HPE FlexNetwork 5140 24G PoE+ 4SFP+ HI Switch with 1 slot IEEE 802.3at Power over Ethernet (PoE+): Delivers up to 30 W per port, which supports the latest PoE+ devices such as IP phones, wireless access points and security cameras such as every IEEE 802.3af-compliant end devices; eliminates the costs for additional electrical cabling and circuits that are otherwise necessary in IP phone and WLAN deployments. PoE allocation: Supports several methods (automatic, IEEE 802.3af class, LLDP-MED or user-specific) for the allocation of PoE power for more efficient energy savings. At least one power supply is required for operation (not included); two available power supply slots. Includes rackmount kit.