X2 may refer to:

Computers

  • X2 (protocol), a pre-V.90 standard for 56k downstream modem communications
  • Athlon 64 X2, the first dual-core desktop CPU manufactured by AMD
  • A two-lane PCI Express, slot
  • A type of optical transceiver for 10 Gigabit Ethernet
  • X2, a transport interface used to connect enodeBs in a LTE/4G network

Vehicles and transportation

Aircraft, spacecraft and rockets

  • Bell X-2, an experimental supersonic aircraft
  • Mitsubishi X-2 Shinshin, a Japanese experimental stealth fighter (formerly known as ATD-X)
  • Orba, also known as X-2, a planned British satellite
  • Sikorsky X2, a prototype, coaxial high-speed helicopter
  • Skycycle X-2, a rocket used by Evel Knievel
  • Skydio X2, an quadcopter camera drone
  • SpaceShipOne flight 17P, also known as X2, the second Ansari X Prize flight
  • X-2 Dragonfly, the company designation of the Rotor-Craft XR-11 experimental helicopter of the late 1940s
  • X-2 Rocket, the spacecraft used in Mission: Space in Epcot Center, Orlando, Florida

Watercraft

  • Bathyscaphe Trieste II, also known as X-2, the US Navy bathyscaphe based on the Trieste
  • HMS X2, a Royal Navy submarine
  • Kawasaki X2, a personal water craft

Other vehicles and transportation

  • BMW X2, a SUV vehicle produced by BMW
  • North Wing Sport X2, an American ultralight trike design
  • SJ X2, used for the X 2000 train system in Sweden
  • X2 (New York City bus), a bus route
  • Benning Road–H Street Line, a Metrobus route in Washington, D.C., designated X2

Video games

  • Dance Dance Revolution X2, a 2010 music video game for the PlayStation 2
  • Final Fantasy X-2, a 2003 role-playing video game
  • Mega Man X2, a 1994 platform game
  • X2: The Threat, a 2003 space simulation game
  • X2: Wolverine's Revenge, a 2003 action video game
  • X2 (video game), a 1997 video game
  • X2, the main character in Star Wars Battlefront: Elite Squadron

Film

  • X2 (film), a 2003 sequel to the 2000 film X-Men
  • XXX: State of the Union, also known as X2 or xXx²: The Next Level, a 2005 American film

Phones

  • Nokia X2, feature phone/smartphone
  • Sendo X2, a Series 60 mobile phone
  • Sony Ericsson Xperia X2, smartphone

Other

  • X2 (roller coaster), at Six Flags Magic Mountain
  • Chi-squared distribution, a theoretical probability distribution in inferential statistics
  • Square (algebra), also known as the algebraic square
  • Keyboard sold by Korg in the 1990s
  • X-2 Counter Espionage Branch, counterintelligence branch of the Office of Strategic Services

See also

  • 2X (disambiguation)