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Small green circuit board with GPIO header and RJ45 port

KEHIPI

KEHIPI PoE HAT Raspberry Pi 4B/3B+ 802.3af 12.5W U6109

SKU CH-99FR-V02X4

Adds Power-over-Ethernet to Raspberry Pi 4B or 3B+ with 12.5 W output and 802.3af compliance

  • Powers Raspberry Pi 4B or 3B+ through a single Ethernet cable
  • Delivers up to 12.5 W at 5 V 2.5 A for stable operation
  • Compact 65 × 44 × 13 mm board fits inside most cases
  • Works with 48 V non-standard switches for wider compatibility
  • Meets IEEE 802.3af standard for reliable Power over Ethernet

Compact PoE HAT for Raspberry Pi 4B and 3B+

The UCTRONICS U6109 PoE HAT supplies power to a Raspberry Pi 4 Model B or 3 Model B+ through a single Ethernet cable. It measures 65 by 44 by 13 millimetres, roughly half the footprint of the official HAT, leaving extra room inside the case for other hardware. The board complies with IEEE 802.3af and delivers up to 12.5 watts at 5 volts and 2.5 amperes.

Sustained-load thermal behaviour

Under continuous operation the HAT becomes warm, so a well-ventilated environment is required for stable performance. Adequate air circulation helps dissipate heat and prevents throttling during long-running workloads. The supplier notes that a case with a fan, such as the one referenced by ASIN B07WMNXB4V, can be used with the Pi 4 to improve airflow.

48-volt non-standard switch compatibility

A key revision allows the U6109 to work with 48-volt non-standard PoE switches, broadening the range of compatible network equipment. The board is not recommended for use with RJ45 cables that have aluminium foil shielding. Buyers who need PoE+ (802.3at) power budgets or isolated DC-DC conversion should look elsewhere.

Punti di forza

  • Powers Raspberry Pi 4B or 3B+ through a single Ethernet cable
  • Delivers up to 12.5 W at 5 V 2.5 A for stable operation
  • Compact 65 × 44 × 13 mm board fits inside most cases
  • Works with 48 V non-standard switches for wider compatibility
  • Meets IEEE 802.3af standard for reliable Power over Ethernet

Caratteristiche tecniche

BrandUCTRONICS
ModelU6109
Part NumberU6109

Domande su questo articolo

Does the U6109 PoE HAT need a fan or heatsink when powering a Pi 4B continuously at 12.5W?

The HAT runs hot during operation; the supplier recommends a well-ventilated environment and adequate air circulation for stable performance.

What Ethernet infrastructure must I already have to use the U6109 with a Raspberry Pi 3B+?

You need a network switch or injector that supports IEEE 802.3af PoE; the HAT draws up to 12.5W from the Ethernet cable.

Will the 65 mm × 44 mm × 13 mm U6109 fit inside a standard Raspberry Pi case alongside a Pi 4B?

The compact board is nearly half the size of the official PoE HAT and fits in most cases designed for the Pi; a fan-equipped case is suggested for the Pi 4.

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