Effectively solve the lack of PCI-E interface on the motherboard, and one interface can be expanded to 4;The plug-in design is adopted, which can be directly connected to the motherboard interface without an extension cable, and can be fixed to the chassis, greatly improving the stability and reliability The main control board adopts the PCI-E interface direct power supply mode, no need to connect an external power cord, so that the power of the main control board is not disturbed by the outside world, and the stability is higher Reduce the number of adapters and adapter wires, one wire directly to the interface, effectively reduce interface interference and wire loss, ensure data reliability, and improve work efficiencyGold-plated USB connectors reduce -interface interference and enhance data integrityProduct name: PGI-E one-turn four-expansion cardModel: PCE4USB-A01Bus interface: PCI-E X1 (compatible with X4, X8, X16/graphics card interface)Number of interfaces: PCIE USB interface*4Product size: 12x5.5x7.5CMSystem support: D0S. LINUX, WNXP, WN7, WN8, WN10, etc.Material:PCB+Metal+Plasticcolour:blackPackage Contents:6 * USB 3.0 riser cardOnly the above package content, other products are not included.Note: Light 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.