ADT-R27 PCIe 5.0 4.0 x4 to U.2/U.3/E1.S/E3.S Hard Disk Adapter 128Gbps/64Gbps with Bracket Compatible with EDSFF Hard Disk Drive (R27C for E1.S/E3.S)

R27A is suitable for use with U. 2 hard disks. R27B is applicable with U. 3 hard disk. R27C works with E1. S hard disk and E3. S hard disk. R27A, R27B and R27C Do Not compatible with each other, can`t be mixed. U. 2 and U. 3 interfaces look the same but have different pin definitions and cannot be mixed, so please be careful to recognize them.
Speed Bandwidth: PCIe 5.0 / 4.0 x4, Compatible with Gen3/Gen4/Gen5.
Bandwidth: R27A, R27B is PCIe 4.0 x4, R27C is PCIe 5.0 x4.
R27A and R27B Light: D2 light for the power indicator, D1 light for reading and writing light, under normal circumstances, D1 light is always on, D2 light reading and writing state will blink.