Check the listing for details. Atari 800 10K ROM Operating System PCB Tested Working No Case. Listed at 14.95 USD. Atari 800 10K ROM Printed Circuit Board Tested with all board parts Plastic case not included. The auction does NOT include the 16K RAM in the plastic case or 16K RAM in the case, shown in the picture. Made and assembled by Atari Printed Circuit Board(PCB). We bought these direct from Atari from their Service Center. The 10K ROM PCB is just one of the several PCB inside of an Atari 800. Please note the Atari 400 does not use a 10K ROM board. On the Atari 400 the ROM chips are mounted on the Main/mother PCB. "If you do not understand something about an auction then PLEASE contact us and get an answer you understand before purchasing. EBAY NOW CHARGES FEES ON SHIPPING AND HANDLING. WHEN YOU BUY MULTIPLE ITEMS AND PAY BEFORE WE SEND A COMBINED INVOICE YOU MAY PAY A LOT OF EXTRA SHIPPING."