68Pin SFF-8639 U. 2 male to female straight extension, transmits full native PCIe NVMe signals without bandwidth loss; 50cm flexible cable length for rearranging U. 2 SSD position inside servers, workstations and custom chassis; Compatible with PCIe 3.0 / 4.0, stable high-speed low-latency transmission for mass data workloads; Multi-layer EMI twinax shielding eliminates electromagnetic crosstalk, supports 24/7 continuous heavy load; Gold-plated latch connectors anti-vibration and anti-oxidation, firm connection for long-term rack deployment