This adapter is for chip QFP44-DIP conversion adapter. It comes with two base boards. One base board converts all MCS-51 series QFP44 chip to DIP40 package, so that to program QFP44 chip on a DIP40 programmer. Another base board is for standard pin conversion.
The part number:SA245A, CNV-QFP-MPU51, WL-TQFP44-U1