1. Wire advantages: using German patent imported wire, using Lotes connectors imported from Taiwan, PCIe 3.0x4 32G/bps high frequency stable transfer. 2. Differential signal without hole design, there is no problem of signal attenuation interference in parasitic capacitance and parasitic inductance, there will be no more AFC micro-short circuit, the cable is sustainability. 3. PCB uses high frequency low resistance of high quality materials, PCB using high TG board, copper thickness thickened to 1 oz, sufficient gold finger plating, good conductive performance, can reduce oxidation of higher impedance caused by blue screen crash. 4. Description of wire length: Wire length refers to the part of the wire that is visible. It does not include PCB and connector. 5. Note: This product does not support external laptops. (We highly recommend using it for desktop computers. The success rate of laptops is low due to incompatibility, especially for HP, for Dell, for Lenovo. There is also a risk of burning the 'laptop.) Specifications: Product model: R42SF Product name: PCI-E adapter card extension cable Bandwidth speed: PCIe 3.0x4 gen3; 32G/bps Applicable card: high-speed network card, capture card, NVMe SSD hard disk card, USB adapter card, support PCI-E x4 interface. Color: black Material: PCB Size: cable length is about 10cm (cable length is not total length, not included connectors and PCB on both ends) Package Contents: 1*M.2 NVMe to PCI-Express x4 Extension Cable 1 * SATA 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 allowable measurement error is +/- 1-3 cm.