18 in 1 Card Reader 1)USB2.0/1.1 Specifition. 2)Transfer rate up to 12Mbps. 3)Support XD/T-Flash/MiniSD/SD/SDC/SDUtra/HS-MMC/MMC/RS-MMC/MMC II/MS MG Pro Duo/MS MG Duo/MS Pro Duo/MS Duo/MS MG/MS MG Pro/MS Pro/MS card 4)Plug & Play and Hot Swapping support. 5)LED indicator. 6)Power supply: DC+5V supplied by USB port. 7)Support OS: Win98SE/2000/ME/XP/Mac OS 8.6 or higher.