NEC PC-9801 9821 PC-98 Original Working Mouse. Tested on my personal PC-9821 na13 and works perfectly and feels great. Could use some Retrobrite  but still fits nicely with vintage beige colored computers.

ONLY compatible with japanese PC-98 computers. Tested and working perfectly but since item is vintage I will sell as is, no returns. Also not responsible for anything once shipped (customs fees, etc etc).