3 layer Hybrid Multilayer PCB 107.6*120.44 mm,6pcs/array 1.65 mm thick FR4+RO4350B 10mil 1/0.5/1 oz copper ENIG,Green soldermask top only ,White silkscreen top only 2 layer Long PCB 508*114.3 mm 1.6 mm thick,FR4,2/2 oz copper ENIG,Black soldermask,White silkscreen 8 layer Impedance controlled PCB 96*86 mm,4pcs/array 1.6 mm thick ,Special stack up FR4 TG170 1 oz copper outer layers 0.5 oz copper inner layers ENIG,Red soldermask,White silkscreen