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Black plastic box with eight RJ45 ports and DC jack

Ruth's sister

Ruth's sister 4 Port POE Injector internal power cable

SKU CH-48SQ-6R53A

Four-port PoE injector powers IP cameras, VoIP phones and Wi-Fi access points from a single 12–48 V supply at up to 3 A

  • Powers four PoE devices from one supply
  • 10/100 Mbps data rate on every port
  • 12 V to 48 V input accepts common adapters
  • Compact 10 × 4 × 3 cm plastic housing
  • LED indicator shows power status at a glance

4 Port POE Injector for IP cameras

This injector adds Power over Ethernet to four camera feeds from a single DC source. It suits installers who need to power VoIP phones, Wi-Fi access points or surveillance cameras without individual adapters. The module accepts 12 V to 48 V input and shares the available current equally across all ports. A built-in LED shows when power is present.

Check switch ports and DC supply voltage

Verify that your network switch or router provides four free RJ-45 ports for the data connections. Confirm the external power supply delivers between 12 V and 48 V and can supply up to 3 A total current. Each LAN+Power output uses pins 4/5 and 7/8 for power while pins 1/2 and 3/6 carry 10/100 Mbps data. The DC jack measures 2.1 mm by 5.5 mm.

Thermals noise and power draw

The plastic enclosure operates from 0 °C to 50 °C with no fan, so it runs silently in normal use. Power consumption depends on the connected devices, with a maximum combined output of 3 A across the four ports. No active cooling is required and the unit produces no audible noise. Storage temperature range extends from -40 °C to 70 °C.

Highlights

  • Powers four PoE devices from one supply
  • 10/100 Mbps data rate on every port
  • 12 V to 48 V input accepts common adapters
  • Compact 10 × 4 × 3 cm plastic housing
  • LED indicator shows power status at a glance

Specifications

No published specifications for this item yet.

Questions about this item

Does the package include a power supply or only the injector itself?

The box contains one 4-port POE injector module. No power supply is included; you must provide a 12 V–48 V DC source with a 2.1 mm × 5.5 mm plug.

How many cameras can I run from the four ports and what total current is available?

All four ports share the same voltage and divide the available current equally, up to a combined 3 A maximum output.

The spec lists 10/100 Mbps — will that limit my 1080p IP cameras?

10/100 Mbps TIA/EIA 568B-2 provides 100 Mbps per port, which is sufficient for typical 1080p streams but not for higher-bitrate 4K feeds.

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