unit packaging size for 1pc of GS8512-EX.12 Isolated Barrier: outer carton for 6 pcs of GS8512-EX.12 Isolated Barrier: 17*15*13 cm outer carton for 12 pcs of GS8512-EX.12 Isolated Barrier: 30*18*15 cm outer carton for 30 pcs of GS8512-EX.12 Isolated Barrier: 35*29*14 cm outer carton for 60 pcs of GS8512-EX.12 Isolated Barrier: 35*29*26 cm