SuperSpeed USB 3.0 supports transfer rates of up to 5 Gbit / s and is backwards compatible with USB2.0 / USB1.1 / USB1.0 (the actual transfer speed is limited by the settings of the connected device).Provides two external USB3.0 ports for direct connection to USB3.0 U hard drives, mobile hard drives and other devices. Built-in SATA 15-pin power supply interface, suitable for most computer case power supplies.Compatible with Windows XP / 2003 / Vista / Win7 / Win8 / Win10 / And above systems etc.The USB3.0 interface provides 5V 2A super power supply as well as sufficient and stable power supply to ensure stable operation of the device. Integrated SATA extended power interface, support for hot swap.It corresponds to the PCI Express specification 2.0, the USB3.0 SuperSpeed specification 1.0 and takes over the third generation NEC master D720201. Supports small computer cases.SATA 15PIN power interface, sufficient and stable power supply for stable operation of the device.Backward compatible with USB 2.0 and 1.1 devices; Support for simultaneous operation of multiple USB 3.0 / 2.0 / 1.1 devicesWith its quick and easy installation, this USB 3.0 PCI Express I / O Card an easy solution for connecting and using USB 3.0 devices on a standard desktop PC.Enjoy copying videos, music, photos and data files between USB devices and computers at amazing speed.The firmware can not only be updated at any time, it can also be updated directly online.Main chip: Renesas UPD720201support interface : PCI-E 1X 4X 8X 16XCompatible with PCI-Express 2.0Compatible with USB 3.0 SuperSpeed Corresponds to the xHCI specification version 1.0The maximum transfer rate is up to 5 Gb it / s, Much higher than 480 Mbit / s from USB 2.0, up to 10 timesBackward compatible with USB2.0, USB1.1, USB1.0 Transfer rate: 5000/480/12 / 1.5 Mbit / sUSB output power: 5 V 2A (maximum)Colour: blackMaterial: ABSSize: 8.5 x 4.9 x 2cmPackage Contents:1 x USB Port Expansion CardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.