Computer Equipment Surge Protector (610-2123) Features Faxback Doc. # 16460 * Detects and protects against a power surge of up to 6,000 Volts and 36,000 Amps in 1 nanosecond (1 billionth of a second). * Protects connected equipment from surges of up to 450 joules. * Lets you plug up to six devices into your surge protector. * Has modular phone jacks for protection against surges through fax and modem telephone lines. Your 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 1/31/96)