A surge protector earns its place with a real Joule rating, not just extra sockets. Our best overall pick is the CyberPower 8 Outlet Power Board: the listing gives it eight protected outlets, two USB-A charging ports and a master switch that cuts standby power to everything at once. If you want a published protection figure, the Addtam 900J Surge Protector Power Board states its 900 joules and adds four USB ports including two USB-C. For a single television or modem, the HPM Adaptor Surge Protector is the lowest priced option here, a single outlet adaptor rather than a full board.
Surge protectors and power boards compared
| Power board | Outlets | Joule rating | USB | Switching | Warranty |
|---|
| HPM Adaptor Surge Protector | 2, a single outlet adaptor | Not published | None | None | Not stated |
| CyberPower 8 Outlet Power Board | 8 | 2,750 J, per the maker section of the listing | 2 USB-A | Master switch | Limited lifetime on the unit |
| TESSAN USB-C Tower Power Board | 8 in a vertical tower | Not published | 3 USB including a 20W USB-C | 10A overload switch | Not stated |
| Addtam 900J Surge Protector Power Board | 8, widely spaced | 900J, published | 4 USB, two of them USB-C | Double switch, one per side | Not stated |
| Belkin 6 Way Outlet Surge Protector | 6 | 650 J, per the listing | 2 USB-A at 2.4A | Not stated | Connected equipment warranty, check the current terms |
| Belkin 8-Outlet Surge Protection Strip | 8 | Not published | USB charging | Not stated | Connected equipment warranty, check the current terms |
The short joule ladder, because the number is what separates a surge protector from an extension lead: under 500 joules is only worth having behind cheap, replaceable things, 500 to 900 joules is real but modest protection, and 1,000 joules or more is the floor for a television, a desktop computer or a home theatre stack. Where a listing states no figure at all, assume the protection is modest. Prices update against the live Amazon AU listing.
The one thing most people get wrong about surge protection
Here is the honesty point that this whole guide turns on: a plain cheap power board does not protect against surges. It splits one socket into several, and that is all. The moment a real surge arrives (a lightning strike up the street, the grid switching back after an outage, a big motor like an air-conditioner kicking off), that cheap board passes the spike straight through to whatever is plugged in.
To actually absorb surge energy you need a board with a real Joule rating. The Joule figure tells you how much surge energy the protector can soak up before it wears out, and the higher the Joules, the more it absorbs. For everyday phone chargers and lamps you can get away with less, but for valuable gear (a TV, a computer, a games console, networking equipment), look for 1000J or higher where you can. In this round-up the Addtam 900J Surge Protector Power Board states its number, 900 J, which is exactly the kind of transparency you want.
We compared options on Amazon AU, from a single outlet adaptor up to an eight way Belkin strip, and judged them on stated protection, outlet spacing, USB charging, warranty and switching.
How we evaluated these surge protectors
We do not run surges through power boards. We compared the cards here on the figures that decide the buy: the Joule rating on the compliance plate where the maker publishes one, outlet count and spacing, USB output, RCM marking stated on listings, the warranty terms and the current Australian price, and we say plainly where a listing publishes no Joule figure at all. We read each Amazon AU listing, including the maker section some listings carry, and checked stock, seller and price on 7 October 2026. The cheapest is the HPM Adaptor Surge Protector.
Best overall: CyberPower 8 Outlet Power Board
The listing gives the CyberPower eight protected outlets, two USB-A charging ports, a 2 metre cable and a master switch that cuts standby power to everything at once. The listing states a limited lifetime guarantee on the unit, though its warranty field says one year, so check the current terms. The maker's section on the listing states 2,750 joules of surge suppression, above the Addtam's 900 J. Australian compatibility or compliance could not be verified for this listing.
Look for a real Joule rating, and know what the number means
If you remember one spec from this guide, make it the Joule rating. It is the single number that separates a real surge protector from a glorified extension lead. A board rated at 900J or 1000J can absorb that much surge energy before its protection starts to degrade; a board with no rating at all may be doing very little.
As a rough guide: under about 500J is fine only for cheap, replaceable items; 1000J or higher is what we would want behind a TV, a desktop PC or a home-theatre stack. The Addtam 900J Surge Protector Power Board sits just under that mark but at least tells you the figure, which is more than most boards here do. Where a listing stays silent on Joules, assume the protection is modest and plan accordingly.
The Addtam pairs its stated 900J rating with eight widely spaced outlets, four USB ports (two of them USB-C) and a double switch so each side can be cut independently. Its listing states its protection figure outright, at a mid range price for this set.
Wide outlet spacing so big plugpacks do not block neighbours
A frustration with cheap boards is that one chunky plugpack, such as a laptop charger or a smart-home hub, covers the socket next to it, so an eight-outlet board really only fits five things. Australian plugs are bulky, so spacing matters. Look for boards that advertise wide spacing or a tower layout where outlets stack upward instead of sitting shoulder to shoulder.
