Welcome to the store! This is a mini expansion board for Power over Ethernet (PoE) for Nano/NX motherboard, which supports the IEEE 802.3af/at network standard. If you already have a PoE router or switch that supports this network standard, with this expansion board, you only need to connect a network cable to enable the motherboard to achieve network and power supply functions. For use with for Nano or for NX Supports PoE Power over Ethernet, supports IEEE 802.3af/at PoE network standard Uses fully isolated switch mode power supply (SMPS) Adopting a more compact component layout scheme, the overall volume is smaller and the use is more flexible Due to different batches, there may be differences in product appearance, color, and printed text, which does not affect the use. Color: Black Material: PCB Package Contents: 1 * POE Power Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!