Sorry, the SilverStone ECM21 M.2 (M key) to PCI-E x4 Adapter Card is no longer available

SilverStone's ECM20 is an adapter designed for users wanting to utilize or add speedy M.2 devices such as SSD onto their existing PC or motherboard. In addition to supporting one M.2 device (M key) to run via the super fast PCI-E interface at up to 32Gbps, a second M.2 slot (B key) is available for connecting to a SATA III port for added storage potential ECM20's 'M' key is for use only with PCI-E NVMe SSD, 'B' key is for use with only SATA SSD

Converts one M.2 port (M key) into one PCIe x 4 interface
Only 31mm tall when installed, easily fits in 1U chassis
Built-in LED indicator for showing PCIe NVMe status
Supports 2230, 2242, 2260, 2280, 22110 length M.2 SSD
PCIe CLKREQ function (V2.0)