Cablelera ZPFCDHMF-62 6 Outlet Surge Wall Tap 2 USB Electrical Rating 15A/120VAC/60Hz/1800Watts, Surge lines protected 3 Line ( L-N, L-G, N-G), UL Clamping Voltage L-N 500V, L-G 500V, N-G 500V Surge Energy Joule Rating 540 Joules, EMI/RFI Noise Filter Frequency 150KHz-100MHz. Max. Spike Current 36,000 Amps( three line total) Response Time &lt;1 nanosecond, Max. Split Voltage 6 KV, USB Charger 2port (5V/2.1A total)