Icon-w.png This article is about a/an device in Kamen Rider W.

"(Memory) Upgrade!"
―Memory attachment announcement[src]

"(Sports motorcycle revving) Booster!"
―Transformation announcement with the Accel Driver[src]

The Gaia Memory Enhancing Adapter (ガイアメモリ強化アダプター Gaia Memori Kyōka Adaputā) is a special device, currently possessed by Kamen Rider Accel, that increases a Gaia Memory's power output threefold. Using it on his Accel Memory, he transforms into Kamen Rider AccelBooster.

Though the Museum attempted to place Gaia Memory Enhancing Adapters on the market, only one was made before the organization fell apart in the aftermath of Ryubee's demise, Terui had heard of it but didn't see it in action until after the fall of the Museum. It was stolen by Aoi Katsuragi while she was out pickpocketing, giving it to Masaru. Not realizing the device's true value and assuming it was mere jewelry, this led to Aoi and her gang being attacked by the Commander Dopant, Hiroshi Sagami and his Masked Soldiers, slaughtering them all except Aoi and Masaru who escaped. Aoi was later confronted by the Commander Dopant who demanded she give it back. Accompanied by Ryu Terui who was protecting her, Aoi approached Masaru who revealed that he gave it to the 'Boss' who directed their pickpocketing operations. They then confronted him with Terui swiftly retrieving the device while also learning of its nature from the Boss, who attempted to use it on a Unicorn Memory before being stopped by Terui who destroyed the Memory with his gun. The Adapter was later claimed by Hiroshi Sagami, who used it on his Commander Memory, which enhanced his Dopant form. However, it was taken by Aoi who gave it to Terui. When used on his Accel Memory, it transformed him into AccelBooster, which allowed him to defeat the Commander Dopant. Kamen Rider W Returns: Kamen Rider Accel The Gaia Memory Enhancing Adapter would be kept by Terui to access AccelBooster after the ordeal, such as during the battle with the Akumaizer. Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum

Icon-w.png Kamen Rider W
Narumi Detective Agency
Shotaro Hidari - Philip - Akiko Narumi - Sokichi Narumi† - Tokime
Memory Drivers
Double Driver - Accel Driver - Lost Driver
Gaia Memory-related
Gaia Memories - Memory Gadgets - Fang Memory - Xtreme Memory - Trial Memory - Gaia Memory Enhancing Adapter
Metal Shaft - Trigger Magnum - Engine Blade - Skull Magnum - Prism Bicker - Eternal Edge - Shroud Magnum
RevolGarry - HardBoilder - Gunner A - Diablossa - SkullBoilder - SkullGarry - HardMammother
The Fuuto Irregulars
Santa-chan - Watcherman- Queen & Elizabeth - Isamu Bito
Futo Police Department
Ryu Terui - Mikio Jinno - Shun Makura
Museum and the Dopants
Foundation X
The Sonozaki Family: Terror - Claydoll - Taboo/R Nasca - Nasca - Smilodon - Masquerade Dopants
Dopants: Magma Dopant - T-Rex Dopant - Money Dopant - Anomalocaris Dopant - Cockroach Dopant - Sweets Dopant - Virus Dopant - Violence Dopant - Arms Dopant - Bird Dopant - Ice Age Dopant - Triceratops Dopant - Liar Dopant - Puppeteer Dopant - Invisible Dopant - Nightmare Dopant - Beast Dopant - Zone Dopant - Yesterday Dopant - Quetzalcoatlus Dopant - Gene Dopant - Jewel Dopant - Old Dopant - Utopia Dopant - Energy Dopant
Movie Exclusive Villains: Dummy Dopant - Heat Dopant - Trigger Dopant - Metal Dopant - Luna Dopant - Cyclone Dopant - Bat Dopant - Spider Dopant - Kamen Rider Eternal - Commander Dopant - Eyes Dopant
Novel-Exclusive Villains (The One Who Continues After Z): Zoo Dopant - Zero Dopant - Queen Bee Dopant - Flower Dopant - Elephant Dopant - Dolphin Dopant - Salamander Dopant - Fish Dopant - Bird Dopant - Ape Dopant - Bee Dopants
Manga Exclusive Villains (Futo Detective): Road Dopant - Aurora Dopant - Meganeura Dopant -Brachiosaurus Dopant - Scream Dopant - Alcohol Dopant - Puzzle Dopant - Reactor Dopant - Antlion Dopant - Owl Dopant - Trash Dopant - Caracal Dopant - Toadstool Dopant
Yukiji Bando - Kazuha - Hideo - Mamoru Nikaido - Sabu
Katsumi Daido - Maria S. Cranberry - Reika Hanehara - Kyosui Izumi - Gozo Domoto - Ken Ashihara
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