Cisco Catalyst 6500 Series 48-Port 10/100 RJ-45 Classic Interface Module; field-upgradable to support 802.3af PoE daughter card (part number WS-F6K-GE48-AF=)
Cisco Catalyst 6500 Series 48-Port 10/100 RJ-45 Classic Interface Module with Cisco Prestandard PoE Daughter Card (that is, includes daughter card [part number WS-F6K-VPWR=])
Cisco Catalyst 6500 Series 48-Port 10/100 RJ-21 Classic Interface Module; upgradable to support Cisco Prestandard PoE Daughter Card (part number WS-F6K-VPWR=) or to IEEE 802.3af PoE daughter card (part number WS-X6148-21AF-UG=)
Cisco Catalyst 6500 Series 48-Port 10/100 RJ-21 Classic Interface Module with Cisco Prestandard PoE Daughter Card (that is, includes daughter card [part number WS-F6K-VPWR=])