The all-new HP ProLiant BL685c G5 server blade, delivers no-compromise performance and expansion in the most dense 4P server blade available. With up to four AMD Opteron 8000 Series processors, 64GB of DDR2 memory, two hot plug Serial Attached SCSI (SAS) or Serial ATA (SATA) hard drives, four embedded Gigabit NICs and three I/O expansion slots, the HP ProLiant BL685c delivers the density you want with the performance you need to handle the most demanding enterprise class applications.