Eaton Tripp Lite SMART500RT1U Line Interactive UPS provides reliable power protection for network equipment servers storage and telecom systems with 500VA 300W capacity. Six NEMA 5-15R outlets deliver backup power surge suppression with 4 millisecond response time. The 1U rackmount design converts to a tower format using the included mounting kit for installation in data centers network closets or office racks. USB and DB9 serial ports plus an expansion slot for an optional network management card enable remote monitoring with Tripp Lite PowerAlert software. Automatic voltage regulation maintains stable AC power during sags and surges while sine wave output ensures compatibility with sensitive electronics. Operating tolerance includes temperatures from 32 to 104 degrees Fahrenheit and non condensing humidity from five to ninety five percent. Circuit breaker protection and battery indicators support uninterrupted operation during outages while a full battery recharge takes 12 hours. Provides up to three minutes runtime at full load to save work and safely shut down equipment. Eaton Tripp Lite SMART500RT1U includes robust surge protection with five hundred sixty seven joules of energy absorption and an equipment protection policy of two hundred fifty thousand dollars. Backed by a three year limited warranty this compact rack tower UPS is ideal for servers networking voice automation point of sale security and telecommunications applications requiring dependable uninterruptible power supply.