Eurocard DIN 41612 Prototyping board PCB FR4 Double sided 160x100mm
External size: 160x100mm. Board Connector / Footprint: DIN 41612 2x32pin or 3x32pin 64 / 96 Pin connector. These are high quality FR4 boards and also most likely cheapest you can buy. Mounting holes: Standard pitch DIN 64612.