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Cisco High-Speed 4-Port ISDN BRI S/T - Voice / fax module - HWIC - ISDN BRI ST - digital ports: 4 - for 1841, 1841 3G, 1841 ADSL2, 1921 4-pair, 1921 ADSL2+, 19XX, 28XX, 29XX, 38XX, 39XX (HWIC-4B-S/T)

Mfr. Part # HWIC-4B-S/T
Item # 7559977
Availability: Temporarily out of stock. Order today and we'll deliver when available. (?)
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