Cisco HWIC-1GE-SFP=

GigE high speed WIC with one SFP slot

Supported on Cisco 1921, 1921 4-pair, 1921 ADSL2+, 1941, 2811, 2821, 2851, 2901, 2911, 2921, 2951, 3825, 3845, 3925, 3925E, 3945, 3945E