Sumatech 2.0SD001 card reader Capacity support SD 32MB 16GB Operating voltage 2.7 3.6V DC from USB port Dimension 65(L)24(W) 10(H)mm Weight 8g max SupportedOSWindows Vista, Windows 2000 SP4, Windows-ME, Windows XP SP2,Windows 98, 98SE. (Driver support),Linux Kernel 2.4 and above,Mac OS 10 X and above