Features: PCI-E 2.0 standard, VL805, AX88179 high performance chip. Expansion of 3 high-speed USB 3.0 interfaces and a Gigabit network interface. Automatically adapts to 10/100/1000Mbps rate: Supports full-duplex, half-duplex working mode. PCI-E bus interface: Compatible with Gigabit Ethernet card. Supports multiple network operating systems: can provide higher performance than previous PCI network cards, less CPU usage and better compatibility. USB3.0: Transfer rate can reach 5Gbps and backward compatible with USB2.0/1.1. USB3.0 interface provides ultra-powerful 5V900MA power supply - Sufficient and stable power supply. Support hot swap, plug and play - Safer and more convenient. Four-pin power supply - The power supply is sufficient and stable to ensure the stable operation of the equipment. Low power consumption, environmentally friendly and energy-saving products - Low heat and stable operation. Support for systems such as for Windows XP / VISTA / Windows 7. Specifications: Material: ABS color: blue Expansion interface: USB3.0 x3 (external) + Gigabit network interface x1 Applicable interfaces: PCI-E 1x, PCI -E 4x, PCI-E 8x, PCI-E16x Package List: 1*Expansion Card 2*Disk