The Shock Drive (Japanese: イナズマカセットLightning Cassette) is a type of held item introduced in Generation V. It is one of the Drives, which are associated with Genesect. It corresponds to the Electric type.
Changes a Genesect holding this item to its Shock Drive form. Item-manipulating effects (such as Trick and Fling) cannot give Genesect a Drive or remove a Drive from Genesect.
The Shock Drive, along with the other Drives, appeared in Genesect and the Legend Awakened, attached to a member of the Genesect Army. While it was used with the same purpose of changing the type of Techno Blast in the movie, it was also the key item to tell its owner apart from the other Genesect.
In the manga
The Drives in Pokémon Adventures
In the Pokémon Adventures manga
From Mr. Perfect to Innocent Scientist, Colress used Genesect to battle against Blake. After falling for one of Blake's taunts, Colress angrily switched the Drive on Genesect's back for a Shock Drive in order to put Blake's Dewott at a disadvantage against the Paleozoic Pokémon. Once Blake had defeated and captured Genesect, he obtained the Shock Drive in the process. The Shock Drive was later given to the Magician in order to reverse-engineer another set of Burn, Chill, and Douse Drives.