Although other companies use a similar design, we've found that the Accell Home or Away Surge Protector and the Tripp Lite Protect It 3-Outlet Surge Protector offer the best capabilities at a price that’s usually lower than that of the competition. AdvertisementIf you want surge protection on the go, or prefer a power strip with a cord, the Protect It 3-Outlet Travel-Size Surge Protector is the best choice. It’s the only portable model we tested that is capable of clamping down surges as well as full-size surge protectors—other portable models we tested let more than twice as much surge voltage through, which could potentially damage anything plugged into them. Also great Allocacoc PowerCube ReWirable USB For traveling abroad With four international plugs and a protection rating of 100 to 250 volts, the PowerCube charger is a convenient option for overseas travel. If you’re going to be traveling outside of North America, we recommend Allocacoc’s PowerCube ReWirable USB.