The IBM 7915 System x3650 M4 Express Model EHU has a E5-2640 v2 (8C) 2.0 GHz processor, 20 MB cache, 8 GB memory, 7.2 GT/s, SAS/SATA HDD interface, 2.5-inch HDD, Open bay, M5110e, 1 x 550W power supply, Multiburner, and U.S. English language support.640v2