CyberPower 550VA 330W UPS

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If you have a computer system that you cannot afford to have damaged or interrupted unexpectedly, then the CyberPower CP550SL is exactly what you need.

This uninterruptible power supply will safely shut down your system in the event of a power outage. Its composite integrated circuitry also provides advanced lighting protection as well as safeguards against surges, spikes, sags and other power fluctuations.

The CP550SL also protects against phone and network power disruptions. You can also plug other electronics into this rugged UPS to give the same protection to fax machines, monitors, printers and more.

The CP550SL offers shielding against electromagnetic interference and radio frequency signals so that your power remains clean and your telephone landlines sound clear. You’ll also have plenty of room for power transformers with widely spaced outlets.

Finally, USB connectivity allows you to take full advantage of auto shutdown features with compatible computer systems. When your project is mission critical, connect your system and electronics to the CyberPower CP550SL today!


550VA Output
On a full charge of 8 hours, the CyberPower Home CP550SL will provide 2 minutes (at full load) or 13 minutes (at half load) of battery time, sufficient for closing your editing files and protecting data in case of power outage. The built-in battery delivers 330W output, enough to support entry-level desktop computers.

Automatic Voltage Regulation (AVR)
With Automatic Voltage Regulation (AVR), the CyberPower Home CP550SL serves as an intermediary between the power source and connected devices to stabilize the AC power flow. Guarded by AVR, your devices are fully protected from most power problems via four battery/surge protected outlets and four surge protected outlets.

Dataline Surge Protection
RJ-11 protection (1 in and 2 out) safeguards your connected equipment from damaging surges and spikes that travel along your phone or fax lines.

Transformer-Spaced Outlets
The widely spaced outlets on the back panel of the CyberPower Home CP550SL provide best solutions to add large transformer-based plugs without compromising the utility of other outlets.

Powerpanel PE Power Management Software
Connect the CyberPower Home CP550SL to your computer via the USB port, and install the PowerPanel PE Power Management Software – your system is now worry-free from power outage. The intelligent PowerPanel PE Power Management Software automatically saves and closes your open files and then shuts down the computer in a power outage.

The Power Management software has been fully tested and is compliant with Windows 9x, 2000, Server, XP, and Vista.

Technical Information:


  • Input Voltage Range: 100 – 140 V
  • Input Frequency: 57-63 Hz


  • VA Rating: 550VA
  • Watts: 330Watts
  • Output Voltage: 120V + / – 5%


  • 4 × 5-15R Battery/Surge Protected
  • 4 × 5-15R Surge Protected


Battery Run Time

  • Entry-level PC with 19” LCD (150W) – 14 min.
  • Midrange PC with 19” LCD (300W) – 5 min.
  • Battery Recharge Time: 8 Hours

Interface Port
1 x Serial DB9; 1 x USB 4-pin

Management Software
PowerPanel Power Management

UL 1778, cUL, FCC DOC Class B

Surge Protection:

Data Line Protection
1 x RJ11 (One-in/Two-out)

Surge Energy Rating
890 joules

Three (3) year limited warranty from CyberPower

What’s in the Box:

  • CP550SL UPS
  • Power Management Software
  • RS-232 Serial Cable
  • RJ11 Cable
  • User Manual

Manufacturer Product#: CP550SLG

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Small Dog Review by: hapymayer on June 20th, 2011

I use this UPS to protect my A/V equipment from surge spikes and brown outs. It is extremely annoying when the power flickers and then my satellite receiver needs to take 10 minutes to reboot itself. A great price for a nicely designed, easy to use UPS.