1. Chip: 720101F1 (BGA) 2. Supports PCI 32-bit bus, bus speed is 33MHz, PCI standard version 2.2 3. Supports PCI bus master channel 4. Compatible. Plug and play. 5. USB2.0 Interface: Complies with Universal Serial Bus (USB) specification revision 2.0, complies with Enhanced Controller Interface (EHCI) specification revision 1.0, compatible with Universal Controller Interface (UHCI) specification revision 1.1, backward compatible with USB1.1 specification. Data Transfer Rate: High-speed 480Mbps (theoretical value), Full-speed 12Mbps, Low-speed 1.5Mbps; Supports connection of up to 127 USB devices simultaneously for each USB interface; External Port: USBx4, Internal Port: USB-A/Pinx1 System Requirements: At least one available 32-bit PCI slot on your personal computer; Supported: Windows98SE//2000/XP/NT 4.0/XP 64-bit/Vista, Linux, Color: Black Material: PCB+Metal Package Contents: 1 x USB2.0 Expansion Card (Only the above package content is included; other products are not.) Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real item. The allowed measurement error is +/- 1-3 cm.