ECM21-E Screwless design M.2 PCIe/NVMe SSD to PCIe x4 adapter card SST-ECM21-E Features: Screwless design for M.2 PCIe/NVMe SSD Supports PCIe Gen4 M.2 PCIe/NVMe SSD CLKREQ jump pin header LED indicator for displaying M.2 PCIe/NVMe status Supports 2230, 2242, 2260, and 2280 length M.2 SSD Converts M.2 port (M key) into one PCIe x4 interface Specifications: Model No. SST-ECM21-E Interface PCI Express x4 SSD Interface M.2 (NGFF) Module Key PCI-E x4-based M key LED indicator Power ON: Green Read / Write: Red Net weight 57g Dimension 120mm (W) x 23mm (H) x 104mm (D) 4.72" (W) x 0.91" (H) x 4.09" (D) Support Length of M.2 SSD 30mm, 42mm, 60mm, 80mm