Sedna 2 Port NGFF M.2 B + M Key SSD to PCI-E PCI Express 4X 4 Lane Adapter with low profile bracket Connects one B key & one M key NGFF SSD at the same time to PCI-E 4X motherboard. Compliant with PCI Express M.2 specification 1.0 Compliant with SATA 3.0 specification for B key Supports 2230, 2242, 2260 & 2280 size NGFF SSD Easy installation & no driver required