The DualShock 4 Back Button is a controller add-on that snaps into the undercarriage of your PS4 controller. It adds not one, but two, fully customizable buttons to your PlayStation controller.

To do this, turn off your PS4 console completely and unplug it. Next, find the small hole at the back of your DualShock 4 ...

Sony’s PlayStation DualShock 4 Back Button Attachment is ideal for gamers that want a pro-style controller but balk at the prices of third-party options from the likes of Scuf and Astro.

[Becky] had some PS4 controllers that were sadly no longer functional. However, most of the buttons and joysticks still appeared to be okay. Thus, she set about designing a replacement PCB to ...