For Zero 2W to 3B expansion board, zero USB HUB and Ethernet expansion board,Using a unique adapter design, direct insertion, a strong sense of .At the same time, the zero 2W port is converted into a 3B universal female port, which is convenient to use.The SD card position is perfectly compatible to the 3B position through the thimble. So it is compatible with most 3B shellsAdded a USB audio headphone port. Solved the problem of zero 2W no audio output, and added an additional speaker portInterface IntroductionOnboard 4-way USB expansion port, compatible with USB 2.0/1.1 transmissionOnboard RTL8152B Ethernet chip, support 1 RJ45 network port, 10/100M -adaptiveCan be installed directly to Zero 2W, tested by jumper, can be connected to other versions of or general computer or Android mobile phone through usb cableAdded USB audio, board headphone port and speaker port, when plugging in headphones, the speaker can be automatically disabled.Notice:1. This adapter board only supports Zero 2W, not the version of Zero or Zero W.2. This adapter board is to the 3B adapter solution, (USB audio + 4USB port + RJ45 network port + SD card position imitating 3B position). The cost increase is too high, so it is more expensive. adding so many functions. And compatible with most 3B shells. It can make you have a more perfect experience.color: blueMaterial: PCBPackage Contents:1 x ZERO To PI3 Adapter (Not included RPi Zero 2W)1 x Screw Pack1 x ScrewdriverOnly the above package content, other products 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.