Catalog > Manufacturer > IIT   Product Type Part Number Description Detail Price Processors 3C87 80387 Math Coprocessor - 1002CA4E1FOC 33 mhz CPU $43.00 Processors 4C87DLC-33 80487 Math Coprocessor - 1002FB9E3ECOC 33 mhz CPU $44.00 Processors XC87SLC-33 80387 Math Coprocessor 33 mhz CPU $35.00 Copyright © 1996-2018 Computer Parts Galore. All rights reserved.