Cisco 29003900 Router Single Service Module Slot BlankCover SM-BLANK

This Cisco 2900/3900 Router Single Service Module Slot Blank/Cover is specifically constructed to fill any and all open slots. This allows your router to improve airflow and run better for a longer period of time. Not to mention, it makes your router look a little more attractive. This Cisco accessory is compatible with a variety of models. Compatable with: Cisco 2901, 2911, 2921, 2951, 3925, 3925E, 3945, 3945E