ElCheapoSD for Atari Lynx lets you play ROMs and home-brew games from an SD card. Store all your favorite games on a single SD card and choose what you want to play via a menu on your Lynx.

Features -

• Near-instant load times for most ROMs
• ROM size up to 512kbyte (256 blocks)
• LNX, LYX and O (BLL) format ROMs
• 128b (1024 bit) 93C46 EEPROM saves
• Firmware upgradable via the SD card, we ship ElCheapoSD carts with the 0.08 firmware pre-installed
• FAT32 SD card format
• Black 3D printed PETG shell/casing
• Spring loaded SD card mechanism for easy release
• Curved lip design just like the original Atari Lynx game cartridges
• Works in both Lynx model 1 and model 2

Note: In 2025 the shell/case was changed to a 3D printed version made out of PETG plastic.

Note: You will need a compatible SD card to use this cartridge, 8Gb cards are recommended for maximum compatibility. We sell a SD card that is pre-loaded with our latest Menu Loader and a great selection of homebrew ROMs, and is guaranteed to be compatible with the ElCheapoSD.

Note: Slight variations in colour and pattern can occur due to the nature of the 3D printing process used for the cartridge shell/casing.

Options for purchase - We offer a number of purchase options for the ElCheapoSD -

• Bare bones - Just the cartridge itself, in it's plastic shell/casing, no sticker, no box, no frills
• Cartridge + Sticker - The cartridge in its plastic shell/casing, with a slick sticker applied over the bare PCB, a more appealing option
• Boxed - Same as the cartridge + sticker option, but comes in a standard sized Atari Lynx game box that includes a stand for the cartridge inside, get this to show off

Get the K-Retro pre-loaded SD card that is guaranteed to work with the ElCheapoSD and save yourself the hassle!

Note on Hispeedido Compatibility

Hispeedito screen kits have a timing fault that causes games loaded to show additional pixels on the left side of the screen and to have some missing pixels in the rest of the image. This issue has been reported with both ElCheapoSD loaded ROMs, as well as with original game cartridges on the Lynx.

We advise to avoid using Hispeedito kits in your Lynx. The BennVenn IPS screen kit (for Lynx 1 and for Lynx 2) we sell does not have this issue and is fully compatibly with Lynx hardware and software.