MODEL- ACR801U20BLACK VENDOR- ATHENATECH FEATURES- USB 2.0 3.5" Internal 8-in-1 Card Reader- Black Four slot units for CompactFlash (Type I/Type II) MicroDrive SmartMedia Memory Stick/Memory Stick Pro SecureDigital Multi- MediaCard. A convenient and fast data exchange device for MP3 PDA Digital Cameras etc.* Fits 3.5" bays of computer case.* Conforms to USB 2.0 specifications.* Supports Windows 98SE/ME/2000/XP and Macintosh OS 9.0 or later.* No drivers required except for Windows 98/98SE/2000.* No external power required.* Connect to motherboard by mini USB cable (4-pin header connects to motherboard. -- SPECIFICATIONs -------------------------------------INTERFACE/BUS- USB 2.0/1.x via 4-pin headerTRANSFER RATE- up to 480MbpsPOWER- via USB port no external power requiredSIZE - 4.04" x 3.88" x 1.0"