UGREEN US221 2.5 Inch Hard Drive Box (UG-30847)

The UGREEN US221 provides a versatile storage solution for 2.5-inch drives. This external enclosure combines high-speed data transfer with practical design elements for both casual and professional users.

Superior Data Transfer Performance

The US221 hard drive box features USB 3.0 connectivity with data transfer rates up to 5Gbps. This high-speed interface delivers:

• Theoretical speeds up to 625MB/s (5Gbps)
• Actual transfer speeds up to 450MB/s with SSDs
• Up to 10× faster performance than USB 2.0 connections
• Backward compatibility with USB 2.0 ports

Furthermore, the UGREEN US221 supports UASP (USB Attached SCSI Protocol) for enhanced data throughput. This technology consequently reduces CPU utilization while improving overall transfer efficiency by up to 70% compared to traditional BOT (Bulk-Only Transport) protocol.

Universal Drive Compatibility

The US221 enclosure accommodates various 2.5-inch drive formats:

• SATA I/II/III SSDs up to 9.5mm height
• SATA I/II/III HDDs up to 9.5mm height
• Storage capacities up to 4TB (verified)
• 7mm and 9.5mm drive heights without adapters

This compatibility ensures the US221 works with most standard 2.5-inch drives available on the market. Additionally, the tool-free design enables quick drive installation without screws or special equipment.

Practical Design Elements

The UGREEN US221 features thoughtful design aspects focused on usability:

• Tool-free installation with slide-and-lock mechanism
• LED activity indicator showing power and data transfer status
• Durable ABS plastic construction with textured surface
• Compact dimensions for portability (126 × 78 × 15mm)

Moreover, the enclosure requires no external power supply, drawing necessary power directly from the USB port. This design therefore enhances portability for on-the-go use.

Comprehensive System Compatibility

The US221 hard drive box provides broad compatibility across major operating systems:

• Windows 11/10/8.1/8/7/Vista/XP
• macOS 10.6 and above
• Linux distributions with USB storage support
• Chrome OS and select Android devices with OTG support

This versatility makes the UGREEN US221 suitable for cross-platform data access and storage expansion.

Ideal Users for the UGREEN US221 Hard Drive Box

• IT professionals: The tool-free design and high-speed USB 3.0 interface make this ideal for quick data recovery operations and drive diagnostics without system disassembly.
• Content creators: Photographers and videographers benefit from rapid file transfers between multiple storage drives while working with large media libraries.
• Students and remote workers: The compact enclosure allows easy transport of large data sets between locations without carrying a complete system.
• Home users: The simple installation process enables convenient repurposing of leftover laptop drives for backup or expanded storage.

Physical Specifications

• Dimensions: 126 × 78 × 15mm
• Weight: 68g (without drive)
• Color: Black
• Material: ABS plastic
• Cable length: 30cm
• LED indicator: Blue for power/activity

Technical Specifications

• Interface: USB 3.0 (Micro-B port on enclosure)
• Internal connection: SATA III (6Gbps)
• Maximum data rate: 5Gbps theoretical
• Supported drives: 2.5-inch SATA HDD/SSD (7mm to 9.5mm)
• Maximum capacity supported: 4TB (verified)
• UASP support: Yes

Compatibility Specifications

• Operating systems: Windows 11/10/8.1/8/7/Vista/XP, macOS 10.6+, Linux, Chrome OS
• File systems supported: NTFS, FAT32, exFAT, HFS+, ext2/3/4
• Power supply: Bus-powered (no external power required)
• USB compatibility: USB 3.0, backward compatible with USB 2.0/1.1

Package Contents

• UGREEN US221 2.5-inch Hard Drive Enclosure
• 30cm USB 3.0 Type-A to Micro-B cable
• User manual
• Warranty card