Introduction
By providing an easy to use and readily available hub for accessibility switches and controls, supported like any typical Xbox controller, the Xbox Adaptive Controller makes adaptive gaming controls more affordable and easy to set up. See the Xbox Adaptive Controller Product page for more information on the product itself.
DIY or plug and play
One of the biggest challenges can be sourcing the accessibility switches and other peripherals. Tech-savvy people can make their own switches with components from shops like Amazon or most (local) electronics vendors. For more information see this tutorial from Adafruit, follow Microsoft's own Bryce Johnson on Twitter, view this excellent playlist on YouTube, and check out these DIY tutorials from Barrie Ellis (OneSwitch). All of these are great resources from people who are passionate and knowledgeable about providing physical accessibility to gaming.
Another good place to visit is Makers Making Change which has a library of assistive technology projects which you can build yourself, or if you're located in the United States or Canada you could request to have these built by their network of makers. You can even submit ideas to their forum.
For plug-and-play options, please view the following lists.
Buying switches
Below you'll find links to shops that sell plug-and-play switches (and often other peripherals) to use with the Xbox Adaptive Controller. The lists are ordered alphabetically with no preference given, prices may differ between vendors so comparing multiple options is recommended.
Most of the shops listed here also provide other assistive technology that may prove useful, where possible the link refers directly to the switches on offer at that vendor. The links have last been checked on May 27th 2020.
Austria
Czechia
Denmark
Estonia
Finland
France
Germany
Israel
Netherlands
New Zealand
Norway
Poland
Portugal
Slovakia
South Africa
Spain
United Kingdom
United States
Suggestions
If you have suggestions to expand this collection, you can let me know on Twitter.