1. Fifth generation FFC flat cable design with full shielding, soft and durable, ultra-thin thickness of only 0.5mm 2. Reinforced with 1.5mm aluminum alloy gasket to prevent disconnection and disconnection problems, strong and durable, can effectively block interference and noise 3. Connect to 12V power supply, send SATA power adapter 4. Add 0.8mm fixing plate to prevent PCB board deformation and bending, which can extend the service life of PCB board and save hardware replacement cost 5. Four-layer PCB board, gold finger fully gold-plated 10µ, good conductivity, can reduce the blue screen problem caused by oxidation and rust impedance Four-layer PCB board, advanced design, exquisite craftsmanship, stable and fast signal, excellent wiring, good isolation, high-frequency impedance board can reach PCIe 4.0 standard Type:F47SF M.2 NVMe to U.2 SSD Extension Cable PCIe 5.0 X4 SFF-8639 NOTE:Dimensions refer to wire length. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Size:25cm/50cm Color:Black Material:PCB Package Contents: 1 * Extension cable 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.