Cisco-Linksys POES5 5-volt Power Over Ethernet Splitter Former Linksys Business Series Works with a standard Category 5 Ethernet cable Provides an 802.3af PoE port for connection back to a PoE switch - Designed to fit into the Linksys IP Phone stand (or optional mounting bracket-MB100) - Operates with the SPA901, SPA921, and SPA941 IP Phones