The ToughArmor MB720M2K-B is the world's first quad M.2 NVMe ruggedized removable enclosure. With our enclosure, your NVMe SSD no longer requires to be installed on to the motherboard or even a riser card which is typically held on with a tiny screw. Now it could be installed and accessed from the comfort of the frontal bay of the computer. In addition, it comes with our patent-pending M.2 adjustable drive locker which can easily place your drive without any tools or screws. The MB720M2K-B is designed to house up to 4x M.2 PCIe NVMe SSD, supporting blazing fast PCIe x4 transfer speed over 32Gbps via MiniSAS HD (SFF-8643). Our specialized drive tray accepts all standard M.2 drives length from 30mm to 110mm (2230, 2242, 2260, 2280, & 22110). As M.2 drives are notorious for reach high temperatures, each drive tray is equipped with a high efficiency aluminum heat sink to ensure your drives remains within optimal temperatures even under heavy load. As it is part of the ToughArmor Series, the enclosure and trays are made of metal to ensure the maximum protection against your drives and with an included barrel key lock, it prevents any unauthorized physical access.