Match the PoE standard to the device you are powering
PoE comes in three IEEE standards, and they are not interchangeable in one direction: a PoE device works on a PoE+ switch, but a PoE++ camera or Wi-Fi 7 access point will not run at full capability on a plain PoE port.
- 802.3af (PoE) — up to 15.4 W per port at the switch. VoIP phones, basic indoor cameras, older access points.
- 802.3at (PoE+) — up to 30 W per port. Pan-tilt-zoom cameras, Wi-Fi 5 and Wi-Fi 6 access points, small displays.
- 802.3bt (PoE++ / 4PPoE) — up to 60 W (Type 3) or 90 W (Type 4). Wi-Fi 7 access points, heated outdoor cameras, thin clients, LED lighting.















