Atari XL/XE Side2

Atari XL/XE with Side 2 The SIDE2 interface, provides hard disk functionality and much more for 8-bit Atari computers, all packaged in a compact cartridge design. The device features: On-board SpartaDOS X Real-Time Clock Compact Flash card slot Switchable loader and SDX modes Programmable "SIDE button" 256KB external flash application cartridge space http://lotharek.pl/product.php?pid=68