Built without moving components, this OWC Mercury Accelsior SSD (Solid State Drive) renders silent operation and durability. The PCI Express and PCI Express 2 interfaces of this internal drive enable quick and efficient data transfer. For storing digital content and data backup, the Mercury Accelsior model offers 480 GB space. This disk is designed for Mac. The dimensions of this data storage unit are 4.72 inch height, 7.09 inch width, 0.81 inch depth, and its weight is 0.19 lb.