The Dactyl Manuform or simply Manuform depending on what you want to call it.  Multiple sizes are available depending on your needs from 4x6-6x6.  More customized sizes available on request (ie 5x5 or 4x5).  

This features a sandwich mechanism to mount the microcontroller.  This also helps reduce the fatigue placed on the microcontroller USB connectors.    

PCBs

Makes building these much easier by turning almost all of the solder points into through hole connections. Thumb cluster is connected to the alpha section via 6x wires.  All connections are numbered to take the guess work out of wiring.  This build uses the "promicro" layout which is found under handwired/dactyl_manuform folder of QMK.  

PCB include both the alpha and thumb cluster.  The Alpha section is based on BastardKBs open source PCBs found here my version is available on github here

Includes

left and right printed case, 2xTRRS jacks, and 2x reset buttons.

Other Parts/Addons:

For a build you will also need diodes, a microcontroller, and a TRRS cable.  All of these can be found on this site.  Addons for this include bottom cover, wrist rests, and silicone wrist rest toppers

Important: to prevent delays please make sure to order the correct microcontroller adapter located here