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Untested. Being sold as is for collections
Intel A80387DX-16 FPU Math Coprocessor 16MHz PGA68 Vintage 387 Processor
$20.00
Intel i387 DX Math Co-processor A80387DX 16-33 Rare Vintage CPU - Tested Working
$27.90
Intel A80387DX-16 FPU Math Coprocessor 16MHz PGA68 Vintage 387 Processor
$25.00
Documentation