The arguments stated by westorm are valid. That is why I brought up the Brickwall. Here are the specs:
SPECIFICATIONS
Outlets Available 8 isolated by duplex (6 switched, 2 unswitched)
Load Ratings 15A at 120 volts, single phase, 50-60 Hz; full load regulation 1%.
Receptacle Isolation Low pass filter isolation assures >40db load to load isolation for EFT bursts.
Endurance Test 1,000 surges of 6,000 volts, 3,000 amperes, SRV <400 volts, no failures, L-N (ground wire protection) mode, U.S. Gov't. Mode 1.
Limiters Series surge reactor current limiter; cascaded, auto-tracking dual polarity voltage limiters; dual pulse inverters. Parameters optimized for switch-mode power supply protection.
Clamping Voltage Onset 172 volts nominal; 2 volts above peak line voltage (auto-tracking).
EMI/RFI Filter Response (bi-directional, wave tracking): With 50 ohm Rg load: 3db at 5kHz; 26dB at 100kHz; 38dB at 300kHz.
Let-Through Slew Rate 5,000 volt/µs disturbance reduced to 28v/µs within AC power wave envelope, and less than 10v/µs outside the power wave envelope.
Maximum Applied Surge Pulse Joule Rating Unlimited rating (due to surge current limiting) (8x20µs).
Maximum Applied Surge Pulse Voltage 6,000 volts (1.2 x 50µs) (Industry Standard rating).
Maximum Applied Surge Pulse Current >100,000 amperes (unlimited due to current limiting) (8 x 20µs).
Endurance, C62.41-1991 (formerly IEEE 587) Category B3 (C1) pulses 2kv>100,000; 4kv>10,000; 6kv>1,000 (NRTL verified).
Dimensions 3.9" H x 8.3" W x 4.0" D
Weight 5.25 lbs.
As you can see, the incoming Joules rating is unlimited and it can take a 100,000 amp current pulse and it clamps a 5000V per microsecond pulse to 28V per microsecond.
A Brickwall is a serious piece of equipment not just a Home Depot glorified power bar.