Dimensions: 82 x 47 x 14mm Card slot: SD/MMC CF-I/CF-II MS/MS DUO XD Supported memory card: CF1, CF2 Extreme, CF Extreme3, CF Ultra 2, CF, HS, CF MagicStor, MS, MS Pro, MS MagicGate Extreme, MS Pro Ultra 2, MS Pro HS, MS MagicGate Pro, SD Extreme 3, SD Extreme, SD Ultra 2, SD, SD PRO, Ultra Speed SD HS, mini SD MMC1, MMC2, SM, SM ROM, XD, HS, DV-RS, MMC, T-Flash, and more Supports hot-swap and Plug-and-play O/S supported: Windows 98SE, 20, ME, XP, and Mac 8.6 With LED indication Low consumption, suitable for desktop and notebook