Rack-Mountable, Max Supported RAM: 2 GB, Supported Processors: Pentium 4, Celeron D, Controller Interface(s): 2 x Serial ATA, Up to 3600 MHz, Bus Speed: 800 MHz, Microphone, Headphones, 6 x USB 2.0, 1 x RS-232 Serial Port, PS/2 Keyboard, PS/2 Mouse, 1 x IEEE 1394a (FireWire)