Interfaces : Two (2) Ethernet, One (1) USB, Two (2) AIM Slots, Four (4) Interface Card Slots, Console and Auxiliary Ports Flash Memory : 64 MB up to 128 MB RAM : 128 MB up to 384 MB Processor : N/A Operating System or IOS Version : Minimum 12.3(8)T PSU : 110 to 220 VAC, 150W Dimensions : 44.5 x 41.9 x 4.3 cm Weight : 6.2 kg