... WS-X6196-21AF=Cat6500 96-Port, PoE 802.3af 10/100 - RJ-21 WS-X6148-RJ45V^Catalyst650048-port10/100InlinePower,RJ-45 WS-X6148 ... to Voice, RJ-45 WS-X6148-RJ21V^Catalyst650048-port10/100InlinePowerModule,RJ-21 WS-X6148-RJ-21Catalyst 6500 48- ... 10/100 Upgradable to Voice, RJ-21 WS-X6148-FE-SFPCatalyst 6500 48 port 100Base-X ... 10/100, 48 port (RJ21) line card WS-X6148-21AF=Cat6500 PoE 802.3af 10/100, 48 port ...