Prime PB003124 Home Theater/Satellite TV 8-Outlet 2250-Joule Surge Protector RJ11 - telephone line protection for your satellite system, dial-up modem, and fax machine Snug Plug low-profile plug saves space and allows furniture and equipment to be placed closer to the wall. Transformer-spaced outlet provide room for large, AC block-style plugs, without covering an unused outlet Auto-Shutdown when surge protector absorbs potentially damaging current, this feature shuts power down at the wall, preventing power from passing through the surge protector to the connected equipment.