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Compact desktop UPS unit with textured black finish, multiple outlets and USB port

Tripp Lite

Tripp Lite 550VA 300W Desktop UPS 120V USB RJ11

SKU CH-4G1Y-7AF46

Desktop UPS with 550 VA capacity and 300 W output protects computers, modems and phones, providing 9 minutes runtime at 150 W load via USB and RJ11 connections

  • Line-interactive AVR stabilises voltage without using battery power
  • 550 VA / 300 W capacity backs desktop PCs and networking gear
  • 9 minutes runtime at 150 W half load saves work during outages
  • Surge-only outlets protect peripherals without draining backup runtime
  • USB HID port enables automatic shutdown via OS or PowerAlert software

What this UPS does

The Tripp Lite 550VA line-interactive UPS supplies battery backup and surge protection for desktop computers, networking gear and phone or DSL lines. It delivers 300 W of output power and uses automatic voltage regulation to correct brownouts and overvoltages without draining the battery. The unit is designed for home-office and small-business workstations that need graceful shutdown during short outages.

Installation and common issues

Connect the UPS to a 120 V 50/60 Hz wall outlet, then plug critical devices into the battery-backup sockets and peripherals into the surge-only sockets. Use the HID-compliant USB port with the operating system’s built-in power management or the free PowerAlert software for monitoring and automated shutdown. The RJ11 jack protects a single phone, fax or DSL line. Overloading the battery-backed outlets will shorten runtime and may trip the internal breaker.

Runtime and interface limits

At a 150 W load the battery provides approximately 9 minutes of runtime, which is only enough to save work and shut down a typical desktop. The USB link is limited to HID-class communication, so advanced network-management cards are not supported. The 120 V input and output restrict use to North American mains voltages, and the single RJ11 line protects only one telephone or DSL connection.

Highlights

  • Line-interactive AVR stabilises voltage without using battery power
  • 550 VA / 300 W capacity backs desktop PCs and networking gear
  • 9 minutes runtime at 150 W half load saves work during outages
  • Surge-only outlets protect peripherals without draining backup runtime
  • USB HID port enables automatic shutdown via OS or PowerAlert software

Specifications

BrandTRIPP LITE

Questions about this item

How can I verify the 550 VA UPS is working correctly after connecting it via USB?

Connect the USB cable to the computer and use the built-in power management or Tripp Lite PowerAlert software to confirm the UPS reports battery status and AVR operation.

What comes in the box and what must I purchase separately for the 120 V desktop UPS?

The UPS unit with USB and RJ11 ports is included; any additional USB or phone cables beyond the supplied ones must be purchased separately.

Which capacity should I choose for a load near 150 W to get the 9 minute half-load runtime?

The 550 VA / 300 W model provides 9 minutes at 150 W half load; select this version when your connected equipment draws approximately 150 W.

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