Power Over Ethernet Adapters
Power Over Ethernet Adapters covers injectors that add power to an Ethernet cable: HPE 15.4W 802.3af injectors for Aruba Instant On access points, 30W Smart Rate injectors for the AP-303, single-port Aruba injectors, StarTech PoE+ wall-mount units, and Black Box's 8-port 802.3at midspan. An injector lets you power a phone, camera or access point from a switch that has no PoE.
- 80 parts
- Free U.S. ground shipping on in-stock parts
Power Over Ethernet Adapters: 80 products
Buying guide
Sizing a PoE injector
Standard and wattage
802.3af supplies up to 15.4W per port, 802.3at (PoE+) up to 30W, and 802.3bt more. Match or exceed what the device draws.
Data speed
Gigabit injectors pass full gigabit data. Multi-gigabit access points need an injector rated for their speed, like Smart Rate models.
Single or multi-port
Single-port injectors suit one device; multi-port midspans power several devices from one unit in a rack.
Power Over Ethernet Adapters
Frequently asked questions
Can I use a PoE+ injector with an 802.3af device?
Yes. A standards-based PoE+ injector supplies only what the device requests, so 802.3af devices run normally.
Do I need a PoE injector if my switch has PoE?
Only if the switch can't supply enough power, either per port or across its total budget, for the device you're adding.












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