• USB 2.0 standard interface U-disk, compatible with most computers and laptops
• Metal shell material, fine workmanship, exquisite and stylish
• No external power is required, plug and play, no need to drive
• Can be used to back up files, movies, music, pictures, software, etc.
• Comes with a metal chain and ring, convenient to carry
• Waterproof, heat/cold resistant, magnet-proof, X-ray resistant, durable to use

Specification:

• Memory: 4GB
• Shell material: metal
• Size: 40*12*5mm
• Upload speed: 12-18Mb/s
• Download speed: 4-6Mb/s