Protect your laptop, electronic notepad or personal organizer from surges and line noise while working on the road with this three-outlet surge suppressor. Compact size and concealable power cord make it extremely portable. Two USB ports keep your cell phone, MP3 players and other portable devices charged at full power. Diagnostic LED confirms surge suppression status. Number of Outlets: 3; Joules Of Surge Protection: 540 J; Lines: N/A; Multimedia Protection: N/A.