This is a Power over Ethernet (PoE) mini expansion board for Nano/NX motherboard, supporting 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 networking and power supply functions Works with Nano or NX Supports PoE power supply over Ethernet and supports IEEE 802.3af/at PoE network standard Adopt 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 PoE power input: 37V~57V DC input Power output: 12V2.1A DC output Network standards: Support IEEE 802.3af/at PoE Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual item. Colour:Black Material:PCB Size:21 x 92mm Package Contents: 1x POE Expansion Board Body 1x 40Pin Inline Pin 1x Small Socket 2x Self-Tapping Hexagonal Studs 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.