This for hub HAT provides more USB capability to your Pi, plus a RJ45 Ethernet port, which is great when you need a stable wired Ethernet connection. It can work with various versions of the Pi, and the size of the board is designed to perfectly fit the Zero / Zero W / Zero WH. 3x USB ports, compatible with USB2.0/1.1; 1x RJ45 10/100M port, based on the RTL8152B Ethernet chip; Onboard multi indicators, for monitoring the status of power, Ethernet, and each USB port Color:Blue Material:PCB 1. GPIO interface: for connecting 2.USB extended ports: USB1~USB3 3.RJ45 port: 10/100M Ethernet interface USB HUB interface (bottom): for connecting the HUB to the USB port Zero / Zero W / Zero WH: connected via -USB connector B+ / 2B / 3B / 3B+: connected via -USB cable 5.TS8121A: Ethernet wave filter 6.RTL8152B: 10/100M Ethernet chip 7.FE1.1S: USB HUB chip 8.LED indicators: PWR: power indicator ACT: Ethernet indicator D1~D3: dedicated indicator for USB1~USB3 respectively Operating voltage: 5V Dimension: 65mm x 30mm Mounting hole size: 3.0mm Package Contents: 1 x ETH/USB HUB HAT 1 x -USB connector 1 x USB Cable 1 x RPi screws pack 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.