The Turbo File devices from ASCII Corporation

ASCII (company)

was a publishing company based in Tokyo, Japan. It became a subsidiary of Kadokawa Group Holdings in 2004, and merged with another Kadokawa subsidiary MediaWorks on April 1, 2008, and became ASCII Media Works. The company published Monthly ASCII as the main publication...

 are external storage devices for saving game positions on various Nintendo

Nintendo

is a multinational corporation located in Kyoto, Japan. Founded on September 23, 1889 by Fusajiro Yamauchi, it produced handmade hanafuda cards. By 1963, the company had tried several small niche businesses, such as a cab company and a love hotel....

 consoles. The devices have been sold only in Japan, and they are mainly supported by ASCII's own games.

Turbofile

For Famicom, released 1986. Contains 8 Kbytes battery-backed SRAM, connects to the Famicom's 15pin controller expansion port.
Supported by:

• Best Play Pro Yakyuu (1988) ASCII (J)
• Best Play Pro Yakyuu '90 (1990) (J)
• Best Play Pro Yakyuu II (1990) (J)
• Best Play Pro Yakyuu Special (1992) (J)
• Castle Excellent (1986) ASCII (J) (early access method without filename) (also supports the Famicom Data Recorder
  Famicom Data Recorder
  Famicom Data Recorder HVC-008 is a compact cassette data interface for the Family Computer.-History:Manufactured by Matsushita/Panasonic for Nintendo, the Drive was released in 1984 only in Japan as an addition to the Family BASIC Keyboard to save data from BASIC programs created by users...
  
  )
• Derby Stallion - Zenkoku Ban (1992) Sonobe Hiroyuki/ASCII (J)
• Downtown - Nekketsu Monogatari (19xx) Technos Japan Corp (J)
• Dungeon Kid (1990) Quest/Pixel (J)
• Fleet Commander (1988) ASCII (J)
• Haja no Fuuin (19xx) ASCII/KGD (J)
• Itadaki Street - Watashi no Mise ni Yottette (1990) ASCII (J)
• Ninjara Hoi! (J)
• Wizardry - Legacy of Llylgamyn (19xx?) (J)
• Wizardry - Proving Grounds of the Mad Overlord (1987) (J)
• Wizardry - The Knight of Diamonds (1991) (J)

Turbofile II

For Famicom. Same as Turbofile, but contains 32 Kbytes battery-backed SRAM, divided into 4 slots of 8 Kbytes, the slots are selectable via a 4-position switch.

Turbo File Adapter

For Super Famicom, released around 1992. Allows to connect a Turbo File or Turbo File II to Super Famicom consoles. Aside from the pin-conversion (15pin Famicom to 7pin Super Famicom controller port), the device does also contain some electronics (adding a SNES-controller ID code, and inventing a more complicated transmission protocol for entering the data transfer mode).
Supported by:

• Ardy Lightfoot
  Ardy Lightfoot
  Ardy Lightfoot is a platform video game released on the Super Nintendo in 1993 in Japan and 1994 in the US. It was developed by ASCII and published by Titus in the US. Ardy Lightfoot is a anthropomorphic creature resembling a fox or cat. He is accompanied by his best friend Pec, a blue penguin...
  
   (1993)
• Derby Stallion II
  Derby Stallion (series)
  The - also known in Japan as - video games are a series of genre-merging horse-racing and business simulation games originally created by ASCII Entertainment, and released by Nintendo...
  
   (1994)
• Derby Stallion III
  Derby Stallion (series)
  The - also known in Japan as - video games are a series of genre-merging horse-racing and business simulation games originally created by ASCII Entertainment, and released by Nintendo...
  
   (1995) (supports both TFII and STF modes)
• Derby Stallion 96
  Derby Stallion (series)
  The - also known in Japan as - video games are a series of genre-merging horse-racing and business simulation games originally created by ASCII Entertainment, and released by Nintendo...
  
