Complex sentence: Home consoles now commonly use hard disk drive storage for saved games, though most portable gaming systems still rely on custom memory cartridges to store program data, due to their low power consumption, smaller physical size and reduced mechanical complexity.
Split into simpler sentences: Home consoles now commonly use hard disk drive storage for saved games. Though most portable gaming systems still rely on custom memory cartridges to store program data, due to their low power consumption, smaller physical size and reduced mechanical complexity.