PlayStation 4 prototype controller reportedly leaked in dev kit photo - Polygon
Spotted a PS4 Devkit in a local used games store : r/gamecollecting
PS4 Neo Dev Kit Containing 800GB of Data Bought at Auction - The Tech Game
Playstation 4 Development System DevKit - YouTube
PlayStation 5 devkit and final next-gen console designs are revolutionary in comparison to previous efforts leaving high expectations for the PS6 - NotebookCheck.net News
Every PlayStation Dev Kit (PS1, PS2, PS3, PS4 and PS5)
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1 Sony Playstation PS4 official DevKit - Console (0) - With - Catawiki