ASUS RS163-E4/RX4 Dual Processor Server System, 2.2 GHz, DDR2-SDRAM, 0 GB, Serial ATA II, Rack (1U) ASUS RS163-E4/RX4 Dual Processor Server System. Processor family: AMD Opteron, Processor frequency: 2.2 GHz. Internal memory type: DDR2-SDRAM. Total storage capacity: 0 GB, HDD interface: Serial ATA II. Redundant power supply (RPS) support. Chassis type: Rack (1U)