adopts high performance ASMedia ASM2824 chipset, it is a low latency, low cost and low power consumption Automatically detect channel configuration at Support sub-state deep power- saving Support - function in Hot-swappable, plug-and-play design and wide temperature Supports 4-port x4- M.2 Key-M NVMe SSD devices for M.2 SSD module- size: 2230, 2242, 2260, 2280. Chipset: ASMedia-/ASM2824 Bus type: PCIe3.0X16 Media 4 M.2 M-KEY NVMe SSD Module-size: M.2 Key-M NVMe SSD devices supporting 2230, 2242, 2260, 2280 Compliant with PCI-Express Specification Revision-v3.0 Backward compatible with-PCIe2.0 and PCIe1.0 Support for NVM-Express (NVMe), M.2 Specification Revision 0.9 Supports quad-port M.2 Key-M NVMe SSD devices Support M.2 SSD module- size: 2230, 2242, 2260, 2280 Supports M.2 "M" keys and "B+M" keys PCIe Operating temperature 0-85??C System requirements: 7/ 8/ 8.1/ 10 32 or 64 bit, Linux- 3.17 or available PCI-Express X16 slot Material: PC+Aluminum Alloy Color: As Shown Package Contents: 1 x Expansion card 1 x Bracket (random colors, don't accept the specified color) 4 x Silicone Pad 4 pair x Screw 1 x Screwdriver(The printed words from batch to batch, but not affect the use) 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.