With all of the features we know and love of Zero W; the new Zero WH is the same board that also includes professionally 40 PIN soldered headers. The difference between this edition and the current Pi Zero W is pre-soldered GPIO header.This makes it much easier to start prototyping with a Pi Zero board, because you no need to solder pins to the header manually.It's perfect for everyone who doesn't own a soldering iron or who wants the soldering legwork done for .There are many instances where you do a header on your Zero W, for example in order to take advantage of the GPIO expander tool for Debian Stretch on a PC or .Using the GPIO expander with the Zero WH decreases the setup cost for anyone interested in trying out computing in the classroom or .for Zero WH Features:BCM2835512MB RAMMini- port (1080p60 video output)1GHz ARM11 single-core processor40PIN pre-soldered GPIO headersComposite video and reset headers camera connectorAdded wireless connectivity802.11b/g wireless Bluetooth 4.1Bluetooth Low Energy ()-USB OTG port-USB power-SD card slotDimension: 65mm x 30mm x 11.6mmcolour:greenMaterial:plasticPackage Contents:1 x Zero WH1 x 40 PIN pre-soldered GPIO HeadersOnly the above package content, other products are not included.Note: Light 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.