ITEM NAME:Pcie Express 1x to 4-port USB3.0 Extender Riser Card Adapter Mining Card Description: - PCI-E X1 to PCI-E X16 expansion card, stability, high compatibility, high-speed transmission - Effective solution to the motherboard PCI-E interface is not enough, an interface can be extended out of four interfaces - The use of plug-in design, without access to the motherboard directly through the extension line interface, and can be fixed to the chassis, the stability greatly improved - The main control board uses PCI-E interface direct power supply, no need to connect the power cord, so that the main control board power from external interference - Effectively reduce interface interference and wire loss, to ensure data reliability, thereby enhancing work efficiency Specification: - PCI-E a turn four expansion card - Bus Interface: PCI-E X1 (compatible with X4, X8, X16 / graphics interface) - Number of interfaces: PCIE_USB interface x4 - System Support: DOS, LINUX, WINXP, WIN7, WIN8, WIN10 Package Included: 1x Adapter Card.Bus Interface: PCI-E X1 (compatible with X4, X8, X16 / graphics interface). - Effective solution to the motherboard PCI-E interface is not enough, an interface can be extended out of four interfaces.