The DeLOCK PCI Express x4 expansion card (MPN: 89517) provides an internal M.2 PCIe socket for NVMe SSDs and an internal SFF-8643 connection for NVMe (U.2) drives. The card uses low-profile support for installation in slim/compact cases and requires an available PCIe x4 (or larger) slot on the motherboard. Designed to add internal NVMe storage to desktops and servers.