SpecificationsUSB 3.0 provides speeds up to 10x faster than that of USB 2.0Add four USB 3.0 ports to your computer; 3x External, 1x Internal Type ALow Profile form factor with brackets for Slim and Full size systemsSATA power connection provides up to 900mA per portChip Set NEC UPD720201
Add 4 USB 3.0 ports to your desktop computer with the Aleratec 4 Port USB 3.0 SuperSpeed PCI Express Host Adapter. USB 3.0 provides speeds up to 10x faster than that of USB 2.0. This PCI Express USB 3.0 card enables you to access your data and transfer files much faster than USB 2.0, by adding three external USB 3.0 ports and an internal USB 3.0 port to your PCI Express capable computer. Featuring a Renesas (NEC) PCI Express host controller chipset, the USB 3.0 host adapter supports transfer rates of up to 5Gbps, while still providing connectivity and support for the older HighSpeed USB 2.0 (480Mbps), FullSpeed USB 1.1 (12Mbps) and LowSpeed (1.5Mbps) devices. In addition to providing a much faster transfer rate the Aleratec USB 3.0 host adapter also supplies up to 900mA of power per USB port (500mA for USB 2.0 devices) after connecting your computer power supply, allowing more external devices to operate without the need of an additional power source. Supports Windows 7, Vista, XP and Server 2008.