When you live in an apartment with ungrounded outlets, you are not at liberty to upgrade the electrical system and you cannot use typical surge protectors because they require the ground line. Your sensitive electronics are left vulnerable to surge damage. Protection from even worst case surges, however, can be achieved despite this harsh environment when you put Zero Surge protection in place. They do not use the ground line at all and are a safe, effective choice for ungrounded environments. Extend the life of your computer, home theater equipment, gaming hardware, musical equipment, etc. with Zero Surge protection.