This should be the smallest, thinnest and waterproof USB Flash Drives you can find. The thickness is only 2.3mm,it is so thin that it can be placed in a wallet or other similar areas. It is short enough,the length is only 16.7mm,After inserting the USB port, the hight only shows about 5-7mm. Ideal for use on a tablet, laptop, or car with a USB port. Specification: Length: 16.7mm Width: 12.2mm Thickness: 2.3mm Weight: 0.8g Capacity: 32GB Controller Chips: SMI SM3271AC1 The data read speed max : 18MB/S The data write speed max : 8MB/S Windows display capacity: 28.8GB (Due to the inner system and procedure data will occupy some space and the real capacity will reduce lightly ) Support USB version 2.0 and 1.0 Easy plug and play installation Stylish lightweight; portable,new concept modeling,classic fashion,compact Brisk High Speed; plug and play, in line with USB 2.0 specification, data transfer speed. Compatible with Windows 7/Windows 8, Windows XP, Windows Vista, Hi-Speed USB 2.0 port required for high speed transfer Support solution for Linux kernel version 2.4 or later version Driveless for OS 9X or up Durable solid-state storage No external power is required 4.5V ~ 5.5V from USB port Operating Temp: -10 to +55Deg.C Storage Temp: -20 to +55Deg.C Item Included: DSLRKIT Slim Small 32GB USB Flash Drive x1