Computer Equipment Surge Protector (610-2122) Features Faxback Doc. # 19533 Detects and protects against a power surge of up to 6,000 Volts and 65,525 Amps in 1 picosecond (1 trillionth of a second). Protects connected equipment from surges of up to 880 joules. Lets you plug up to six devices into your surge protector and leave them all switched on, then use the surge protector's switch to turn them on or off together. Has keyhole slots for easy mounting. Has modular phone jacks for protection against surges through fax and modem telephone wires. The Radio Shack Computer Equipment Surge Protector with Phone/Fax/Modem Protection protects your valuable components from damage caused by sudden increases in electrical power from inside or outside your home. Your surge protector absorbs these "spikes" and "surges" (such as those which occur when you switch air conditioners, refrigerators, and other major appliances on and off). In an unprotected computer, spikes and surges can result in data loss, input/output errors, and even system failure. It also improves the performance of connected equipment by filtering electromagnetic and radio frequency interference. CAUTIONS: This surge protector is not a lightning arrestor and might not protect against lightning-induced voltage surges. Be sure the combined wattage of all connected devices does not exceed 1.800 watts. (CS 1/12/96)