The NL-CR03 is a 52 in 1 internal multi-card reader which can be installed into a 3.5” or there is a 5.25” attachable bracket so it can slot in the front of your desktop. The NL-CR03 is internally powered by the motherboard which provides power and data transfer for the device. Specification Compliant with USB specification Revision 2.0 and 1.1 Supports High-Speed (480 Mbps) Full-Speed (12 Mbps) and Low-Speed (1.5 Mbps) Supports 12 types of Flash Card:Compact Flash I/II / Microdrive / Smart Media Card / Memory Stick Memory Stick Pro Memory Stick Duo and Memory Stick Pro Duo / Secure Digital RS-Secure Digital /Multimedia Card and RS-Multimedia Card. View copy and edit the image/photos/data/music directly from the reader. Powered by internal Motherboard connection. Shown as 4 Individual Removable Drives (i.e E: F: G: and H:) Supplied with 5.25” Bay Adaptor. Provides 1x USB 2.0 Port Package Contents Multi-format Card Reader / Writer 5.25\" Drive Bay Adaptor and Screws Connection Cable System Requirements Computer with available USB 2.0 motherboard connection Supports Windows 98se / ME / 2000 / XP/ Vista/ Win 7 MAC OS 10.x(no driver support)