ECM25-V2, Expansion Cards UPC: 844761024918 Brand: SilverStone Country of Origin: US Converts one M.2 port (M key) into one PCIe x 4 interface Only 32mm tall when installed, easily fits in 1U chassis Built-in LED indicator for showing PCIe NVMe status Supports 2230,2242,2260 and 2280 length M.2 SSD PCIe CLKREQ function (V2.0)