UnionSine HD2510 500 GB 2.5" USB 3.2 Black external hard drive

The UnionSine HD2510 500 GB is a pocket-sized external hard drive in a black 2.5" case. It fits easily in a pocket or laptop bag, is powered from the USB port and runs almost silently. No power adapter is needed.

The drive connects via USB 3.2 (backward compatible with USB 2.0). Inside is a 5400 rpm class 2.5" HDD with an 8 MB buffer. Dimensions: 82 × 129 × 17 mm.

Who it is for

• Storing and moving photos, videos and documents between computers.
• Backing up data from a laptop or PC.
• Extra storage for a PS4 or Xbox One.

Compatibility

Windows 10/8/7/Vista/XP, macOS, Linux, plus PS4 and Xbox One game consoles. To use it with macOS or a console, you may need to reformat the drive to a suitable file system.

Why the system shows 465 GB instead of 500 GB

Manufacturers state capacity in decimal units: 1 GB = 1,000,000,000 bytes. The operating system counts in binary: 1 KB = 1024 bytes, 1 MB = 1024 KB and so on. That is why 500 GB of rated capacity appears as about 465 GB in Windows. It is not a defect or a hidden partition - every HDD and SSD behaves this way.

Do not move the drive while it is running: like any HDD, it is sensitive to shocks. In winter, let the drive sit at room temperature for a few hours after delivery before switching it on, so no condensation forms inside.

How to connect the drive to a Mac or TV and which file system to choose is explained in External hard drive: what it is and how to choose one. Other capacities are in the external hard drives section.