EC412 is a PCI Express expansion card designed to add NGFF M.2 devices such as SSD onto existing PC motherboard. Dual M.2 slots support both PCI-E based M.2 device (M key, NVMe) to run via the faster PCI-E interface at up to 32Gbps, and legacy SATA based M.2 slot (B key) for connecting to a SATA III port. Features Connects one M.2 port (M key) into one PCI-E x4 interface Connects a second M.2 port (B key) into SATA 6G interface Supports two M.2 SSD simultaneously Supports PCI-E interface (M key) at up to 32Gbps Supports SATA interface (B key) at up to 6Gbps No driver installation required Specifications Interface: PCI Express X4 / SATA 6Gbps SSD Interface: M.2(NGFF) Module Key: B key (SATA-based), M key (PCI-E 4X-based, NVMe) Number of Drives: 2 Supported Type M.2 SSD: 2230, 2242, 2260 and 2280 Supported Length of M.2 SSD: 30mm, 42mm, 60mm, 80mm Important Note M key M.2 is for use with PCI-E (NVMe) SSD only, B key M.2 is for use with SATA SSD only. B key M.2 SSD requires SATA 7 pin cable connected to motherboard to function. NVMe M.2 SSD requires the use of Intel 9 series (Z97 H97 Z170 X99) or higher version chipset based motherboard with Windows 8 or higher operating system. It’s recommended to update your motherboard’s driver and BIOS to the latest version before install the Expansion Card. Package Contents 1x PCI Express Expansion Card 2x Mounting Screws 1x SATA Cable