|This article is about a/an transformation device in Kamen Rider 555.|
Designated "SB-333B", the Delta Driver (デルタドライバー Deruta Doraibā) is a high tech looking belt that generates the Photon Streams to form the Delta Rider armor. If the belt is removed, the armor disappears. It is the primary storage place for the Delta Mission Memory.
Unlike the other gears, the Delta Gear's buckle is fixed into the middle, where the Gear's transgenerator is attached. The device that actually starts Delta's transformation is fitted into the right hip like a pistol holster.
Its armor is the heaviest, slowing down the wearer significantly. It also only has one weapon and Exceed Charge to accompany it, the Delta Blaster and its Lucifer's Hammer. However, to compensate, the armor amplifies the users' physical power the most, somewhat eliminating the need for more weapons. Since this Driver is still in the prototype stage, it can be used freely by either human, with or without Orphnoch DNA artificially implanted into them, or by an actual Orphnoch.
This is not without its own faults, however. The Driver has a defect that causes its users to become addicted to battle, making them go insane with bloodlust. Only those with strong wills or a desire to not fight at all can resist its influence. If someone is already insane, it does not affect them.
In an alternate continuity, Kamen Rider 555: Lost World, the belt was destroyed by the Rose Orphnoch with its primary user killed and the remaining components were reused to make the two Emperor's Belts, the Drivers SB-315B Psyga Driver (a.k.a. the Belt of the Sky) and SB-000B Orga Driver, for Kamen Rider 555: Paradise Lost, explaining the absence of the Delta Driver and Shuji within the film.
World of Faiz
The Delta Driver also existed in the A.R. World of Faiz but was unused. It was seen abandoned alongside the Psyga Driver and a Smart Buckle in the ruins of Smart Brain High School as Daiki Kaito retrieved the Orga Driver as his "treasure" from Faiz's World.