Uninterruptible power supply CyberPower CP900EPFCLCD Standby (Offline) 0.9 kVA 540 W 6 AC outlets

The CyberPower CP900EPFCLCD is a standby (offline) uninterruptible power supply designed to deliver 0.9 kVA (540 W) of protected output power for small servers, workstations and network equipment. Housed in a black plastic tower, the unit provides six AC outlets, a C14 coupler for mains connection, a sealed lead-acid (VRLA) battery, a USB 2.0 port for communications, and an LCD status display. Built-in Automatic Voltage Regulation (AVR) helps maintain safe voltage levels without switching to battery for minor fluctuations, while surge protection and RJ11/RJ45 line protection guard phone, fax and modem lines.

Advantages

The UPS combines a compact tower form factor with a multifunction LCD readout and USB connectivity for basic monitoring and controlled shutdown via PowerPanel® Personal Edition software. AVR reduces unnecessary battery use by stabilizing input voltage. Sealed lead‑acid battery technology provides established, low-maintenance backup power and the device includes six AC outlets to support multiple devices. Energy‑saving features on the Adaptive Sinewave™ Series are intended to reduce standby power consumption.

Suitable for

• Protecting a small home or office server or NAS during short power interruptions
• Providing backup and surge protection for desktop workstations and peripherals
• Powering network equipment such as routers, switches and VoIP devices
• Guarding phone, fax and modem lines with RJ11/RJ45 surge protection

When it may not be suitable

This standby UPS is intended for light to moderate loads and provides approximately one minute of backup at full rated load, so it is not suitable when extended runtime is required or for critical infrastructure that needs long-duration uninterrupted power. The unit uses VRLA batteries and a standby topology, which deliver basic battery backup and surge protection but do not provide the continuous online isolation or the pure sinewave output some sensitive equipment may require.

Key specifications

• Output power: 540 W
• Apparent power capacity: 0.9 kVA
• Topology: Standby (offline)
• Battery type: Sealed lead‑acid (VRLA)
• Typical runtime: ~1 minute at full load (actual runtime varies by load)
• AC outlets: 6
• Connectivity: USB 2.0 port
• Form factor and colour: Tower, black plastic housing
• Additional features: Automatic Voltage Regulation (AVR), RJ11/RJ45 line protection, multifunction LCD
• Weight: 6.6 kg

How to use

Place the UPS in a well-ventilated area on a stable surface and connect your equipment to the AC outlets. Plug the UPS mains input into a properly rated C14 inlet or compatible power cable to the building supply. Use the USB 2.0 port to connect to a management-capable computer and install PowerPanel® Personal Edition to enable monitoring, scheduled shutdown and self-diagnostics. The LCD provides immediate information about input/output voltages and battery status. Allow the battery to charge for several hours before relying on full backup capacity.

What to consider before purchase

• Required runtime at your expected load — the unit gives approximately one minute at full load
• Whether standby (offline) topology and simulated sinewave output meet the needs of your equipment
• Total power draw of devices to ensure combined load does not exceed 540 W
• Physical space and weight: tower footprint and 6.6 kg mass
• Need for management features via USB and PowerPanel® software

Usage recommendations

For best results, connect only essential devices to the UPS to extend runtime, schedule orderly shutdowns through PowerPanel® when possible, keep the unit in a cool, ventilated location, and replace VRLA batteries according to manufacturer recommendations or when self-test diagnostics indicate reduced capacity.