The Pi Zero USB Stem is a PCB kit that turns a Raspberry Pi Zero into a USB dongle. Once the stem is installed, your raspberry Pi can be plugged directly into a computer or USB hub without any additional cables or power supplies. The Raspberry Pi then acts as a USB device using its own Linux kernel gadget drivers to get started.
The Zero Stem is designed to be solder directly to the USB SMD test pads on the bottom of the Raspberry Pi Zero, needing no wires or pogo pins at all, jus solder and soldering iron. Attaching the stem to Pi also allows you to create a portable VNC Server, or even cluster of several Raspberry Pi Zeros with just a USB Hub.
The Zero stem is compatible with Raspberry Pi Zero 1.3 and Raspberry Pi Zero W 1.1 but unfortunately its is not compatible with the raspberry Pi Xero 1.2 or any full sized Raspberry Pi due to their shapes and sizes.