Specification: Product name: PCI-E to 3-port external USB 3.0 + RJ45 Gigabit Ethernet network expansion card Color: Blue Chipset: VL805 + AX88179 Power supply interface: Big 4Pin Interface: 3 * External USB 3.0, 1 * Gigabit Ethernet Compatible motherboard slots: PCI-E 1X, PCI-E 4X, PCI-E 8X, PCI-E16X Transfer data speed: USB 3.0 interface: USB 3.0 5Gbps, USB2.0 480Mbps Ethernet interface: 10/100/1000Mbps Hot swap: Yes Power Interface: Big 4Pin Operating system: for Windows XP/ VISTA, for Windows 7/ 8 and more Item size: 11.9 * 8 * 1.8cm / 4.7 * 3.1 * 0.7in(L * W * H) Item weight: Approx. 65g / 2.3oz Package size: 14 * 10 * 3cm / 5.5 * 3.9 * 1.2in(L * W * H) Package weight: 99g / 3.5oz With quick and easy installation, this combo-card is designed to support simultaneous operation of multiple USB and network connections on your standard desktop PC. A single versatile PCIe card combined with 3 USB 3.0 and 1 RJ45 Gigabit interfaces features most convenient and cost-savings for building or upgrading your computer. Extending USB 3.0 boasts high speed transfer rates of up to 5 Gbps, which means you can copy videos, music, photos, data files between USB devices and the computer at blazing fast speeds. Functioning as a network adapter, this card provides wired network access in the positions where WiFi is unavailable or with a poor signal. This expansion card is environmentally friendly and energy-saving with low heat emission, which ensures stable operation. Features: Strictly conform to PCI-E XPRES specification version 2.0 with advanced NEC Vli VL805 and axis AX88179 chipsets, high performance. Instantly expand 3 rapid fast USB 3.0 interfaces and 1 Gigabit network interface, PCI-E bus interface is fully compliant with Gigabit Ethernet card. Intelligently adapt to 10 /100 /1000Mbps transfer rates, both full duplex and half duplex operation modes supported. High speed USB 3.0 supports transfer rates up to 5 Gbps, compatible with original USB system, peripherals and cables, backward compatible with USB 2.0 /1.1. Superior quality welding process, exquisite materials with fine workmanship, security and stability in data transmission. Easy installation, fully plug and play, support hot swapping, convenient and efficient. USB interface can offer +5V /900mA current for external devices' power supply, big 4Pin power interface can also supply power for devices, ensuring sufficient power supply. Works greatly for Windows 7 / 8, for VISTA, for Windows XP and more. Compatible with computer motherboard interfaces with PCI-E slot, includes PCI-E 1X, PCI-E 4X, PCI-E 8X, PCI-E 16X.