About this item CSL PCIe USB 3.0 CARD 5 ext. + 2 Int. Controller interface card (internal USB hub) chip: VIA VL805 + VL813 Suitable for: motherboards with PCIe interface (PCI Express) power supply with free Molex connector required) Connectors: 5x USB 3.0 type A external socket/2x USB 3.0 type A internal female | Interface: PCI-Express 1x | SATA 15 pins | backward compatible with USB 2.0 and USB 1.1 | Chipset: VIA VL805 single chip USB 3.0 host controller / VL812 USB 3.0 hub Controller | Maximum USB transmission Rate: USB Super Speed (5Gbps), High Speed (480Mbps), Full Speed (12Mbps) Operating system compatibility: Microsoft Windows 11 (32/64bit), Windows 10 (32/64bit), Windows 8.1 (32/64bit), Windows 8 (32/64bit), Microsoft Windows 7 (32/64bit), Windows Vista (32/64bit), Windows XP (32/64bit) | Weight: 61g (1) 4bit) G with Packaging and accessories ies) | Dimensions: 2.2 x 12 x 8.1 cm (W x L x D) Features: low power consumption, plug & play, box contents: SATA power cable to 2x SATA/M