This for hub HAT provides more USB capability to your , plus a RJ45 Ethernet port, which is great when you need a stable wired Ethernet connection. It can work with various versions of the , and the size of the board is designed to perfectly fit the / W / WH.3x USB ports, compatible with USB2.0/1.11x RJ45 10/100M port, based on the RTL8152B Ethernet chipOnboard multi indicators, for monitoring the status of power, Ethernet, and each USB port1. GPIO interface: for connecting 2.USB extended ports: USB1~USB33.RJ45 port: 10/100M Ethernet interfaceUSB HUB interface (bottom): for connecting the HUB to the USB port / W / WH: connected via -USB connector B+ / 2B / 3B / 3B+: connected via -USB cable5. TS8121A: Ethernet wave filter6.RTL8152B: 10/100M Ethernet chip7. FE1.1S: USB HUB chip8.LED indicators:PWR: power indicator: Ethernet indicatorD1~D3: dedicated indicator for USB1~USB3 respectivelyOperating voltage: 5VDimension: 65mm x 30mmMounting hole size: 3.0mmcolor:BlueMaterial:PCBPackage Contents:1 x ETH/USB HUB HAT1 x -USB connector1 x USB Cable1 x RPi screws packOnly the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.