High-Speed USB 3.0 Data Transfer
The converter delivers fast and reliable file transfers for both HDDs and SSDs.
Performance Features
- USB-C 3.0 interface
- Data transfer speeds of up to 5Gbps
- Supports UASP (USB Attached SCSI Protocol) for faster data transfers
- Backward compatible with USB 2.0 and USB 1.1
- Stable and efficient performance
UASP technology can improve read and write performance when used with compatible operating systems and SSDs.
Supports 2.5-Inch SATA Drives
The CM321 is designed specifically for 2.5-inch SATA storage devices.
Compatibility
- 2.5-inch SATA SSDs
- 2.5-inch SATA HDDs
- SATA I (1.5Gbps)
- SATA II (3Gbps)
- SATA III (6Gbps)
- Supports drives with capacities up to 6TB
It is ideal for upgrading storage, recovering files, cloning drives, or converting an internal drive into portable external storage.
USB Bus-Powered Design
No external power adapter is required for supported 2.5-inch drives.
Power Features
- Powered directly through the USB-C connection
- No additional power supply required
- Convenient single-cable operation
- Suitable for portable use
This simplifies setup and makes the converter highly portable for everyday use. It is intended for 2.5-inch drives only; 3.5-inch desktop hard drives require an external power source.
Plug-and-Play Convenience
The adapter is ready to use immediately after connecting.
Setup Features
- No drivers required
- Plug-and-play installation
- Hot-swappable design
- Quick device recognition
Simply connect the SATA drive to the adapter and plug the USB-C connector into your computer to begin transferring files.
Durable 50cm Cable
The 50cm cable provides flexibility while maintaining reliable connectivity.
Build Quality
- Cable Length: 50cm (19.7 inches)
- Durable PVC or nylon-braided cable (depending on product version)
- High-quality copper wiring
- Robust connectors
- Designed for repeated use
The cable length provides enough room for comfortable desktop setups while remaining easy to carry.
Broad Operating System Compatibility
The converter works with most modern operating systems.
Supported Platforms
- Windows
- macOS
- Linux
- ChromeOS
No additional software is required, making it suitable for both personal and professional environments.
Ideal Applications
The UGREEN CM321 is suitable for many storage-related tasks.
Recommended Uses
- Data backup
- File recovery
- SSD upgrades
- Hard drive cloning
- System migration
- External storage
- IT maintenance
- Repair workshops
- Home and office use
It is especially useful for accessing data from old laptop hard drives or quickly testing SATA drives.
Community Feedback
Users generally appreciate USB-C SATA adapters like the CM321 for their simplicity and portability. Community discussions note that 2.5-inch SATA drives typically work without an external power adapter, while 3.5-inch desktop drives require separate power due to higher power demands.
Key Advantages
Why Choose the UGREEN USB-C 3.0 to 2.5-Inch SATA Converter CM321?
- USB-C 3.0 interface
- Transfer speeds up to 5Gbps
- Supports UASP for improved performance
- Compatible with SATA I, II, and III drives
- Supports 2.5-inch HDDs and SSDs
- Drive capacities up to 6TB
- Plug-and-play operation
- USB bus-powered
- Durable 50cm cable
- Compatible with Windows, macOS, Linux, and ChromeOS
FAQs
The adapter supports 2.5-inch SATA I, SATA II, and SATA III HDDs and SSDs with capacities of up to 6TB. It is not designed to power 3.5-inch desktop hard drives.
The converter supports USB 3.0 transfer speeds of up to 5Gbps and includes UASP support for improved performance with compatible systems.
No. 2.5-inch SATA drives are powered directly through the USB-C connection. However, 3.5-inch SATA hard drives require an external power adapter because of their higher power requirements.
Yes. It supports Windows, macOS, Linux, and ChromeOS without requiring additional drivers or software.
You can use it for backing up files, recovering data from old drives, upgrading to an SSD, cloning disks, transferring files, or turning a 2.5-inch SATA drive into portable external storage.










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