Features:100% brand new and high quality4 Slots brings great extendability, good electrical conductivity, improve data transmission efficiency.High-quality PCB board, high temperature resistance, can be used for a long time.Plugs directly to the board without any extender cable, can be fixed to the case.The plug-in card design can be directly connected to the motherboard interface without an extension cable, and can be connected to the chassis, which significantly improves the stability and reliability.Effectively solve the problem of insufficient pci-e interfaces on the motherboard, one interface can be expanded to 4.Package Includes:1 x PCI-E 1 to 4 Riser CardSpecifications:Bus Port: PCI-EInterface Type: PCI-E 1X to 4-port USB 3.0Applicable Card Slot: PCI-E X1/X4/X8/X16Size: approx 120x81x61mm/4.72x3.18x2.4inWeight: approx. 48gSupported OS: DOS,Linux Windows XP/7/8/10note:There may be slight size deviations due to manual measurement, different measuring methods and tools.The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.