USB 2.0 CardBus PC Card 4Ports Features PC Card 32 bit CardBus fully compliant 1.3 mm DC power jack for 5V DC Power Input Compliant with Universal Serial Bus Specification Revision 2.0 (Data Rate 1.5/ 12/ 480 Mbps) Compliant with Open Host Controller Interface Specification for USB Rev 1.0a Compliant with Enhanced Host Controller Interface Specification for USB Rev 0.95 All USB ports can handle high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) transaction