VWIC3-1MFT-T1/E1

Cisco Third-Generation Multiflex Trunk Voice/WAN Interface Card – Expansion module – EHWIC – T1/E1 x 1 – T-1/E-1 – for Cisco 1921, 1921 4-pair, 1921 ADSL2+, 1921 T1, 1941, 2901, 2911, 2921, 2951, 3925, 3945