Cache Memory features: USB 2.0 16G USB Flash Drive Hanging Hole Design Memory Disk Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Specifications:1. Interface: USB 2.0 2. Capacity: 16GB 3. Size: 4.1 * 1.7* 0.7cm 4. Data Transfer Rate Read:15MB/s 5. Data Transfer Rate Write: 6MB/s 6. Material:100% Full Metal Body 7. Compatible: Support PC, Notebook, For MACFeatures:1. Plug and play. 2. Easy to carry and you can put in a keychain and use it at any time you want. 3. Store your pictures, videos, and songs and any kind of data. 4. Support Windows 7 / 8, Windows Vista, Windows 2000, for Mac OS X, Linux. 5. Easy to read and read in high speed, you does not need drive/power supply only plug in. 6. Hanging hole design, you could attach the flash drive to your key ring or bag via a strap andavoid being lost. Packaged Included:1 * USB Flash Drive