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Tripp Lite 550VA Line-Interactive UPS, 300W, AVR, 120V, USB (SMART550USB2)

Tripp Lite SMART550USB2

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Volume Discounts
Contact us and save even more if you meet these Big Deal qualifications.
Purchase a minimum of $2,500 of hardware, or $500 of cables to qualify.

Not enough in stock? No problem! We can ship your large quantity order direct from Tripp Lite's warehouse. These orders typically ship within 2-3 business days.

Model SMART550USB2

Provantage Code:  TRPL20W

Condition:  Factory New

  • Product Type: Line-interactive UPS
  • Limited Warranty: 3 Year
  • Form Factor: Tower
  • Load Capacity (VA): 550 VA
  • Load Capacity (Watt): 300 W

Big DealsSatisfaction Guaranteed

ComputingPower Equipment / AccessoriesUPS - General Purpose


Tripp Lite SMART550USB2 Specifications

    Tripp Lite 550VA Line-Interactive UPS, 300W, AVR, 120V, USB (SMART550USB2)

At a Glance

    Rear View
    • Line-interactive UPS provides basic battery backup with automatic voltage regulation for your office computer or home theater setup.
    • Protects equipment against blackouts, brownouts, overvoltages, surges and line noise
    • AVR battery backup allows time to save files and safely shut down during blackouts
    • 6 NEMA 5-15R outlets provide power to PC, home theater or digital signage equipment
    • Easy-to-see LEDs indicate operating mode, low battery, overload and other vital data
    • High >95% efficiency with low BTU ratings saves power and lowers your energy costs
    • 3-year limited warranty
    • $100,000 Ultimate Lifetime Insurance



    550VA/300W/120V Battery Backup for PCs, Home Theater or Digital Signage

    This 120V UPS with AVR protection provides reliable battery backup and AC power protection against blackouts, brownouts, overvoltages, surges and line noise that can damage valuable electronics or destroy data. The six-outlet 120V battery backup is ideal protection for your home office, media center or commerce components, including computers, routers, printers, HDTVs, Blu-ray players, game consoles, ATMs, security systems and digital signage equipment.

    Allows Time to Back Up Critical Files During a Blackout

    Backup support allows you to work through short power failures, and gives you enough time to safely save files and shut down your system in case of a prolonged blackout. Backup time varies according to load, but the line-interactive UPS system should keep an energy-efficient desktop computer with small LCD monitor powered as long as 45 minutes. During normal operation, incoming utility power keeps the replaceable internal battery fully charged, so backup power will always be available.

    Connects Your Equipment to 6 NEMA 5-15R Outlets

    Four 5-15R outlets provide both battery backup and surge protection for your computer, monitor and other crucial components. The other two 5-15R outlets are surge-protected only for printers, scanners and other non-essential equipment. A high >95% line mode efficiency rating reduces BTU emissions, energy consumption and, ultimately, your energy costs.

    Automatic Voltage Regulation (AVR) Corrects Low- and High-Voltage Conditions

    AVR protects your equipment from incremental hardware damage, data loss and performance problems caused by brownouts and overvoltages. The SMART550USB2 can correct brownouts as low as 89V and overvoltages as high as 145V back to nominal 120V power without drawing on the battery backup needed to support your equipment during a blackout.

    316 Joules Fight Back Against Unexpected Power Surges

    A 316-joule surge suppression rating protects connected components from the harmful effects of power surges.

    Combats Electromagnetic Interference That Can Harm Equipment

    Various electromagnetic and radio sources found in virtually every home and business can cause disruptive interference on the AC line. Known as EMI (electromagnetic interference) and RFI (radio frequency interference), this line noise is a common cause of performance problems and can lead to incremental hardware damage, data corruption and audio/video transmission problems. The SMART550USB2 incorporates technology that filters out disruptive line noise so that it won't affect your equipment.

    Easy-to-See LEDs Report Real Time UPS and Power Status

    Front-panel LEDs provide UPS and site power information when the SMART550USB2 is operating in either on-line or battery power mode. They indicate operating mode, low battery, overload and fault condition. An audible alarm will sound in case of low battery, excessive load and fault condition.

    HID-Compliant USB Port Allows for Automatic Saves and Shutdowns

    This port connects the SMART550USB2 to a computer running Tripp Lite's free downloadable PowerAlert® software to enable safe unattended file saves and system shutdown in case of a prolonged power failure. USB cable is included. The UPS works with Windows, Mac and Linux operating systems.

    Includes Power Protection for your Phone and Network Lines

    Dual RJ45 jacks protect equipment against surges over a single telephone or network line.


    Desktop Computer  –  Electronic Device  –  Gaming Console  –  Router  –  Television  –  ATM  –  Printer  –  Blu-ray Player  –  DVR  –  Digital Signage  –  Home Theater  –  Office  –  Security System  –  Monitor  –  Media Center  –  Scanner

Status Indicators

    Front View

    3 LED Indicators:

    • Line power availability (green)
    • Battery power mode (yellow)
    • Low battery (red)
    • Overload (red)
    • Replace-battery (red)
    • Fault mode (red)

Package Contents


General Information
Product NameTripp Lite 550VA Line-Interactive UPS, 300W, AVR, 120V, USB (SMART550USB2)
Product ModelSMART550USB2
Product TypeLine-interactive UPS
Technical Information
Plug / Connector TypeNEMA 5-15P
Receptacles6 x NEMA 5-15R
Transfer Time6 ms
Battery Information
Backup / Run Time (Full Load)3.50 Minute
Typical Battery Recharge Time8 Hour
Power Description
Load Capacity550 VA/300 W
Input Voltage120 V AC
Input Voltage Range110 V AC - 120 V AC
Output Voltage110 V AC

115 V AC

120 V AC

Physical Characteristics
Form FactorTower
Limited Warranty3 Year
Environmentally FriendlyYes
Environmental CertificationRoHS
Other Information
PhaseSingle Phase
Backup / Run Time (Half Load)12 Minute
Load Capacity (VA)550 VA
Load Capacity (Watt)300 W
Waveform TypePulse-width Modulated Sine Wave
Input Frequency60 Hz
Battery Size12V
Maximum Operating Temperature104°F (40°C)
EMI / RFI Noise FilterYes
Replaceable BatteryYes
DC System Voltage12 V DC
Energy SavingGreen Energy-Saving
USB (HID Compliant) PortYes
Maximum Operating Elevation9842.52 ft
Number of Battery & Surge Outlets4
Storage Relative Humidity- 90%
Storage Temperature5°F (-15°C) - 113°F (45°C)
Number of Surge-only Outlets2
Output Frequency50 Hz to 60 Hz
AlarmLow Battery



Replace Battery

Dataline ProtectionRJ-45
Surge Energy Rating316 J
Thermal Dissipation12.60 W
Supplies/Accessories for Tripp Lite SMART550USB2

Tripp Lite RBC51 Replacement Battery 51

Mfg Part# RBC51

Considering a Volume Purchase?
You may be able to save even more on your order if you meet the following Tripp Lite BIG DEAL qualifications:

Purchase a minimum of $2,500 of hardware, or $500 of cables to qualify.

Not enough in stock? No problem! We can ship your large quantity order direct from Tripp Lite's warehouse. These orders typically ship within 2-3 business days.

Shop with confidence! Provantage is an authorized Tripp Lite dealer.

Visit the Manufacturer
Learn more by visiting the manufacturer's website.

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Tripp Lite Model SMART550USB2