This PC card offers a 400 Mbps data transfer rate for IEEE 1394 (FireWire) and 480 Mbps data transfer rate for USB 2.0. All downstream ports handle high-speed (480 Mbps), full speed (12 Mbps) and low speed (1.5 Mbps) transactions. There are one 6-pin and one 4-pin IEEE 1394 ports. This Combo cardbus provides both USB 2.0 ports and FireWire ports on a single cardbus. Combining these two high speed connectivity technologies on cardbus saves money and reduce Notebook weight This card allows Plug and Play and hot-swap functions, and works with Windows 2000/ME/XP and Mac OS 10.X systems. Detailed Description: Features: Cardbus USB2.0 Interface Data Transfer Rate up to 480Mbps USB2.0 EHC1 Supports 32-bit Cardbus Type II Slot Fully backward compatible to USB1.1 Supports up to 127 devices Provides two external Type A USB ports and 1 external DC power jack(power cable included) Output currect per port=500mA(max) Windows 98/ME/2000/XP Cardbus 1394 Interface Data Transfer Rate up to 400Mbps Supports 1394A, OHCI 1.0, Rev2.1 Supports up to 63 devices Provides two Firewire ports(one 6pin + one 4pin) + one 6pin <-> 4 pin firewire cable Package Contents: 1 x USB2.0&FIREWIRE Combo Cardbus 1 x USB Power Cord 1 x Driver Disc