Though not necessarily a superpower itself, it does grant high-tech powers to the user.
The user utilizes a specialized suit of armor by using technology alone. Armor may be powered by the user's thoughts, so the user would have to concentrate if the suit is to high-tech function properly. With all mechanical power the armor possesses, there are cutbacks. The suit may need a source of supply power to activate or the suit would use the user's life energy, thus rendering the user unconscious or dead. The suit may even enhance the powers of those who already have powers. The suit may be equipped with all sorts of gadgets the user can use.
Numerous characters (Fallout series); via Power Armor
Spartans (Halo series)
Cyborg Ninjas (Metal Gear series)
Solid Snake (Metal Gear series)
Solidus Snake (Metal Gear series)
Haven Troopers (Metal Gear Solid 4: Guns of the Patriots)
Samus Aran (Metroid)
Alex Mercer (Prototype)
Ratchet (Ratchet and Clank)
Penelope/The Black Knight (Sly Cooper: Thieves in Time)
Doctor Eggman (Sonic the Hedgehog)
Alchemax CEO (Spider-Man: Edge of Time)
Terran Marine Armor (Starcraft)
Crimson Viper (Street Fighter)
Luigi (Super Mario series) via Tanooki Suit, Frog Suit, and other means
Mario (Super Mario series) via Tanooki Suit, Frog Suit, and other means
Tatanga (Super Mario series)
Blood Eagle tribal warriors (Tribes: Ascend)
Diamond Sword tribal warriors (Tribes: Ascend)
Orbital Frame Jehuty (Zone of the Enders)
Mecha Maid (Spinnerette)
Terry McGinnis/Batman (Batman Beyond)
Several members of the Teen Ninjas (Codename: Kids Next Door) in their B.R.A.s (Battle Ready Armor).
Valerie Grey (Danny Phantom) in her ghost-hunting suit.
The Ecto-Skeleton (Danny Phantom) was capable of amplifying Danny's ghost powers 100 fold, but at the cost of drastically exhausting his body.
Skulker (Danny Phantom)
David Xanatos (Gargoyles) in his red battle armor.
When Dib (Invader Zim) has his skeleton was crushed in alternate timeline, his father created for him the MegaBoy 3000. A fusion-powered titanium exoskeleton that "gave give him the strength of ten thousand little boys". In addition this, Zim's tampering with the past caused the exoskeleton to become better armored and equipped with more weapons.