Features: brand new and high quality It is indeformable, plug for play very convenient to use with heat dissipation function.which is practical. High-speed transmission and stable output, the expansion card has high performance. Made of plastic and metal, the expansion card is durable to use. Double-sided 4-disk expansion at the same for time ;for 2242/2260/2280/22110 SSD The expansion card supports SSD/ for M.2 PCI-E device with for M.2 NVME protocol. Specifications: Item: Double-sided Mini PCIEX16 To for M.2 M-key NVMEx4 SSD for RAID Expansion Card Model: PH44PRO Transmission Rate: 4 x 32Gbps Material:Plastic, Metal Support Hard Drive: SSD/ for M.2 PCI-E Device with for M.2 NVME Protocol Size:approx 167x57mm/6.57x2.24in Note: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures. Please allow slight dimension difference due to the manual measurement. The product can run 4 NVME at the same for time, but motherboard must support PCIE signal splitting. The green indicator light will flash when the product is reading. Package includes: 1 x Expansion Card 4 x Copper Studs (for Middle Baffle) 4 x Fixing Screws(for Hard Drive) 1 x Screwdriver 1 x Chassis Screw 1 x Full Height for Case Baffle 1 x Half Height for Case Baffle