Ubiquiti U-POE 802.3af Power Injector

Ubiquiti U-POE | 802.3af Power Injector for Passive PoE Devices

The Ubiquiti U-POE (Previously U-POE-AF) Instant 802.3af 48V 15W Power POE Injector transforms passive PoE devices into fully compliant 802.3af equipment, delivering reliable Gigabit power delivery for Ubiquiti networks.

Designed for installers and network managers, this compact injector adds IEEE 802.3af compliance to existing passive PoE hardware, enabling longer cable runs and improved surge protection.

Seamless Ubiquiti Integration

The U-POE injector works with most Ubiquiti PoE devices featuring 100 Mbps or Gigabit Ethernet ports. It supports both indoor and outdoor airMAX and UniFi devices, allowing you to upgrade passive PoE equipment without replacing the entire unit.

Extended Cable Runs with Efficient Power Delivery

High voltage power delivery enables longer cable distances compared to standard passive PoE. The U-POE converter maintains Gigabit speeds while efficiently transmitting power, reducing voltage drop over extended runs and improving overall network reliability.

Enhanced ESD and Surge Protection

With 15kV of Ethernet isolation, the U-POE provides additional protection against electrostatic discharge and power surges. This safeguard helps prevent damage to connected devices during electrical events, extending equipment lifespan.

Compatible with 802.3af PoE Switches

The injector integrates seamlessly with auto-sensing 802.3af PoE switches for remote power management. Network administrators can power cycle connected devices remotely through the switch interface, simplifying maintenance and troubleshooting.

Box contents

• Ubiquiti U-POE Instant 802.3af Gigabit PoE Converter
• Power adapter (UK plug not specified – confirm regional compatibility)
• Mounting hardware

Check before you buy

• Confirm your passive PoE devices are compatible with 802.3af conversion
• Verify your network switch supports 802.3af for remote management features
• Check the total power requirements of connected devices (max 15W per port)
• Confirm regional power adapter compatibility for your installation location

Frequently Asked Questions

Q: Can the U-POE work with non-Ubiquiti devices?

A: Yes, it works with any passive PoE device that accepts 48V power and has compatible Ethernet ports.

Q: What is the maximum cable length supported?

A: Cable length depends on power requirements, but the efficient 48V delivery supports longer runs than standard passive PoE.

Q: Does this provide Gigabit speeds?

A: Yes, the U-POE maintains full Gigabit Ethernet speeds while delivering power.

Q: Can I power cycle devices remotely?

A: Yes, when connected to an 802.3af PoE switch that supports remote power management.

The Consultant’s verdict & warranty

The Ubiquiti U-POE Instant 802.3af Gigabit PoE Converter offers a practical upgrade path for existing passive PoE deployments, adding IEEE compliance, surge protection, and remote management capabilities. Ideal for network professionals expanding or upgrading Ubiquiti-based installations. Covered by the standard Manufacturer Warranty.