1.8 port usb 3.0 hub with port Backward compatible with USB 2.0/USB 1.1/USB 1.0 2.Connect up to 7 USB 3.0 devices 3.Fit any 5.25inch computer case front bay Super Speed USB 3.0 supports up to 5 Gbps of band width 4.Support variety of USB devices including scanners, printers, digital cameras, camcorders, speakers, mice, keyboards, external drives, MP3 players and more. Support System: Compatible with all systems, LINUX Product use: With the popularity of USB3.0, more and more motherboards now have a USB3.0 19pin socket, the chassis does not have a front USB3.0 port, you can use this panel, as long as through the panel A 19PIN socket is plugged into the mainboard, which leads to 8 front USB3.0 ports and is installed in an idle optical drive. USB3.0 adds SATA to enhance power and can provide enough current for 8 high-speed USB interfaces, solving the problem of insufficient power supply for the front chassis. Hardware requirements: With two USB3.0 20Pin interface boards or adapters, with a 5.25-inch optical drive chassis. Note: This product can transfer 8 USB 3.0 as long as one 19PIN Material: Metal + ABS colour: Black + blue Package Contents: 3 x drive panel 3 x 19PIN-AM line 15 x fixing screws 3 cord Only the above package content, other products are not included. Note: Light reflection 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.