PoE Injectors

29 products

Single-Port Power for Access Points, Cameras, and Phones

Island Electrical Supply stocks PoE injectors from Ubiquiti, HPE Aruba, TRENDnet, TP-Link, and other leading brands. A PoE injector adds power delivery to a single ethernet run, letting you install an access point, IP camera, or VoIP phone in a location where your existing switch doesn't support PoE. Every unit ships with full manufacturer warranties.

Common PoE Injector Applications

  • Single access point installs — Powering a wireless access point in a location where the existing switch has no PoE
  • Remote camera locations — Adding an IP camera to a hallway, stairwell, or exterior wall far from a power outlet
  • Door stations and intercoms — Powering VoIP door phones, video intercoms, and access control readers at building entry points
  • Temporary or test deployments — Quick single-device setups before committing to a full PoE switch upgrade

Key PoE Injector Features

  • PoE (802.3af) — Delivers up to 15.4W per port, sufficient for VoIP phones and basic access points
  • PoE+ (802.3at) — Delivers up to 30W, covering most WiFi 6 access points and fixed IP cameras
  • PoE++ (802.3bt) — Delivers up to 60W or 90W for high-draw devices like PTZ cameras, video conferencing endpoints, and outdoor access points with integrated heaters
  • Gigabit passthrough — All injectors in our catalog pass data at full Gigabit speed, so adding power doesn't bottleneck your connection

Choosing the Right PoE Injector

Match the injector's wattage to your device's power requirements. Check the device datasheet for its PoE class and maximum draw. Over-provisioning slightly is fine (a 30W injector powering a 15W device just delivers the wattage the device negotiates), but under-provisioning will prevent the device from powering on.

If you're powering more than two or three devices, a PoE switch is usually more practical. It eliminates individual injectors at each device, simplifies cable management, and gives you centralized control over power delivery. Injectors are the right call for one-off installs, remote locations, or adding a single powered device to an existing non-PoE switch port.

For outdoor installs, make sure the injector is housed in a weatherproof enclosure or installed inside a conditioned space. Most PoE injectors are designed for indoor rack or desk mounting. Pair your injectors with the right ethernet switches and wireless access points for a complete deployment.

Why Buy PoE Injectors from Island Electrical Supply

In-stock injectors ship same day, and qualifying orders ship free. We offer installer discounts, wholesale pricing, and net terms for qualified B2B accounts. Need help choosing the right wattage? Reach us directly any time.

Frequently Asked Questions

When should I use a PoE injector instead of a PoE switch?

Use a PoE injector when you only need to power one or two devices and your existing switch does not support PoE. If you need to power multiple devices, a PoE switch is more cost-effective and simplifies cable management.

What is the difference between PoE, PoE+, and PoE++?

PoE (802.3af) delivers up to 15.4W per port. PoE+ (802.3at) delivers up to 30W, which covers most access points and cameras. PoE++ (802.3bt) delivers up to 60W or 90W for high-power devices like PTZ cameras and video conferencing units.

Are PoE injectors compatible with all brands?

PoE injectors follow IEEE 802.3af/at/bt standards, so they work with any compliant device regardless of brand. Some older or proprietary devices may use passive PoE, which requires a brand-specific injector. Always check your device's PoE requirements before purchasing.