1. Supports full-speed transmission of PCIe 5.0 x4 and is compatible with for Gen3/Gen4/Gen5 2. It supports external power supply and has external power supply protection, effectively avoiding reverse current issues and ensuring the safety of the motherboard's power supply 3. The base plate is exclusively designed to perfectly adapt to the different structures of E1.S and E3.S hard disks 4. The gold finger is gold-plated with thickness of up to 10U 5. High-frequency, low-resistance, high-temperature and oxygen- PCB board, which does not deform, has a yellowish crystal semi-transparent color, does not turn white or black Product Name: PCIe x16 to 4-Port E1.S/E3.S(SFF-TA-1002) SSD split adapter expansion card Speed bandwidth: PCIe 5.0 x16 4x128Gbps Color: Black Material: PCB Package Contents: 2 x PCIe x16 to 4-Port E1.S/E3.S(SFF-TA-1002)SSD Split Expansion Card 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.