Raspberry Pi Foundation introduces PoE + extension for $ 20

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The Raspberry Pi Foundation comes with a new Power-over-Ethernet module. This new HAT implements the 802.3at standard for PoE +, where the first generation only supported the regular PoE standard. The suggested retail price of $ 20 remains unchanged.

The new Raspberry Pi PoE + module will be available alongside the 2018 original, the Raspberry Pi Foundation said in a blog post. The older variant used a particular chip that is poorly available due to shortages. The new PoE + variant should be available to resellers in early June, the company reports. The old variant also remains in production.

Users can put the PoE + extension on top of their Raspberry Pi 3B + or Pi 4B. This allows users to supply their Pi with power and internet via the built-in RJ45 Ethernet connection, provided they have a PoE switch or router. Users can also use a PoEinjector use. The module comes with a 25mm fan for cooling.

Images via the Raspberry Pi Foundation

Thanks to the support for the 802.3at standard, the PoE + module can handle an input with a maximum power of 25.5W. According to the Raspberry Pi Foundation, that’s enough to power a Raspberry Pi 4, but may not be enough to power USB accessories that use a lot of power at the same time. The new module also retains support for the regular 802.3af standard. This means that the PoE + extension also works with regular PoE switches, routers or injectors.

In addition to support for 802.3at, the new extension also offers a built-in current sensor. The module also receives a planar transformer, which must be more efficient and compact than the wire-wound transformer from the original PoE extension.

Raspberry Pi PoE modules
Fashion model PoE HAT (old) PoE + HAT (new)
Supported PoE standards 802.3af 802.3af, 802.3at
Output voltage 5V 5V
Current 2.5A 5A
Maximum power 15.4W 25.5W
25mm fan Yes Yes
Flow sensor No Yes
Type of transformer Wire-wound Planar
PCB 4 layers, 2oz copper 4 layers, 2oz copper
MSRP 20 dollars 20 dollars
Works with Raspberry Pi 3B +, 4B Raspberry Pi 3B +, 4B
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