Powershield Zapguard PSZ5U2, 5 Way, Power Surge Filter Board, 2 X Usb Connectors Wide, High surge protection, Recessed On/Off Switch, Wide spaced socket to allow for plug packs, 10A Circuit Breaker, Power 2400 Watts, Voltage / Frequency 240 Vac / 50 Hz. The brand new ZapGuard® PSZ5U2 Surge Board will protect your home and office electronics from dangerous surges and spikes and is ideal for charging mobiles, laptops and other small USB powered devices.