Non-European Format. Size: 114.3 x 165.1 mm (4.5 Inch x 6.5 Inch). Material thickness: 1.6 mm FR4 epoxy optical fibre. Copper coating 35 µm on both sides, with through hole. Hole pattern: 2.54 x 2.54 mm (1//20 Inch). 40 x 60 bore hole rows. 40 x 56 2 mm²