The archives 400+ is the ultimate box for storing and carrying large numbers of cards and/or multiple cases in many different ways! it's modular design is perfectly dimensioned to hold an almost endless variety of Ultimate Guard products. Here are just a few examples of what this amazing box can hold: - 430+ double-sleeved cards - 500+ single-sleeved cards - 850+ unsleeved cards - 175+ top-loaders - 5x boulder deck case 80+ - 4x boulder deck case 100+ - 3x flip deck case 80+ (plus 1x boulder deck case 80+ or 1x deck case 80+) - 5x deck case 80+