
Tripp Lite INTERNET350SER 350VA 180W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC
Utility feeds fluctuate, and wall power occasionally drops out entirely. We built this desktop unit to sit beside your workstation or media gear, steadying line voltage during sags and stepping in on battery when the circuit goes dark. It gives your system the window it needs to save files and power down cleanly.
Price as the listing last showed it. Listings move, so the figure on the page you land on is the one that counts at checkout.
- PROTECTS FROM BLACKOUTS, BROWNOUTS & TRANSIENT SURGES ALLOWING TIME TO BACK UP CRITICAL FILES: 350VA / 180W Battery Backup Uninterruptible Power Supply (UPS) provides up to 3.3 minutes of runtime for a full load, and 12.2 min of half-load runtime
- 6 OUTLETS POWER & PROTECT CONNECTED PERIPHERALS: 3 Outlets provide UPS Power Backup & Surge Protection (home office & media centers); 3 Outlets offer Surge Protection Only (ideal for printers & other electronics not essential in a blackout)
- FREE MANAGEMENT SOFTWARE / USER REPLACEABLE BATTERIES: Software enables unattended system shutdown & power management. Batteries are user-replaceable allowing you to extend the life of your UPS if the batteries are depleted after the 3-year warranty.
- 3-YEAR WARRANTY, $100,000 INSURANCE: 3-Year Limited Warranty and $100,000 Ultimate Lifetime Insurance for connected equipment.
How this one is built
Battery and surge banks
Receptacles across the top housing split into two groups. One bank draws on internal battery power during an outage, while the neighboring set provides line surge suppression for peripherals like flatbed scanners and desktop printers.
Brownout correction
Utility lines dip when heavy machinery starts or summer heat loads strain the grid. Internal circuitry corrects these voltage drops without switching over to battery reserves, preserving runtime for when the wall feed drops completely.
User serviceable cells
The internal battery compartment opens directly so you can swap depleted cells on your own bench. That keeps the chassis in service at your workstation instead of sending the whole unit out for disposal when the battery ages.
Unattended system shutdown
A communication connection works alongside management software on your workstation. If a blackout hits while you are away from the desk, the system receives the shutdown command automatically and closes active files before the battery depletes.
On the nameplate
These are the figures published for this unit. Where a number is missing here it was not printed on the listing, and we would rather leave the row out than fill it with a guess.
| Outlets | 6 |
|---|---|
| Volt-amps | 350 VA |
| Watts | 180 W |
| Voltage | 120 V |
| Amps | 1.5 A |
| Connector | DB9 |
| Color | black |
| Weight | 7.2 ounces |
| Warranty | 2 year limited warranty |
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