Standards: USB 2.0 Data Rates: 480/12/1.5 Mbps USB: 4 x USB 2.0 Interface: 32-bit CardBus Type II Operating Systems Supported: Windows 98SE/Me/2000/XP System Requirements: Computer with one PC Card slot MS Windows 98SE/Me/2000/XP Features: Four USB type A connector USB 2.0 specification compliant Open Host Controller Interface specification for USB Rev 1.0a compliant Enhanced Host Controller Interface specification for USB Rev 0.95 compliant Data transfer rate: High speed 480Mbps, Full speed 12Mbps and Low speed 1.5Mbps External 12VDC DC jack for high current consumption