CyberPower CP500PFCRM1U PFC Sinewave UPS - Rackmount Backup

Our review of the CyberPower CP500PFCRM1U finds it best suited for small racks and edge devices that need reliable, Active PFCcompatible battery backup without a deep footprint. The biggest reason to buy is its sinewave output and compact 1U rack depth of just 9.04 in, which makes it one of the few 500VA UPS units that will fit short-depth enclosures while preserving compatibility with modern power supplies. The unit combines surge protection, AVR correction and a clear multifunction LCD to reduce surprise downtime for security, A/V and networking gear.

Key Features

• 500VA/300W Sinewave output: Delivers true sinewave battery power to support Active PFC and conventional power supplies without causing instability in sensitive equipment.
• Compact 1U rackmount: At 9.04 in depth the UPS fits tight rack spaces, making it practical for network closets and compact A/V cabinets.
• 6 NEMA 5-15R outlets: Provides four battery backup plus surge outlets and two additional surge-only outlets so noncritical devices can remain protected without drawing runtime.
• Automatic Voltage Regulation (AVR): Corrects minor voltage fluctuations without switching to battery, extending battery life and preventing unnecessary runtime use.
• Multifunction LCD panel: Shows runtime, battery status and power conditions at a glance to help spot issues before they impact critical systems.
• UL safety certified and warranty: Backed by a 3 year warranty including batteries with a $300,000 connected equipment guarantee for added peace of mind.

Who It's For

The CP500PFCRM1U is aimed at small business IT administrators, home lab owners and integrators who need a compact, rackable UPS that supports Active PFC power supplies used in modern networking and A/V gear. Its sinewave output and AVR make it a sensible choice where clean power and small form factor are priorities.

It is not intended for highload servers or infrastructure that demand larger runtime or higher wattage; those users should look for higher capacity or longer runtime systems. Also, remote management requires an optional management card, so teams needing builtin network monitoring should budget for the accessory.

Pros & Cons

Pros

• True sinewave battery output ensures compatibility with Active PFC power supplies and sensitive electronics.
• Short 9.04 in depth and 1U rackmount format fits small racks and tight spaces.
• AVR reduces unnecessary battery use by correcting minor voltage swings without switching to battery.
• Clear multifunction LCD provides useful runtime and status information at a glance.

Cons

• 500VA/300W capacity limits runtime for multiple or high-draw devices, so larger installations need a higher-capacity unit.
• Remote management requires an optional RMCARD205 or cloud card, which is sold separately.

Specifications

Output capacity	500VA / 300W
Output waveform	Sinewave (PFC compatible)
Outlets	6 NEMA 5-15R (4 battery+surge, 2 surge only)
Form factor	1U rackmount, 9.04 in depth
Input plug	15A NEMA 5-15P straight plug with 10 ft power cord
Features	AVR, EMI/RFI filtration, multifunction LCD
Warranty & guarantee	3 year warranty including batteries; $300,000 connected equipment guarantee

Our Verdict

The CP500PFCRM1U is a practical, compact UPS for small racks and edge equipment that require a clean sinewave backup and AVR protection. It represents good value for users who need Active PFC compatibility and space-conscious rackmounting, though those needing longer runtime or greater wattage should choose a larger unit. Overall, it is a thoughtfully designed 500VA option for networking, security and A/V installations.

Frequently Asked Questions

Does this UPS support Active PFC power supplies?
Yes, the unit provides true sinewave output specifically to maintain compatibility with Active PFC and conventional power supplies.

Can I monitor the UPS remotely out of the box?
Remote management requires an optional RMCARD205 or compatible cloud management card, which is not included and must be purchased separately.

Will it fit in a short-depth rack?
Yes, the CP500PFCRM1U is designed with a 9.04 in depth to fit short-depth rack installations.