This collection helps network-attached storage (NAS) owners choose an uninterruptible power supply (UPS) for short outages and controlled shutdowns. We compared each maker’s watt capacity, Australian outlet arrangement and USB signalling, then considered how well each unit suits a NAS alone or a wider network stack. Always verify the exact UPS against your NAS maker’s compatibility list.
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A 950 VA APC model with four Australian outlets for a NAS and selected network equipment.
The four local outlets suit several essential devices. APC lists its maximum configurable power as 480 W, so size the connected load against that.
A 1000 VA, 550 W line interactive unit with three Australian outlets and HID compliant USB.
Its stated HID compliant USB port is useful for a NAS shutdown connection. Three battery and surge protected local outlets suit a focused setup.
A 900 VA, 480 W Eaton 5E Gen2 model with two Australian outlets.
A straightforward option for a compact NAS setup. Check Eaton’s page for its USB connection before relying on automatic shutdown.
A 700 VA, 390 W line interactive UPS with three Australian outlets and HID compliant USB.
It combines local outlets with explicit HID USB signalling. Its lower watt ceiling makes careful load addition particularly important.
A 1600 VA, 960 W line interactive model with four Australian outlets (three battery backed) and HID USB.
The higher watt limit provides more headroom for selected network equipment. CyberPower also specifies HID compliant USB for signalling.
A 1200 VA, 660 W line interactive UPS with three Australian outlets and HID compliant USB.
It offers a useful middle ground between outlet count and watt capacity. Eaton states that its USB connection is HID compliant.
A 750 VA, 410 W APC model with three Australian outlets.
Its local outlet format suits a small Australian setup. It is most appropriate when the measured load leaves sensible watt headroom.
A 1200 VA, 650 W APC model with four Australian outlets.
The four local outlets accommodate more essential devices than the smaller BX750MI-AZ. Add their rated watts before deciding.
Start with watts, not just volt amps, or VA. Add the rated watts of every device that will remain on battery, including the NAS, router, network switch and any external storage. Then leave headroom rather than choosing a UPS whose watt limit merely matches that total. The UPS Sizing Calculator helps organise this calculation. Once you have a shortlist, use the UPS Runtime Estimator to compare the effect of different loads without assuming that the VA figure alone determines useful battery time.
USB communication is the next filter. With a compatible USB UPS, the NAS can monitor power status and enter a safe state before the battery is exhausted. HID means Human Interface Device, a standard form of USB signalling that can simplify operating system integration. The CyberPower VP700ELCD, VP1000ELCD and VP1600ELCD, plus the Eaton 5E Gen2 5E1200UIAU, explicitly state HID compliant USB. That does not prove that every NAS recognises every model. Check the exact model number against the compatibility list for your Synology, QNAP or other NAS before ordering.
Outlet layout matters in Australia. An Australian outlet accepts the normal local plug fitted to many NAS power bricks, while an IEC outlet uses a computer style power connector and may require a suitable lead. Count only the battery backed outlets you can actually use. The CyberPower models discussed here and the Australian versions of the Eaton 5E models provide local outlets, but their counts differ. APC also identifies Australian outlets on the three BX models in this collection.
Think about what genuinely needs backup. Keeping the NAS and essential network equipment powered may allow alerts and orderly shutdown, while attaching monitors, printers or other nonessential loads consumes capacity. Read the broader UPS power protection guide if you need help deciding where to draw that boundary.
Choosing from VA alone and overlooking the UPS watt limit.
Assuming that a USB socket guarantees compatibility with the NAS. Confirm the exact UPS and NAS combination, then configure shutdown behaviour.
Counting outlets without checking their connector type or whether every attached device should remain on battery.
Keep the receipt and record the exact model and serial number, especially where similar product generations use nearly identical names. The ACCC explains how a maker’s warranty works in addition to your consumer guarantees on its warranties page.
List the equipment that must stay powered, copy each device’s rated watts from its label or power supply, and total the figures. Check that total against the UPS watt rating with headroom, confirm the plugs fit, and verify the exact model on your NAS maker’s compatibility list. After installation, enable UPS support in the NAS interface and run a controlled power failure simulation while you can observe the system. Synology notes that how its UPS power-off function behaves varies by UPS brand and model, so a controlled test is worth doing.
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