Product Description
Cisco High-Speed - Expansion module - HDLC, RS-232, PPP, RS-530, X.21, V.35, RS-449, SLIP, RS-530A - 4 ports - refurbished - for Cisco 1841, 1921 4-pair, 1921 ADSL2+, 19XX, 28XX, 28XX 2-pair, 29XX, 38XX, 39XXOther Details
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