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A black rectangular four-port PoE injector with status LEDs and a power socket

STARTECH

STARTECH POEINJ4G-US 4-Port Gigabit PoE+ Injector

SKU CH-Y7WS-N49RS MPN POEINJ4G-US

Adds power and data to four PoE devices over Gigabit Ethernet with 802.3at/af support up to 328 feet

  • Powers four devices from one midspan hub
  • Delivers up to 30.8 W per port under 802.3at
  • Auto-negotiates 10/100/1000 Mbps speed and power level
  • Runs 100 m over Cat5e/6/6a cabling
  • Plug-and-play with no software or configuration required

4-Port Gigabit PoE+ Injector

The StarTech POEINJ4G-US is a midspan hub that adds Power over Ethernet to four network links. It delivers data and power over existing Cat5e, Cat6 or Cat6a cable runs up to 328ft, making it suited for installers who need to supply PoE devices without replacing a non-PoE switch.

Installers adding PoE to an existing switch

This injector suits technicians who want to power IP cameras, wireless access points or VoIP phones from a standard data switch. It does not suit buyers who need more than four powered ports, devices that require higher than 30.8W per port, or networks that must negotiate speeds beyond 1000Mbps.

30.8W per port under 802.3at

Each port can supply up to 30.8W under the 802.3at standard or 15.4W under 802.3af, with automatic negotiation of the correct power level for every connected device. This single figure determines whether the injector can support the specific powered devices in a deployment.

How it compares

Measured against everything we stock in Patch Panels, PoE & LAN Adapters, at today’s prices. Recalculated every night.

Price $102.99
Pricier than about 64% of the 559 comparable items (median $56.99).

Specifications

Size & build
Shipping weight1.68 kg
Package size302 × 178 × 91 mm

Questions about this item

What PoE standards does the 4-port injector support and what is the maximum power per port?

The injector supports IEEE 802.3af and 802.3at standards, delivering up to 15.4W per port for PoE and up to 30.8W per port for PoE+.

What cabling and distance limits apply for power and data delivery?

It works over existing Cat5e, Cat6, or Cat6a cabling and delivers power and data up to 328ft (100m).

How is the injector installed and what common step is overlooked?

Connect the injector between your network switch or router and the powered devices using Ethernet cables; plug the unit into a 54V power source. The step often missed is verifying the switch ports are non-PoE so the injector can negotiate power correctly.

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