Digital Energy 6 Port USB Charging Station and Surge Protector Strip (in Retail Packaging) 6 Port USB Charging 2.1 Amps of Current Per Port 70 Joules of Protection Total of 7.1 Amps of Current Convenient On/Off Switch An avg home gets 345 power surges per year Power surges are the #1 cause of data loss Lightning Strikes is another reason for power surges There are over 20 million Lighting Strikes recorded per year in the 48contiguous states of the US.