.. __about_this_kit:

About_this_kit
====================

Preface
-------------------------------

We first need to understand what an POE HAT is ：

.. figure:: ./Tutorial/img/LB006_A7.jpg
   :align: center
   :width: 70%


Our PoE HAT is a Power over Ethernet expansion board compatible with Raspberry Pi 3B+/4B/5. Compliant with the IEEE 802.3af/at network standard, it draws power directly from a PoE switch using only a single network cable. It features two independent DC output interfaces: 12V/2A and 5V/4.5A, providing ample power to the Raspberry Pi and peripherals.

.. figure:: ./Tutorial/img/LB006_A5.jpg
   :align: center
   :width: 70%

.. figure:: ./Tutorial/img/LB006_A6.jpg
   :align: center
   :width: 70%

Componen List
-------------------------------

1. POE HAT x1
2. 2×2P PoE adapter header x2
3. M2.5×18 brass standoffs x4
4. M2.5×8 black countersunk screws x8
5. Pi5 heatsink kit x1
6. Cross-head screwdriver x1

   .. image:: /Tutorial/img/LB006_A10.jpg

Note
-------------------------------

.. Note::
   1. **Do NOT power the Pi via USB-C while the PoE HAT is connected** — board damage will occur.  
   
   2. **PoE HAT fits Pi 3B+, 4B, 5**; official Pi 5 cooler works **only** on Pi 5.  
   
   3. **Keep total continuous power below 25 W; if peripherals draw high power, use a switch that supports 802.3at and can provide at least 30 W with a 20 % margin.**


.. raw:: html

   <div style="border:2px solid #e74c3c;border-radius:8px;padding:12px;margin:8px 0">
   <b style="color:#e74c3c">Strong Compatibility</b><br>
   Supports Raspberry Pi 3B+/4B/5; switching between models is achieved instantly through a single 2.54 mm 2×P connector socket.
   </div>

   <div style="border:2px solid #3498db;border-radius:8px;padding:12px;margin:8px 0">
   <b style="color:#3498db">Rich Interfaces</b><br>
   Retains the standard 40-pin GPIO header for easy stacking of other Raspberry Pi expansion boards; additionally provides 12 V/2 A and 5 V/4.5 A external power connectors to directly supply external devices.
   </div>

   <div style="border:2px solid #2ecc71;border-radius:8px;padding:12px;margin:8px 0">
   <b style="color:#2ecc71">Easy to Use</b><br>
   Snap on the PoE HAT and plug in the 2×2P connector to start working immediately—no extra setup required.
   </div>

   <div style="border:2px solid #f39c12;border-radius:8px;padding:12px;margin:8px 0">
   <b style="color:#f39c12">Mechanical Friendly</b><br>
   Reserved mounting space for active cooling fans; each cable terminal has a top exit slot for effortless wiring.
   </div>

+----------------------+----------------------------------+
| **PoE Power Input**  | 37 V – 57 V DC                   |
+======================+==================================+
| **Power Output**     | GPIO header: 5 V 4.5 A (MAX)     |
|                      | 2P header:   12 V 2 A (MAX)      |
+----------------------+----------------------------------+
| **Dimensions**       | 150.5 mm × 102 mm                |
+----------------------+----------------------------------+
| **Weight**           | 0.1 kg                           |
+----------------------+----------------------------------+
| **Network Standard** | IEEE 802.3af/at PoE              |
+----------------------+----------------------------------+