PCI-E PCIe 1 To 4 PCI Express PCI E 16X Slot Riser Card Riser Card Description: The efficient solution of the motherboard's PCI-E interface is not enough, the interface can be extended by 4 usb30 ports The use of plug-in design, no extension cable directly to the motherboard interface, and can be attached to the chassis, greatly improved the stability and reliability! The main control board adopts the PCI-E interface direct power supply mode, no need for an external power cord, so that the main control board is powered by external interference, higher stability! Reduce the number of adapters and adapter cables, line directly to the interface, effectively reduce interface interference and wire loss, to ensure data reliability, thereby improving work efficiency Specification: Interface type: PCIE 1X to 4 USB Bus type: PCI-Express X1 Suitable slot: PCI-E X1, X4, X8, X16 Transmission speed: 5 Gb / s Application: for mining Support system: for Linux, Windows XP/7/8/10 Weight: 70g Size: 120 x 67 x 57mm / 4.7 x 2.6 x 2.2 inches Package includes: 1 x PCI-Express riser card