via one-to-o