Part Number: PA-DSO-2803-D420-28/2
Description:
28 pin DIP 0.3" board and two 28 pin 0.420" plugs.
Price: ￥8,500
PDF Datasheet: dip-so.pdf

Top Side; Pins: 28 Pitch: 0.100"
Bottom Side; Pins: 28 Pitch: 0.050"