Features: brand new and high quality Onboard with 3 usb expansion ports, for usb2.0/1.1 transmission. Equipped with rtl8152b ethernet chip, lead out rj45 network port, 10/100m adaptive There are multiple indicators on the board, which is convenient to check the working status of the power supply, network port and usb expansion interface USB to ethernet network, plug and for play, drive-free. Fit for Raspberry Pi 4 Model B 3B+ Zero for W WH 1.3 Specifications: Item:Expansion board Fit : for Raspberry Pi 4 Model B 3B+ Zero for W WH 1.3 Port: 3 USB + Rj45 Working Voltage: 5V Product Size:approx 65mm 30mm/2.56x1.18in Fixed Hole Diameter: 3.0mm Note: Not include Raspberry Pi . Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 PC x Expansion Board