General Knoppix support for those who've read the FAQ at the Wiki
Atari 400/800/XL/XE Computer SIO2PC - PC/Mac Disk Drive Emulator Adapter/Device
$15.25
Atari Power Cube 800XL, 600XL, 65XE, 130XE, XEGS USB-C Power Supply PSU
$11.25
Atari SIO2PC *USB-C* PC/Mac Disk Drive Emulator Adapter/Device XL/XE 400 800
$15.25
Atari 400 800 SALT Diagnostics Orange cart Cartridge Diags TE15644 Ver 2.05
$25.99
Vintage Atari 2600 VCS Video Computer System Case Shell only Sleeper Project
$24.99
Texas Instruments TI-99/4A dual Atari Joystick Adapter with case (NEW)
$20.99
A8PicoCart Kit Atari 130 65XE 800XL 600XL XEGS unocart clone multicart game
$15.85
Atari 1050 Floppy Disk Drive Untested, No Power Supply & 410 Recorder Cassette
$79.95
Atari 800xl 65xe 130xe XEGS Pico. A8PicoCart. Loaded with ROMs White/White
$25.00
Atari 800xl 65xe 130xe XEGS Pico. A8PicoCart. Loaded with ROMs Lt.Gray/Black
$25.00