Before delivery,we guarantee that every item will be tested and carefully packed with individual Anti-static bubble bag and separated by stiff cardboards in carton boxes. Total weight: 1 piece motherboard about 0.4~0.5KG; 20pcs motherboards about 8.5KG; 100pcs motherboards about 40~45KG; 200pcs motherboards about 80~85KG. Carton size: 20*20*8cm carton for 1~2 pcs motherboard; 47*30.3*23.5cm carton for 10pcs motherboard; 50*49*20cm carton for 20~30pcs motherboard.