gaia memory

Henshin devices employed by the Kamen Riders and Dopants in Kamen Rider W and Fuuto Tantei. They resemble USB flash drives.

The Memories used by the Kamen Riders have an inorganic appearance, whereas those used by the Dopants look like ribcages. When a button is pressed to activate one, a voice known as the "Gaia Whisper" plays; this voice is provided by Tachiki Fumihiko.