Memoryexpansionpak box

Box of the Expansion Pak.

The Expansion Pak (拡張パック ,Kakuchō Pakku) allows the random access memory (RAM) of the Nintendo 64 console to increase from 4MB (megabytes) to 8MB of contiguous main memory. Game developers can take advantage of the increased memory in several ways, including making games that are more visually appealing. The add-on was released in 1998 and contains 4 MB RDRA, the same type of memory used inside the console itself. By increasing system memory, there is potential for enhancements to games designed with the added RAM storage in mind. The Expansion Pak is installed in a port on top of the Nintendo 64 and replaces the pre-installed Jumper Pak, which is simply a RAMBUS terminator.

A few games, including Rare's Donkey Kong 64 and Nintendo's The Legend of Zelda: Majora's Mask require it to run. Capcom's Resident Evil 2 used the Expansion Pak for making areas of the game and monsters more detailed. Perfect Dark had limited gameplay options when the Expansion Pak was not present.
Expansion pack n64 4mb

Front of A 3rd party Expansion Pak.

Supporting games usually offered higher video resolutions or higher textures and/or higher color depth. For example, the Nintendo 64 all-remade version of Quake II features higher color depth but not a higher resolution when using the Expansion Pak. It was used in StarCraft 64 to unlock levels from the popular Brood War add-on for the PC version of the game. Many games such as Castlevania: Legacy of Darkness and Indiana Jones and the Infernal Machine optionally used the Expansion Pak to add a high resolution 640x480 display mode for games, while other games saw the benefit of a smoother frame rate. The Expansion Pak was available separately as well as bundled with Donkey Kong 64. In Japan, the Expansion Pak was additionally bundled with Zelda: Majora's Mask and Perfect Dark, though the games were also available separately in other regions.

The RAM in the expansion pack runs at a slower speed than the system RAM due to increased latencies in accessing the accessory. It is therefore less useful than simply doubling the amount of RAM.

List of games that support the N64 Expansion PakEdit

Title Expansion Pak Required? Notes
Aidyn Chronicles: The First Mage No
All-Star Baseball 2000 No
All-Star Baseball 2001 No
Armorines: Project S.W.A.R.M. No
Army Men: Air Combat No
Army Men: Sarge's Heroes No
Army Men: Sarge's Heroes 2 No
Battlezone: Rise of the Black Dogs No
Castlevania: Legacy of Darkness No
Command & Conquer No The Expansion Pak is required for high-resolution map textures.
CyberTiger No
Daikatana No
Donkey Kong 64 Yes
Duke Nukem: Zero Hour No
Excitebike 64 No
F-1 World Grand Prix II No
Gauntlet Legends No The Expansion Pak is required for 4 player multiplayer.
Hybrid Heaven No
Hydro Thunder No The Expansion Pak is required for 3 and 4 player multiplayer.
Indiana Jones and the Infernal Machine No
International Track & Field 2000 No
Jeremy McGrath Supercross 2000 No
Ken Griffey, Jr.'s Slugfest No
The Legend of Zelda: Majora's Mask Yes
Madden NFL 2000 No
Madden NFL 2001 No
Madden NFL 2002 No
NBA Jam 2000 No Only the PAL Version signifies its Expansion Pak compatibility on the box.
NFL Quarterback Club '99 No
NFL Quarterback Club 2000 No
Nuclear Strike 64 No
Perfect Dark Yes The Expansion Pak is required for the single player, co-operative and counter-operative campaigns, as well as multiplayer.
Quake II No
Rayman 2: The Great Escape No
Re-Volt No Unlocks Medium Resolution mode (doubles resolution), cheat code 'FLYBOY' enables higher quality.
Resident Evil 2 No
Road Rash 64 No The Expansion Pak increases the frame rate from 30FPS to 60FPS.
Roadsters No
San Francisco Rush 2049 No The Expansion Pak is required for Track 6, the Advanced Circuit and music during Arcade races.
Shadow Man No
Spider-Man No
South Park No
StarCraft 64 Yes The Expansion Pak is required for the Brood War missions.
Star Wars: Episode I: Battle for Naboo No
Star Wars: Episode 1 Racer No
Star Wars: Rogue Squadron No Increases the resolution to 640 x 480 pixels.
The World Is Not Enough No
Tony Hawk's Pro Skater No
Tony Hawk's Pro Skater 2 No
Tony Hawk's Pro Skater 3 No
Top Gear Hyper Bike No
Top Gear Overdrive No
Top Gear Rally 2 No
Turok 2: Seeds of Evil No The Expansion Pak is required for high-resolution map textures.
Turok 3: Shadow of Oblivion No
Turok: Rage Wars No
Vigilante 8 No
Vigilante 8: 2nd Offense No
Xena: Warrior Princess: The Talisman of Fate No