1. Wire advantages: high frequency support PCIe 3.0 X16 8G/ stable transfer. 2.Cable length:25cm, our wire has a low impedance, 25cm cable can be stable at PCIe3.0 reading and writing. 3.Differential signal without hole design, there is no problem of signal attenuation interference in a parasitic capacitance and parasitic inductance, there will be no more CAF Mini short circuit, cable is durability. 4.PCB use high frequency low resistance of materials with high quality, PCB using high board, copper thickness thicken to 1oz, gold finger plating enough gold, Good conductive performance, can reduce oxidize higher impedance caused by the crash blue screen. 5.Suitable graphics card: for GTX1080ti High-end graphics CARDS, fireprow7100, radeon RX580, VEGA64, prowx5100, quadroK1200 professional graphics card, support for all the PCIe CARDS after 2015 years.Note: This product does not support external notebook graphics!Our all cables doesn't support the machine with 2x CPUs. Colour:black Material:PCB Size:Length: 25cm Package Contents: 1 * Extension Cable Only 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.