Wire advantage, using imported wire, using imported High quality connector, high frequency support PCIe 3.0 stable transfer.The differential signal has no via design, there is no signal attenuation interference problem of parasitic capacitance and parasitic inductance, and there is no CAF -short circuit, and the product is durable.The product uses high-quality materials, PCB workmanship precision, copper thickness is thickened to 1oz, gold finger gold content is sufficient, gold-plated foot has good electrical conductivity, which can reduce the blue screen of the crash caused by the increase of oxidation and rust resistance. The signal transmission is stable at full speed and there is no compatibility problem.The cable used in the product itself is very durable. It is protected by a PCB gasket with a thickness of 3mm at the metal welding point, and is fastened with screws and hex nuts. The product is strong and reliable, resistant to pulling, anti-interference, and will not be broken. The nail problem. The wire can be bent and folded without affecting the use.PCB dwarf and fat design, dwarf will not get stuck to the Image card, add fat and long design to make the board easier to install, reducing the chance of damage.Product Name: PCI-E 4.0 Dual Reverse Graphics Card Extension CableAdapter graphics card: RTX3090 RX6800xt, support PCIE4.0 graphics cardSpeed Bandwidth: PCIe 4.0 x16Usage restrictions: PCIe4.0 has high requirements for equipment. As long as the extension cable is connected, the signal will be attenuated. This product does not guarantee the full speed of PCIe4.0. If the equipment is aging, the signal is poor or the environment is not good, please use it at a reduced speed.Use limitation: Only for ITX motherboard and its compatible mini-chassis installation and use. Graphics cards or motherboards older than four years are not supported.Colour:blackMaterial:PCB+MetalPackage Contents:1 * Image card extension cableOnly 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.