1. can be matched with BK7 bracket, graphics card extension more robust. 2. UL certified wire, the 5th generation FFC flat cable design full coverage shield, ultra-thin thickness of only 1.0mm. 3. UL certified PCB board, gold finger gold-plated 10µ inch, good electrical conductivity, can reduce oxidation rust impedance caused by the blue screen of death problem. 4. the connector shell material is PA10T/LCP, the terminal gold-plated 15µ inch . 5. four-layer PCB board, advanced design, exquisite technology, stable signal quality, excellent wiring, good isolation, up to PCIe 4.0 standards, to meet a variety of needs. Product Model: F36B-F37B Product name: PCIe 4.0 X16 MCIO split extension cable Speed bandwidth: PCIe 4.0x16, gen4 256G/bps, backward compatible with gen3 gen2 Wire length: 50cm Wire length description: The wire length of this product refers to the length of the MCIO wire. This PCIe adapter cable can be freely split, support motherboard Bifurcation PCIE supports one tow, one tow two, flexible design, widely used. Color:Black Material:PCB+Plastic+Metal Package Contents: 1 * F36B adapter card 1 * F37B adapter card 2 * 50cm cables Only the above package content, other products are not included. Note: Light reflection 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.