HP ProLiant DL385 G7 6282SE 64GB-R Hot Plug SATA SFF 750W PS Server. Processor clock speed: 2600 MHz, L2 cache: 16 L3. Number of hard drives supported: None ship standard. Internal memory: 64GB, Internal memory type: PC3-10600R DDR3, Maximum internal memory: 512 GB. Optical drive type: Slimline DVD+R/RW 8X. Power supply type: (2) 750 W 94% efficiency