PCle 3.0 X16 four-channel expansion card, 4-channel SFF8654-8i inside. The main control PLX8749 chip provides high bandwidth and low latency transmission capabilities to meet high-speed data interaction and high-performance computing. Supports up to 8 devices for expansion and can be configured with x16/x8/x4 multiple bus modes. The built-in DMA engine ensures the reliability and stability of data transmission. Multiple mode switching to meet different needs. Parameters: Controller chip: PEX8749 Power consumption (MAX): 15W Port type: 4*SFF 8654 PCLE bus: PCle 3.0 X16 Port rate: PCle 3.0 X8 Power supply: PCle power supply Port mode: X16, X8X8, X4X4X4X4 Number of devices: MAX 8 Device type: U.2SSD, PCLE network card, graphics card Bar: full height X1, half height X1 Line sequence specification:A-B line Color:Green Material:PCB+Metal Package Contents: 1 * PCIe 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.