   (1996) (supports both TFII and STF modes, plus Satellaview mini FLASH cartridges)
• Derby Stallion 98
  Derby Stallion (series)
  The - also known in Japan as - video games are a series of genre-merging horse-racing and business simulation games originally created by ASCII Entertainment, and released by Nintendo...
  
   (NP
  Nintendo Power (cartridge)
  The flash RAM cartridge was a Japan-only peripheral produced by Nintendo for the Super Famicom and the Game Boy, which allowed owners to download Super Famicom/Game Boy games onto a special flash memory cartridge for less than what the full cartridge would have cost.During the days of the Family...
  
  ) (1998) (supports both TFII and STF modes)
• Down the World: Mervil's Ambition (1994)
• Kakinoki Shogi (1995)
• Wizardry V: Heart of the Maelstrom (1992) (japanese version only - the Turbo File hardware detection is made non-functional in the US-version).

Turbo File Twin

For Super Famicom, released around 1995. Contains 160 Kbytes battery-backed SRAM . 4×8 Kbytes are used in the four TFII-modes (emulating a Turbo File II with Turbo File Adapter), the remaining 128 Kbytes are used for a new SNES-specific "STF" mode. The STF mode is supported by:

• Bahamut Lagoon (1996) Square (INCORRECTLY?! claimed to support Turbo File)
• Daisenryaku Expert WWII: War in Europe (1996) SystemSoftAlpha/ASCII Corp (JP)
• Dark Law: Meaning of Death
  Dark Law: Meaning of Death
  Dark Law: Meaning of Death is a 32-megabit, 1997 Super Famicom release—one of the last in the system's history. An ASCII Corporation production, it is the sequel to Dark Lord. Its battles are similar in form to Treasure Hunter G--they use a power bar that drains with movement and action, except...
  
   (1997) ASCII (JP)
• Derby Stallion III
  Derby Stallion (series)
  The - also known in Japan as - video games are a series of genre-merging horse-racing and business simulation games originally created by ASCII Entertainment, and released by Nintendo...
  
   (1995) (supports both TFII and STF modes)
• Derby Stallion 96
  Derby Stallion (series)
  The - also known in Japan as - video games are a series of genre-merging horse-racing and business simulation games originally created by ASCII Entertainment, and released by Nintendo...
  
   (1996) (supports both TFII and STF modes, plus Satellaview mini FLASH cartridges)
• Derby Stallion 98
  Derby Stallion (series)
  The - also known in Japan as - video games are a series of genre-merging horse-racing and business simulation games originally created by ASCII Entertainment, and released by Nintendo...
  
   (NP
  Nintendo Power (cartridge)
  The flash RAM cartridge was a Japan-only peripheral produced by Nintendo for the Super Famicom and the Game Boy, which allowed owners to download Super Famicom/Game Boy games onto a special flash memory cartridge for less than what the full cartridge would have cost.During the days of the Family...
  
  ) (1998) (supports both TFII and STF modes)
• Gunple - Gunman's Proof (1997) ASCII/Lenar (JP)
• Mini Yonku/4WD Shining Scorpion - Let's & Go!! (1996) KID/ASCII Corp (JP)
• RPG Tsukūru: Super Dante
  RPG Tsukūru: Super Dante
  is a program that allows players to design their own traditional role-playing game on Super Nintendo Entertainment System. It is available only in Japan. Literacy in Japanese is required to fully understand the creation process...
  
  
• RPG Tsukūru 2
  RPG Tsukūru 2
  is a program that allows players to design their own traditional role-playing game on Super Nintendo Entertainment System. It has only been released in Japan...
  
   (supports STF mode, plus Satellaview mini FLASH cartridges)
• Sound Novel Tsukūru
  Sound Novel Tsukuru
  is a Super Famicom graphic novel video game where players can either read or create interactive fiction on their own console systems. The Japanese name, Tsukūru is a pun mixing the Japanese word tsukuru , which means "make" or "create", with tsūru , the Japanese transcription of the English word...
  
   (supports STF mode, plus Satellaview mini FLASH cartridges)
• Wizardry VI: Bane of the Cosmic Forge (1995) (JP) (English)