CM321-70610 specification sheet

Overview:

The UGREEN CM321 USB Type-C to 2.5-inch SATA converter cable offers a fast and practical way to connect SATA HDDs and SSDs directly to your laptop or desktop through a modern USB-C port. Designed for quick access to files, backups, upgrades, and drive recovery, this compact adapter removes the need for bulky external enclosures or additional power supplies. With support for high-speed 5Gbps transfers and wide operating system compatibility, it is a reliable storage solution for both home and professional users.

Description:

The UGREEN CM321 USB-C to SATA adapter cable is built for users who need quick and reliable access to 2.5-inch SATA drives. Supporting HDDs, SSDs, and SSHDs up to 5TB, it delivers fast USB 3.0 transfer speeds, low-latency UASP acceleration, and plug-and-play convenience without drivers or external power. Its integrated 50cm cable, ASM1153E chipset, and broad compatibility with Windows, macOS, Linux, and ChromeOS make it ideal for backups, system migrations, data recovery, and portable storage access.

Features:

Fast USB-C to SATA Storage Access
Whether you are upgrading a laptop SSD, recovering important files, or transferring large media libraries, this USB Type-C to SATA adapter simplifies the process. The USB 3.0 Type-C interface delivers transfer speeds of up to 5Gbps, helping reduce waiting times when moving large files between devices.

Support for UASP technology improves performance further by lowering latency and increasing throughput, particularly when paired with SSDs. The SATA III interface also supports up to 6Gbps bandwidth, ensuring stable and responsive communication with compatible drives.

Key performance highlights include:

• USB 3.0 and USB 3.1 Gen 1 Type-C connectivity
• Data transfer rates up to 5Gbps
• SATA III interface with backward compatibility for SATA II and SATA I
• UASP support for faster SSD performance
• TRIM support for maintaining SSD efficiency

Simple Plug-and-Play Operation
The UGREEN CM321 removes unnecessary setup complications. There are no drivers to install and no external power adapters required. Simply connect your 2.5-inch SATA drive and plug the USB-C connector into your computer for instant access.

Hot-swap support allows drives to be connected or disconnected without restarting your system, making it especially useful for technicians, IT professionals, and users managing multiple drives.

Additional convenience includes:

• Driver-free installation
• Bus-powered design
• Automatic sleep mode for energy saving
• LED activity indicator
• S.M.A.R.T monitoring support for drive health checks

Built for Modern Systems and Everyday Use
Compatibility is one of the strongest advantages of this USB-C SATA converter cable. It works seamlessly across major operating systems, making it suitable for office environments, home setups, content creators, and students alike.

The integrated 50cm cable provides enough flexibility for desktop use without creating unnecessary clutter. The durable PVC construction also helps maintain reliability during regular transport and daily use.

Common use cases include:

• External storage expansion
• SSD cloning and system migration
• Data backup and recovery
• Accessing old laptop hard drives
• Portable storage management

Technical Details

• Product: UGREEN CM321 USB Type-C to SATA Converter Cable
• Part Number / SKU: CM321-70610
• Connectivity: USB Type-C to SATA adapter
• Supported drive size: 2.5-inch
• Compatible drive types: SATA HDD, SSD, SSHD
• Maximum supported capacity: Up to 5TB
• USB interface: USB 3.0 / USB 3.1 Gen 1
• SATA interface: SATA III
• Transfer speed: Up to 5Gbps
• Chipset: ASM1153E
• Cable length: 50cm
• Material: PVC
• Weight: 0.25kg
• Operating system support: Windows, macOS, Linux, ChromeOS

What Comes in the Box

• UGREEN CM321 USB Type-C to 2.5-inch SATA converter cable

A Practical Storage Upgrade Tool
For users looking for a dependable USB-C to SATA solution, the UGREEN CM321 provides an efficient balance of speed, portability, and ease of use. From quick backups to SSD upgrades and drive recovery tasks, this adapter cable delivers reliable performance in a compact format. The CM321-70610 model is particularly suited to modern USB-C laptops and desktops that require fast access to legacy SATA storage devices.

Specifications:

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Specifications
Product Code	CM321-70610
Connectivity Type	USB Type-C to SATA Adapter
USB Interface	USB 3.0 / USB 3.1 Gen 1 Type-C
SATA Interface	SATA III (backward compatible with SATA II / SATA I)
Supported Drive Size	2.5-inch
Supported Drive Types	SATA HDD / SSD / SSHD
Maximum Drive Capacity	Up to 5TB
Maximum Data Transfer Speed	Up to 5Gbps (USB interface speed)
SATA Bandwidth Support	Up to 6Gbps (SATA III)
Transfer Acceleration	UASP (USB Attached SCSI Protocol) support
TRIM Support	Yes
Chipset	ASM1153E
Plug & Play	Yes
Driver Required	No
Hot Swap Support	Yes
External Power Required	No
S.M.A.R.T Monitoring Support	Yes
Auto Sleep Function	Yes
LED Activity Indicator	Yes
Backward Compatibility	USB 2.0 compatible
Operating System Support	Windows, macOS, Linux, ChromeOS
Primary Uses	Data transfer, drive recovery, system upgrades, backups, storage expansion
Cable Type	Built-in integrated cable
Cable Length	50cm
Material	PVC
Product Weight	0.25kg