2521U3 2.5-inch Mobile Hard Disk Case for Laptop SSD and HDD, ABS Plastic External Enclosure with USB 3.0 Micro-B Interface, 5Gbps Transmission Rate, Supports Up to 4TB, Black
2.5-inch Mobile Hard Disk Case with USB 3.0 and 5Gbps Transfer

This 2.5-inch mobile hard disk case is an enclosure for turning an internal laptop SSD or hard disk drive into an external storage unit. It uses a USB 3.0 Micro-B interface and supports a transmission rate of 5Gbps, which is relevant for everyday file transfers. The case measures 128mm (L) x 80mm (W) x 15mm (H) and is made from ABS plastic in black. It supports drive capacities up to 4TB and comes with a 0.3m data cable. The design is aimed at users who need a simple way to access a 2.5-inch drive outside a laptop or desktop. It is a practical accessory for upgrading, repurposing, or carrying a spare drive.
Features and Construction

The enclosure is built around standard 2.5-inch drive dimensions and a USB 3.0 Micro-B connection. Its ABS plastic shell and compact footprint make it suitable for desk use or transport. The included cable allows connection without buying a separate lead.
Material and Build
The outer shell is made from ABS plastic, a common thermoplastic used in electronic accessories. In this case, the material forms a lightweight enclosure for a 2.5-inch drive. The black finish is stated in the source data. The case is designed to hold the drive securely, with the USB 3.0 Micro-B port providing the connection point. No additional materials or coatings are specified.
Size and Practical Fit
The case measures 128mm in length, 80mm in width, and 15mm in height. These dimensions correspond to the standard 2.5-inch drive format. The 0.3m cable is short enough for close placement near a laptop or computer. The case supports capacities up to 4TB, covering many common drive sizes. It is not intended for 3.5-inch drives or other form factors.
Uses and Placement

This enclosure is suited to users who need external access to a 2.5-inch SSD or hard disk drive. It can be used at a desk, in a home office, or while travelling with a laptop. The compact size and included cable support straightforward setup.
Event or Professional Use
For professional or event work, the case can hold a 2.5-inch drive used for moving files between computers. The 5Gbps transmission rate supports routine data transfer, and the USB 3.0 Micro-B interface is common on many computers and hubs. The black ABS shell is unobtrusive in a work setting. The 0.3m cable keeps the connection tidy. Capacity is limited to 4TB, so larger drive requirements are outside the stated support.
Everyday Home Use
At home, this case can turn a spare laptop drive into an external storage unit for documents, photos, or other files. The 128mm x 80mm x 15mm size fits easily on a desk or in a drawer. The USB 3.0 Micro-B connection works with standard USB ports. The case supports up to 4TB, which is enough for many everyday storage needs. It is a simple enclosure rather than a powered dock.
Benefits and Buying Value

The main value is in reusing a 2.5-inch drive instead of leaving it unused. The case provides a defined enclosure, a USB 3.0 Micro-B interface, and an included cable. It keeps the setup practical without extra accessories.
Reuse and Low Maintenance
By housing a 2.5-inch SSD or hard disk drive, this case allows an existing drive to be used externally. The ABS plastic shell can be wiped clean with a dry cloth when needed. There are no stated moving parts in the case itself beyond the drive. The 0.3m cable is included, so no separate cable purchase is required for the stated connection. Maintenance is limited to keeping the case dry and handling the drive with care.
Why Choose This Product
This product is relevant if you need a 2.5-inch enclosure with a USB 3.0 Micro-B interface and a 5Gbps transmission rate. It supports capacities up to 4TB and comes in black ABS plastic. The dimensions of 128mm x 80mm x 15mm suit standard 2.5-inch drives. The packing list includes the hard drive case and data cable. It is a straightforward option for converting an internal laptop drive into an external one.
