Arch Memory 120 GB SATA 3 III SSD Solid State Drive Certified for the Dell Inspiron 15R (N5110) Arch Memory is a Registered Trademark of Arch Computer, LLC Capacity: 120GB Form Factor: 2.5-Inch Standard Interface: SATA III (6Gb/s) (backwards compatible with SATA 2.0) NAND Flash: TLC