Key specifications/special features: specifications: Base material: ptfe, pcb, fr4 Layer count: 4layer board Board thickness: 1.6mm Copper thickness: 1oz Surface finishing: enig Solder mask color: green Available specifications: Base materials: fr4, aluminum, fpc and copper Copper thickness: 0.5oz (minimum) Copper thickness: 4oz (minimum) Board thickness: 0.2mm (minimum) Board thickness: 3.2mm (maximum) Surface finishing: hal, enig, osp, gold finger and tin chemistry Possible solder mask colors: green, black, white, yellow, blue, red and more Board dimensions: 600 x 1, 000mm