the Quick Specs of the CISCO3925/K9.

Product Code   CISCO3925/K9

Services Performance Engine module    w/SPE 100

Rack Units       3U

Interfaces    3 integrated 10/100/1000 Ethernet ports with 2 ports capable of RJ-45 or SFP connectivity

Expansion Slot(s)     2 service module slots
                                  1 Internal Services Module slot
                                  4 onboard digital signal processor (DSP) slots
                                  4 Enhanced High-Speed WAN Interface Card (EHWIC) slots

RAM                                1 GB (installed) / 2 GB (max)

Flash Memory                256 MB (installed) / 8 GB (max)

Dimensions                    47.6 cm x 43.8 cm x 13.3 cm

Package Weight                 27.78 Kg