Features: Transmission speed: Theoretical speed can support 4 * 32Gbps Splitting requirements: It needs to be split and only supports motherboards that can split PCIE X16 channels. Motherboards without PCIE signal splitting can only recognize the first disk Product advantage: With 4 hard drive slots on one side, a total of 4 NVMe solid-state drives can be installed for self powering. It is equipped with multiple sets of high-power DC modules for sustainable and stable operation. Installation is simple and does not increase the width of X16 card slots, which does not affect the normal installation of adjacent graphics cards. All aluminum alloy material aluminum sheets, combined with thermal conductive silicone grease sheets, can effectively assist the hard drive in fast heat dissipation Specifications: Product Name: PCIE X16 Four Disk NVMe Expansion Card+Half Pack Cooling Aluminum Sheet SSD hard drives supporting M.2NVMe protocol Note: Not all motherboards support it. Please confirm if your motherboard can split the PGE channel Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Material: PCB colour: As shown Package Contents: 1 x Half pack of heat sink aluminum flakes 1 x expansion card 1 x full height baffle 1 x accessory package 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.