Occasionally, defunct game studios (like THQ or Telltale Games) liquidate assets. Government auction sites (GovDeals, BidSpotter) sometimes list "video game testing equipment" without knowing it is a 3DS dev kit.
Listings are often vague. Sellers may not know what they have. Look for the yellow sticker or the thick, non-transparent grey chassis. 3ds dev kit for sale
: Nintendo provided support to developers through the dev kit, which often included access to documentation, technical support, and sometimes even NDAs (Non-Disclosure Agreements) to ensure that pre-release information about games and the console itself remained confidential. Occasionally, defunct game studios (like THQ or Telltale