The Brewing Academy Presents


Atari 800/XL/XE Hardware


Thank you for wanting to order An Atari 800/XL/XE SD MultiCart or other add on hardware!!


  Please read the descriptions for details.


Shipping is $10 for the United States for up to three items

$15 for one item, $20 for two or more items for the rest of the world

Payment is via PayPal (

Please read payment links carefully!

Californians must add 8% sales tax.


Here are some easy links:


Shipping to United States (but not California)


Atari Ultimate Cartridges:

Atari XL/XE UNO Carts:

R-Time8 Replacements:

Atari XE Keyboard Mylars:


Shipping to California:


Atari Ultimate Cartridges:

Atari XL/XE UNO Carts:

R-Time8 Replacements:

Atari XE Keyboard Mylars:


Shipping to Canada & the rest of the world


Atari Ultimate Cartridges:

Atari XL/XE UNO Carts:

R-Time8 Replacements:

Atari XE Keyboard Mylars:





Atari 800/XL/XE Ultimate Cartridge

The Ultimate Cart runs on all Atari 8-bit machines (400/800/XL/XE/1088XEL). It will accept ROMs up to 1M in size and also run XEX files.  It is the best multicart available for the Atari 8-bit series.   XEGS, Williams, AtariMax, Sic!, SDX, OSS, Megacart: just a few of the diverse banked cartridge formats available for the 8-bit Atari. If I peer into my drawer right now, I can see about a dozen flash carts I’ve collected over the years, all employing incompatible banking schemes. And since I’m a developer, if I want to build – for example – an AtariMax 1Mbit ROM and test it on real hardware, I either have to pull the chip and use my USB programmer, or wait for the flashing software on the A8 to move 128KB of data across the serial interface and onto the flash cart. Recently we’ve seen several cartridges which emulate a wide variety of banking schemes, but getting the ROMs onto the cart has tended to involve a lot of lengthy flash operations. The AtariMax MyIDE II cartridge, meanwhile, supports only a limited number of banking schemes. That’s where the Ultimate SD Cart steps in: running a wide variety of cartridge ROMs straight from an SD card. It comes in a 3D printed case


Atari XL/XE UNO Cart

Want an Ultimate, but don’t want to spend the money for all of the bells & whistles? The UNO Cart is the way to go.  Also, it can run .ATR files!

NOTE:  It will NOT work in a 400 or an 800 or an XL/XE with the Ultimate 1M expansion.  It will NOT run 8mb AtariMax files. It comes in a 3D printed case

R-Time8 Replacement Cartridge

R-Time 8 Cartridge is an automatic realtime clock/calendar that plugs into your cartridge port. It can accept another cartridge into its built-in slot, and its battery should last three to five years. The R-Time 8 uses no cartridge memory and is decoded in memory locations $D5B8-$D5BF. R-Time 8 also supports BASIC, Pascal, AMODEM 7.2R and 1030/850 Express. While the R-Time 8 will work with any Disk Operating System for the Atari, it is most effective with SpartaDOS.  It works with many other Atari DOSes.

SpartaDOS stamps the current time and date on all files as you save them, keeping track of your latest versions. A simple command displays the time and date at the top of your screen. A software real-time clock is written into SpartaDOS, but it's less accurate than the R-Time 8 and must be reset every time you turn on your computer.

It comes in a 3D printed case

Atari XE Keyboard Mylars

            Keyboard not acting correctly?  This may solve the problem.  These Mylars are easily replaceable and will provide years of use. This Simius replacement keyboard mylar is an improved version over the stock Atari Mylar! Each replacement Mylar has a thin coating over the complete Mylar except the conductive key contact pads. This is a high grade manufactured replacement and is less expensive, yet just as high of quality as other replacement keyboard mylars for Atari XE keyboards.

How do you know if this is for you?  Yours needs to be a "Rubber" keyboard produced, among others by Action Technology. In such keyboards, the pressure is absorbed by rubber "caps", the springs are only shocked with some keys, the number of springs can be different. There are known specimens in which the springs are under Shift, SPACE and console keys, but there are also specimens in which only a space is sprung with a spring. Just like the keyboard "on springs", the longest keys are metal rails.

The keyboard housing is twisted with 18 tiny screws.

The conductive film is double-layered and always colorless. Depending on the manufacturer, various subtitles may appear on it, e.g.

The inscriptions on the keys in the latest version (catalog number C070015-004) are printed, which makes them susceptible to abrasion (in earlier versions they are still embossed). Some of the copies are made of apparently different plastic than the type described above, as they do not generally turn yellow, but this is the only advantage. On the upper housing of the keyboard, on both sides of the space there are often inscriptions:

It also happens that this type of keyboard does not have these inscriptions, get to know it then the color of the film and the lack of a spring under the Break key.  If your keyboard Mylar says "Mitsumi" or 56-3217, then this is NOT the replacement for you.