This is a QFN 56 64 SMD TURN TO DIP PCB Adapter, The SMD adapter/reduction for SMF components QFN56 or QFN64. It is a Double-sided through-line printed circuit board with a non-stick mask and printing. On one side to brazing the QFN56 square circuit, on the other side of the square circuit QFN64.

Specifications: 

1. Dimensions: 30 x 30 mm.
2. Pitch Patch: 0.5 mm.