PCIe 5.0 56Gbps UltraFast Compliant with PCIe Gen5 (PAM4), up to 56Gbps bandwidth; backward compatible with Gen4/Gen3.; MCIO 4X 38Pin SFFTA1016 Standard Mini Cool Edge IO (MCIO) 4i 38Pin connector, maletomale for direct extension.; 0.5M Industrial Grade 0.5 m slim flexible twinax cable, ideal for server chassis internal routing and highdensity storage.; MultiProtocol Support Works with PCIe 5.0 / 4.0 / 3.0, SAS 3.0 / 4.0, 25G Ethernet; for NVMe SSD, RAID/HBA, backplane connection.; Stable Signal & Build 85ohm impedance, full shielding, low signal loss; robust connector for data center/enterprise NAS use.