The power cord is 3 prong but is missing the 3rd prong. The power center works but it is recommended to get the cord replaced. That is why it is being sold as not working parts only.

The Monster Power Reference PowerCenter HTS 3500 MKII Home Theatre Surge Protector is a high-quality surge protector designed for home theatre systems. With a maximum input current of 11-15 A and a maximum compatible appliance wattage of 1801-2000 W, this surge protector provides reliable protection for your electronic devices. The sleek black metal design, indicator light, on/off switch, and cord make it a convenient and essential component for any home theatre setup. Made by the trusted brand Monster, this surge protector ensures peace of mind for your valuable equipment.