Supports 4 NVMe M. 2 (2242/2260/2280/22110) up to 256Gbps in one card by utilizing PCle 4.0 bandwidth.; PCIE 4.0 X16 Interface with server-grade (low loss) PCB material, compatible with PCI express x8 and x16 slots.; Support PCIe 4.0, 3.1, 3.0, PCIe 2.0 motherboard.; Supports data transfer up to 2.5G b(250MB/s), 5Gb(500MB/s), 8Gb(1GB/s), 16Gb(2GB/s).; Supports 2230, 2242, 2260, 2280 size NGFF SSD. Supports four NGFF M. 2 M Key socket available.