Size: 16GB-50PACK  | 
Color: BlackUSB Flash
Drive Features: -Swivel
Design: The Aluminum clip rotates 360?? round the ABS plastic body which with rubber oil skin feeling finish -The dimension of the USB is 2.12" * 0.63" * 0.4" (fold). -It comes with eye loop for lanyards or keychain, for easy carring long with your keyring, bag, backbag, and cellphone, etc.
Technical Specifications:
Chip: Grade A, original brand flash memory chip
Interface: USB 2.0. USB 2.0 Compatible (Backwards compatible to USB 1.1 )
Speed: Writing
speed: 5MB/S-7MB/S;
Reading speed: 12MB/S-15MB/S
Compatibility: Desktop, Laptop, Mac., Tablet, Speakers, TVs, Car video system which has USB port and allows data transmission
Operating System: Windows 98second edition/NT/ME/2000/XP/7/ 8.1 /10 and above, it also compatible with Linux and Mac OS 10.3 and above.
Operating Temperatures: 32? F to 140? F (0? C to 60? C)
Storage Temperatures: -4? F to 185? F (-20? C to 85?
C) Durability: 50, 000 times read and write
Package Description: 50pcs of 16GB USB Flash Drives, packed in a nice carton box that easy to open. Tips?? The actual available capacity for data storage is less than what is listed on the products. As some of the listed capacity on a flash storage device is used for formatting and other functions, thus is not available for free data storage of users. The usable space for each capacity is as below:
16GB: with usable storage space around 14.78GB