Can be connected to PI5 through 16PIN cable, based on PI5's 16PIN PCle interface design. High-performance chip - equipped with RTL8111H high-performance main control chip, supports for Raspberry PiOS driver-free, plug and play. With acrylic transparent support base, adopts side installation solution, does not occupy the top space of the motherboard. Power supply - PCle cable is used for power supply by default. Main control chip:RTL8111H Network port type:RJ45 Gigabit network port PICe interface:PICe x1 GEN2 Power supply:5V Network standard:10/100/1000Mbps Status light:Gigabit: green light flashing; 100M: yellow light flashing Due to different product batches, the appearance , which does not affect the use. Colour:Black Material:PC Package Contents: 1 * expansion board(Expansion board only, no other demo products included) 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.