Manufacturer Sega Availability Sega Naomi Chihiro I/O Board Untested, clean board $45.00 Qty: Add to cart Email a friend Question about product? Add to wishlist DetailsProduct specifications Original Sega Naomi arcade Chihrio I/O circuit board, original part number #837-13551-92. See pictures for more details on its condition. This one is truly untested, we found it in a box from a warehouse cleanout. Related Game Title Sega NAOMI System