This item is under development, and it's expected to ship in September. Please subscribe to our monthly newsletter, so we can keep you updated. If you pre-order this item along with non-module items, we'll ship it separately from non-module items later, and we'll absorb its separate shipping fee. If you have pending module orders, our webshop will charge for shipping which we'll reimburse after shipping the modules.
The trackball module attaches to the right keyboard half, it features excellent precision and usability, and is well-suited to be used by a thumb. Following is a demonstration of our trackball and key cluster module prototypes.