1. Support PCIe 5.0X16 compatible with Gen3, Gen4, and Gen5. 2. The R37C supports external power supply and external power supply protection, effectively avoiding the problem of reverse current and ensuring the safety of power supply to the mainboard. 3. Sole design, perfect for E1.S,E3.S hard disk different structure. 4. Gold finger gold-plated process, gold thickness to 10U. 5. High frequency low resistance high temperature and oxygen PCB board, no deformation color semi-transparent no white no black. Product Models:R37C Product Name:PCIe5.0 x16 to 4C+ Adapter Card Bandwidth:PCIe 5.0 x16 Note:Due to different production batches, the printing silk screen/appearance is different, which does not affect the use. Colour:Black Material:PCB Package Contents: 1 * PCIe5.0 x16 to 4C+ Adapte 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.