With a similar set of features as the Raspberry Pi, it’s no mystery why the Raspberry Pi Zero has been so widely adopted — the Zero is substantially smaller and less expensive. While the Zero board’s girth is a diminutive 65mm x 30mm or about 2.6in x 1.2in, it’s difficult to get a grasp of how small this actual computer is until you hold it in your hand. Two of them even fit on top of a Post-it note!
That being said, this tiny size comes at the expense of ports — it only comes with a Mini HDMI port and a single Micro USB port for communications. Another Micro USB port is present, but only works for power. To get around these difficulties, this dongle kit turns a Raspberry Pi Zero into a device that can be plugged into a computer via a standard USB port, reminiscent of a thumb drive. With the correct micro SD card installed, you simply plug it in, then control it with your computer without having to worry about setting up a keyboard/mouse/monitor.
