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)
X (Mega Man X 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.
Soldiers (Call of Duty Advanced Warfare) have high tech Exo suits to overcome many obstacles.
Master Chief (Halo)
When X (Mega Man X series) wears his First Armor, he is able to dash through the air, take less damage, fire a more powerful Charge Shot, break blocks with his head, and even fire the Hadouken.
In his Second Armor, X can dash through the air, take less damage, fire more powerful Charge Shots, finds secret passages with his Item Tracer, yield unlimited ammo, unleahsh his Giga Crash attack, and even perform the Shouryuken.
In his Third Armor, X can use the Variable Air Dash to double jump, take less damage, fire more powerful Charge Shots, locating items with his Item Radar, and use his Beam Saber. Should he collect the Hyper Chip, X can turn the Third Armor into the Hyper Armor for more power.
In his Fourth Armor, X can dash and hover in the air, take less damage, fire more powerful Charge Shots, fire endless uncharged special weapons, and use his incredibly powerful Nova Strike.
In his Falcon Armor, X can fire more of his special weapons, take less damage, fire his Spear Charged Shot that hat can penetrate surfaces, terrain and shields, use the Giga Attack, and execute Free Move to stay airborne.
In his Blade Armor, X an fire more of his special weapons, take less damage, fire his Plasma Shot, and use his Mach Dash to dash through the air. Also, with Z-Saber mounted to his X-Buster, he can utilize the Charged Saber to unleash powerful slash attack that can destroy enemy projectiles.
In his Ultimate Armor, X posseses all of the enhancements provided by the Fourth Armor with much greater power, and can use the Nova Strike for an unlimited amont of time.
Gray Fox (Metal Gear series)
Raiden (Metal Gear series)
A Haven Trooper (Metal Gear Solid 4: Guns of the Patriots)
Samus Aran (Metroid) wearing her trademark power suit.
The Black Knight (Sly Cooper: Thieves in Time) is a mechanical armor Penelope created who's using a rocket launcher ...
.. and later upgraded with a laser and a shield.
The Nega Egg Wisp (Sonic the Hedgehog) is one of Eggman's final battle suits.
A male Inkling (Splatoon) wearing the Power Mask, granting improved defense, Power Armor, granting a reduced respawn time, and Power Boots, granting reduced ink consumption by their main weapon.
Terran Marines (Starcraft) have a very powerful terranial armor.