1. Rackmount Fanless system2. ATOM N270 CPU3. Onboard 1GB DDR2 and 1 x SO-DIMM Socket4. 8/16 x RS-232/422/485 with ESD protected5. 3 x RS-232 DB9 connector6. 2 x Giga LAN and 8 x 10/100M LAN7. Compact Flash Type II card8. 3.5" SATA HDD