Cisco 3600 Series CISCO3640 4-Slot Modular Access 10/100 Networking Multifunction Router 47-3204-02.
Model Number: CISCO3640
Cisco Part Number: 47-3204-02
Includes:
1x 800-03490-02 Fast Ethernet 1FE-TX Module
1x PRI-2CT1-CSU 2-Port Channelized T1 PRI Module
1x 20MB Flash Card