Features: 1.Full Speed Signal: This M.2 NVMe SSD adapter card provides PCI E4.0 X16 full speed signal, PCIE 4.0 0 mode, read speed up to 14000+MB/S. 2.Double Side: This PCIE 4.0 X16 adapter card features double sided design, 4 disks extension at the same time. Large turbofan with 2 speed mode ensures more stable transmission. 3.Widely Compatible: This M.2 SATA SSD adapter card supports 4 NVME PCIe and PCI E expansion cards and devices. Suitable for 2230/2242/2260/2280/22110mm SSD(NGFF B key M.2 SATA protocol SSDs are not supported). 4.Stable Interface: This M.2 PCIe adapter card has PCIE X16 interface, support PCIE4.0 high speed transmission protocol, while backward compatible with 3.0/2.0/1.0. Motherboard must support PCIe signal splitting or PCIE RAID function. 5.LED Indicator: This M.2 PCIE4.0 X16 card adopts PCIe power supply. LED indicator lights up when SSD connected, it flashes when reading and writing. specification:Item Type: M.2 NVMe SSD Adapter Card Material: Printed Circuit Board Card Slot: PCIE 4.0 X16 Transmission Rate: 4 x 32Gbps Hard Disks Supported: 4 x M Key Disks Are Supported Application: Suitable for 2230/2242/2260/2280/22110 Mm SSD PackageList:1 x M.2NVMeSSDAdapterCard 1 x Baffle 4 x Nut 5 x Screw 1 x Screwdriver