PCle smart chip High performance, scalability, and high reliability Provides high bandwidth and low latency transmission capabilities to meet high-speed data interaction and high-performance computing supports up to 8 devices can be expanded and can be configured in x16/x8/x4 bus modes; built-in DMA The dip switch can adjust the bandwidth mode of four SFF8654-81 interfaces Can connect graphics card/network card/U2 hard drive/M2 hard drive and other devices, but not compatible with hard drive Controller:PEX 8749 Power consumption(MAX):15W Port type:4*SFF 8654 PCLE bus:PCIe 3.0 X16 port speed:PCIe 3.0 X8 Power supply:PCIe powered port mode:X16,X8X8,X4X4X4X4 Number of devices:MAX 8 Device type:U.2 SSD, PCLE network card, graphics card Color:As Shown Material:PCB Package Contents: 1 * PCIe 3.0 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.