Sun Fire X4200 x64 Server: 2x AMD Opteron Model 252 (2.6Ghz/1MB) processor, 4x 512MB PC3200 DDR-400 memory, no HDD, DVD-ROM, 2x PSU, Service Processor, 4x 10/100/1000 Ethernet ports, 4x USB 1.1 ports, 1x 64-bit/133Mhz PCI-X slot, 1x 64-bit/100Mhz PCI-X sl