The TESSAN USB-C Tower Power Board solves this with a vertical design: eight AC outlets and three USB ports rise up the tower so plugpacks cannot crowd each other. It adds a 20W USB-C port and a 10A overload switch, and a slim right angle wall plug. It is a tidy desk solution, just note it is a newer listing with a small review base. Australian compatibility or compliance could not be verified for this listing.
Built-in USB-A and USB-C ports save a wall plug
Almost every board here now includes USB charging, and it is genuinely useful: a couple of USB-A or USB-C ports on the board itself means your phone and tablet charge without sacrificing a precious AC outlet to a wall brick. Watch the wattage, though. A basic 2.4A USB-A port tops up a phone fine; a 20W USB-C port (like the TESSAN's) charges a modern phone at speed; and the Addtam 900J Surge Protector Power Board goes furthest with four ports including two USB-C.
If you mostly just want fast phone charging at the desk, the USB-C ports on the TESSAN and Addtam are the standouts. If you only need to keep a phone topped up overnight, the 2.4A USB-A ports on the CyberPower 8 Outlet Power Board, the Belkin 6 Way or the Belkin 8-Outlet are plenty. Away from the desk, a power bank is the other half of the same kit.
A connected-equipment warranty is a real differentiator
Here is a feature worth paying for: some brands, Belkin chief among them, have historically offered a connected-equipment warranty, a promise to back the value of your gear if a surge gets through the protector and damages it. That is a meaningfully different proposition from a cheap board with no name behind it, because it shifts some of the risk off you. Always check the current warranty terms on the listing before you rely on it, as cover and conditions change.
The Belkin 8-Outlet Surge Protection Strip is the larger Belkin: eight outlets sized for a TV, soundbar, console and cable box on one board.
A master switch or switched outlets cut standby power and your bill
Standby power, the trickle a TV, console or charger draws while "off", quietly adds to your electricity bill. A board with a master on/off switch lets you cut all of that with one flick when you leave the room or head to bed. Even better are boards with individually switched outlets, so you can leave the modem on while killing power to everything else. A smart plug does the same job for one appliance and can schedule it, which is the better answer for something like an air purifier that hangs after a Wi-Fi outage and needs power-cycling.
The CyberPower 8 Outlet Power Board has a single master switch, and the Addtam 900J Surge Protector Power Board goes a step further with a double switch that controls each side of the board separately. Neither feature costs much, and over a year of switching off idle gear it pays for itself.
Surge protectors wear out, so replace old ones
This is the part that gets forgotten. Surge protection is not permanent. The components inside (metal-oxide varistors) sacrifice themselves to absorb energy, so every big surge chips away at the protection, and it also degrades slowly over years of small spikes. An old board may still pass power perfectly while offering little or no surge protection at all.
So: replace a surge protector after any serious surge or nearby lightning strike, and budget to replace ageing boards every few years even if they look fine. Many boards include a "protected" indicator light (the CyberPower 8 Outlet Power Board and Addtam 900J Surge Protector Power Board both do), and if that light is off, the protection is gone even though power still flows. Treat a dark indicator as a prompt to replace, not ignore.
When a single-outlet adaptor is all you need
You do not always need a full board. If you are protecting one valuable device, such as a single TV, a modem or a console in a spot with nothing else nearby, a plug-in single-outlet adaptor does the job and keeps the floor clear of cables.
The HPM Adaptor Surge Protector is exactly that: an adaptor from an Australian brand that turns one powerpoint into two protected sockets, with a body that sits flat against the wall. It carries no published Joule rating and no USB ports, so treat it as simple spike protection for one spot rather than a board for your whole setup. It is the lowest priced option here.
How to choose the right one for you
Start with what you are protecting. The HPM Adaptor Surge Protector is a single outlet adaptor suited to one valuable device. The CyberPower 8 Outlet Power Board is suited to a typical desk or media unit. The Addtam 900J Surge Protector Power Board states its protection figure and carries the most USB ports here, while the TESSAN USB-C Tower Power Board is suited to a crowded desk. Belkin states a connected equipment warranty on some boards; check the current terms on the listing.
If the board is protecting a television, our TV buying guide compares sizes, panel types and smart features.
Frequently asked questions
Does a normal power board protect against surges?
No. A plain power board just splits one socket into several and passes spikes straight through. For real protection you need a board described as surge protected with a Joule rating, ideally 1000J or higher for valuable gear. The Addtam states its 900 J figure on the listing, and CyberPower states 2,750 J in the maker section of its listing.
What Joule rating do I need?
The Joule rating is how much surge energy the protector can absorb before it wears out, and higher is better. Under about 500J suits cheap, replaceable items; we would want 1000J or higher behind a TV, computer or home-theatre stack. Where a listing does not state a Joule figure, assume the protection is modest.
Do surge protectors wear out?
Yes. The components that absorb surges sacrifice themselves over time, so protection degrades after big surges and across years of small spikes. Replace a board after any serious surge or nearby lightning strike, and replace ageing boards every few years. If the protected indicator light is off, the protection is gone even though power still flows.
Are the USB ports on these boards worth it?
