LEGO part 3173c01 - Tan Record and Play Module, 16 x 10 x 4 with Built-in Motors 4.5V at BrickScout
Catch and Spin Robots GBC module | Akiyuki.jp
Energie
Great Ball Pit: New Lego GBC Module - Laminar Flow
LEGO IDEAS - Solar Power Plant (Micropolis Module)
Amazon.com: DooQi Motor Power Module Set, 2.4G and APP Remote Control Technology Power Group, Including 4 high-Speed Motors, Suitable for Lego Power fuction : Toys & Games
LEGO Space: Aero Module (6884) for sale online | eBay