PoE injectors for Wi-Fi access points: af, at, bt and 2.5GbE

Your new access point has an Ethernet socket and nowhere to plug in a power brick. Good: you can put it where Wi-Fi works best, rather than where a spare outlet happens to be. Add one PoE injector between your switch and AP. Choose POE160S for gigabit, POE260S for 2.5GbE, or TPE-119GI when you genuinely need high-power 802.3bt and gigabit data is enough.

Specs and installation guidance from the makers, checked November 1, 2026; this is a research-based guide.

Buy power and data speed separately

Two labels decide the purchase: the AP’s PoE standard and its Ethernet port speed. “PoE++” describes power; it doesn’t mean 2.5GbE. A powerful gigabit injector can still become the narrowest part of a multi-gigabit link.

Pick	Ethernet data path	Supported PoE standards	Maker-rated maximum output	Choose it for
TP-Link Omada POE160S	1 GbE	802.3af / at	30 W	One gigabit AP
TP-Link Omada POE260S	2.5 GbE	802.3af / at	30 W	One multi-gigabit AP
TRENDnet TPE-119GI V2	1 GbE	802.3af / at / bt	95 W	A higher-power device on a gigabit link

These are source-output ratings: cable losses reduce the watts available at the device. For example, Type 2 PoE+ pairs a 30 W source rating with a 25.5 W device-power budget. Match the AP’s specified standard and power requirement, rather than comparing its consumption with the biggest number on an injector. Ubiquiti’s PoE guide explains the power classes.

For the AP itself, use our Omada versus UniFi access-point guide. This page supplies the missing power piece.

POE160S: one gigabit AP, neatly powered

Choose POE160S when the AP and upstream connection are gigabit. Its two gigabit ports carry data into the injector and data plus power out to the AP. IEEE 802.3af/at support covers PoE and PoE+, with automatic power detection and a maker-rated 30 W supply.

The integrated power supply keeps the shopping list short. TP-Link documents desktop and wall mounting, and the injector requires no configuration. Put it near your switch, route the powered cable to the AP and leave the Wi-Fi settings to the AP’s own management interface. The POE160S specifications describe those ports and installation options.

Don’t choose it as the invisible middle box in an otherwise 2.5GbE path. That’s POE260S territory.

POE260S: keep the multi-gigabit uplink

Choose POE260S for a 2.5GbE AP connected to a 2.5GbE switch port. It keeps the same af/at power fit as POE160S while raising both Ethernet ports to 2.5Gbps. TP-Link also calls it TL-POE260S in its product description; the maker page documents both names.

A useful example is UniFi U7 Pro: its official specifications list a 2.5GbE uplink, PoE+ power and 21 W maximum consumption. POE260S matches that documented power-and-data combination. You don’t need bt just because the AP says Wi-Fi 7.

Keep the rest of the path multi-gigabit too. An injector adds power; it doesn’t turn a gigabit switch port into a 2.5GbE port. Our 2.5GbE switch guide covers the upstream choice.

TPE-119GI: high-power bt, gigabit data

Choose TPE-119GI for an 802.3bt device whose data connection can stay at gigabit. TRENDnet’s V2 reference specifies af/at/bt support, automatic power sensing and a maximum 95 W PoE budget. It has an integrated supply and a wall-mountable metal housing.

The extra power is its reason to exist. Buy it for a device that calls for that class, rather than as a generic upgrade for an ordinary PoE+ AP. Its gigabit data ports remain the deciding limitation for multi-gigabit networking. The TRENDnet V2 product page identifies the exact model and supported standards.

Active versus passive: read the standard

The three picks above document automatic sensing. Passive adapters are a different purchase: they can put voltage on the output without negotiation. Ubiquiti explicitly describes its UniFi and UISP adapters this way in its PoE adapter guidance. Follow the exact device’s voltage and pinout requirements for a passive route; don’t treat a familiar RJ45 socket as universal power compatibility.

For a new mixed-brand lab, the documented IEEE-standard route makes selection straightforward: af, at or bt first, then Ethernet speed.

Connect it and check the link

The TP-Link installation guide shows the wiring and indicator meanings for POE160S and POE260S:

1. Connect your switch or router’s Ethernet port to DATA IN.
2. Connect the AP’s PoE input to PWR+DATA OUT. That’s the cable carrying both power and data.
3. Connect the injector’s power supply. For these TP-Link models, steady green means normal PoE supply; yellow means power is on without PoE supply, and flashing green means abnormal PoE supply.
4. Finish the AP’s own setup, then check the negotiated Ethernet speed in the AP or managed switch interface. For the POE260S example, look for 2.5GbE on a matching upstream port.
5. If power or link speed looks wrong, try a known-good cable and recheck the AP’s power requirement. TP-Link specifies Cat5e or better for gigabit/2.5GbE runs, up to 100 m.

You now have one powered AP. For several APs or cameras, compare the cabling and shared power budget of a PoE switch instead of multiplying little power boxes. For one AP, an injector lets a perfectly useful existing switch keep its job.