Yes, for most people. Built-in USB-A and USB-C ports charge phones and tablets without using up an AC outlet on a wall brick. A 2.4A USB-A port tops up a phone fine; the 20W USB-C on the TESSAN USB-C Tower Power Board or the four ports on the Addtam 900J charge modern devices faster.
What is a connected-equipment warranty?
It is a promise from some brands, Belkin in particular, to back the value of your gear if a surge gets through the protector and damages it. It shifts some risk off you. Always check the current warranty terms on the listing, as cover and conditions change.
Can I save power with one of these?
Yes. A board with a master switch lets you cut standby power to everything at once, and individually switched outlets let you kill some devices while leaving others on. The CyberPower 8 Outlet Power Board has a master switch and the Addtam 900J Surge Protector Power Board has a double switch for each side.
Do I need a full board to protect just one device?
No. For a single valuable device a plug in adaptor with a single outlet is enough and keeps the floor free of cables. The HPM Adaptor Surge Protector turns one powerpoint into two protected sockets, though it has no published Joule rating or USB ports.
What is a surge protector?
A surge protector is a power board or adaptor with components inside, usually metal oxide varistors, that divert a sudden voltage spike away from whatever is plugged in. A normal power board has none of that: it splits one socket into several and passes the spike straight through. The number that tells you a board really has protection is the Joule rating, which is how much surge energy it can absorb before the protection wears out. Of the boards here, the Addtam states 900 J on its listing and CyberPower states 2,750 J in the maker section of its listing.
What is the difference between a surge protector and a power board?
Australians use the two words interchangeably and the shops do not help, but they are not the same thing. Every surge protector is a power board. Most power boards are not surge protectors. If the packaging or the listing does not say surge protected, and better still give a Joule figure, assume it is a plain splitter that will pass a spike to your television. The other tell is the indicator light: a real protector usually has a protected light that goes out when the protection inside has been used up.
Does a surge protector stop lightning damage?
Not a direct strike. A lightning bolt that hits your house or your line carries far more energy than any plug-in board can absorb, and nothing at this price will save the gear on the end of it. What these boards are actually for is the far more common event: the induced spike from a strike further up the street, the grid switching back after an outage, and a big motor such as an air conditioner cutting in. Unplug valuable gear during a serious storm, and replace any board that has taken a hit.
What should never be plugged into a surge protector?
Anything with a heating element or a compressor. Heaters, hair dryers, kettles, toasters, fridges, freezers, washing machines, dryers and air conditioners all pull a heavy sustained current, and a power board is not built for it: the board overheats, the surge components are no help, and it becomes a fire risk. Those appliances go straight into a wall socket. Do not daisy chain one board into another either, which doubles the load on a single outlet and voids most warranties.
Always follow the manufacturer's manual and the requirements of your state or territory regulator.
What brand makes the best surge protectors in Australia?
No single brand wins outright here. The CyberPower 8 Outlet Power Board's listing states a master switch and a limited lifetime guarantee. Australian compatibility or compliance could not be verified for this listing. Belkin states a connected equipment warranty on some boards; check the current terms on the listing. HPM is the Australian name at the single outlet end. Both the Addtam and CyberPower state a Joule rating, the Addtam at 900 J and CyberPower at 2,750 J in the maker section of its listing, which is worth more than most brand names in this category.
Is a surge protector necessary?
For a television, a desktop computer, a games console, a modem or a home theatre stack, yes, and a board is a small spend against what it protects. For a lamp and a phone charger, no, a plain board is fine. There are two situations where a plug in board is not enough: if you are on the end of a long rural line, or if you have solar and battery gear, a whole house surge device mounted at the switchboard by an electrician is the better spend, with plug in boards as the second layer behind it.
Does a surge protector power board have downsides?
A few, and all of them are covered above. The protection wears out silently: the parts inside sacrifice themselves to each surge, so an old board can still pass power with little protection left, which is why the protected indicator light matters. A board does nothing against a direct lightning strike. It is the wrong place for heaters, kettles, fridges and air conditioners, which draw a heavy sustained current. And a board with no stated Joule rating may be doing very little at all.
What is better than a plug in surge protector?
For a home on the end of a long rural line, or one with solar and battery gear, a whole house surge protection device mounted at the switchboard by a licensed electrician is the better first layer, with plug in boards behind it for the valuable gear. For a single device such as a modem, a smart plug or a single outlet adaptor is the simpler option, and a plug in board does not replace unplugging valuable gear during a serious storm.
How strong of a surge protector do I need for a PC?
For a desktop PC, look for a stated rating of 1,000 joules or more. Of the boards here, only CyberPower clears that, stating 2,750 joules in the maker section of its listing; the Addtam states 900 J and the Belkin 6 Way 650 J. Australian compatibility or compliance could not be verified for these listings, so check the RCM marking.
Where is the best place to buy a surge protected power board in Australia?
This guide compares boards listed on Amazon Australia, and JB Hi-Fi, Mwave and Jaycar also carry power board and surge protection ranges. Wherever you buy, check the listing says surge protected and gives a Joule figure, look for RCM marking, and read the current warranty terms before you order.
