SF = splint type, SF: PCIe connector and PCB board flat and straight splint 180 degrees     Adapted graphics card: for GTX1080ti, GTX2080ti, RX5700xt, RTX3060 supports all PCIe graphics cards in the last three years     Bandwidth speed: PCIe 3.0 x16 (gen3, 128G.s) does not support PCIE4.0, please reduce the speed to use     Adopt advanced EMI shielding conductive polymer, new materials for EMI shielding, flat cable design. This technology allows each cable to be completely covered by the electromagnetic interference shielding of conductive polymer to prevent the incidence or emission of electromagnetic frequencies, minimize interference and performance degradation, and reduce the weight of the extender     Note: Be sure to recognize the direction when inserting the cable, do not insert it backwards or insert it in a wrong position to prevent the device from being burned. When inserting the cable, first hold the socket of the device before inserting the cable, avoiding excessive force to insert the socket pin. It is forbidden to bend or pull within 2cm of the welding place between the two ends of the wire and the circuit board.          The signal driving ability of various motherboards and equipment is different. The test results of our store are not to be consistent with your test results. As long as the extension cable is connected, There will be some loss of signal     The graphics card or motherboard is an electronic device that will age and oxidize over time. Connecting an extension cord will only make it more unstable. Old devices are not supported.     Dual CPU motherboard, server motherboard does not support, please do not buy.     Colour: black     Material: PCB     Size: Length: 25cm          Package Contents:     1 * Extension Cable          Only the above package content, other products are not included.     Note: Light shooting 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.