The best socket cubes, compared.
Top pick: Masterplug MSWRG3-MP – Highest score: about £8.25, 4.6 from 5,929 reviews, a switch on each of three sockets. The surge line has no joules, and reviews say the switches get hot. Best value: NAEEM SONS cube – About £4.30, the lowest price among rows scoring at least 70 with no severe-heat penalty. The title says 2-way and the outlet field says 3. Updated October 2026.
A socket cube plugs into one UK 13 A wall socket and gives you two, three or four Type G outlets, sometimes with USB on the spare faces. People buy one when a double socket has run out of holes and they do not want a trailing lead. Every face shares one 13 A path, about 3,000 W at 230 V, so a kettle and a toaster together are already too much. How you [stay under that shared 13 A limit](/hub/sockets-and-extension-leads/socket-cube/sub/socket-cube-how-to-use) comes before a switch or a USB port. Tell a sound cube from a poor one by a 13 A fuse, sleeved rectangular pins, shutters and faces your real plugs fit. The outlet count on the object has to match the title. A Type B line, or a cell that says no plug, beside a UK cube is a broken table. An unfused cube is the one to leave on the shelf. Cheap bodies refuse bulky plugs, and a larger body can cover the other half of a double socket.
A socket cube plugs into one UK 13 A wall socket and gives you two, three or four Type G outlets, sometimes with USB on the spare faces.
36 products checked · 64 hrs invested · +22,800 readers
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Personal buying guide
Question 1 of 2
Where does it need to sit?
The Masterplug MSWRG3-MP puts three switched sockets on one wall plug, listed at about £8.25 with 4.6 from 5,929 amazon.co.uk reviews. In the first 50 UK reviews, people use a switch on each socket and like the side faces sitting the right way up for a night-light style plug. The bullets claim a surge indicator and a thermal cut-out, with no joule figure, and they say not to use the adaptor if the indicator is not lit. Several of those reviews say the switches get hot, including with a phone charger, and one buyer says all three of their units get really hot whatever is plugged in. The switch LEDs are called very bright, including a green light that stays on and lights a dark room. On a twin socket the body covers the other outlet or one of its own faces. The table also prints Type B beside Type G, and two USB ports the bullets never describe, so those cells do not make this a USB cube or a settled pin type.
Pros
Cons
Best for: You want switched mains sockets on a single wall outlet and you can live with bright switch lights.
Less suitable: A double socket where you still need both halves, a dark bedroom, or a listing you opened because you wanted USB.
Specifications
Common questions
Does each socket have its own switch?
Yes. The title and the bullets say individual switches, and reviews talk about a light on each switch.
What surge figure is printed?
None. The bullets describe a thermal cut-out indicator and a connected-equipment limit of up to £1,000 for three years.
Will it block a double socket?
Reviews say that on a twin socket you lose either the spare wall socket or one face of the adaptor.
The NAEEM SONS cube is the cheapest single unit here at about £4.30, listed at 4.6 from 947 reviews, at 60 g, with Type G and 230 V AC printed. The title says a 2-way 13 A adaptor, one bullet says two devices, another bullet says a 3-way plug, and the outlet field says 3, so the page does not give you one outlet count. In the first 50 UK reviews, people use it for a small plug such as an electric toothbrush charger on a kitchen socket. Large moulded plugs would not go in, and one buyer still called the body a bit bulky. Pins on one of two units felt slightly wobbly and still worked that week. A bullet claims protection from surges and lightning, with no joule figure and no indicator. There is no fuse name, no colour, and no body size in the table. It is the best value in this set when your plugs are small and you count the faces on the object before you rely on the title.
Pros
Cons
Best for: You want one cheap extra hole for a small square plug, and you will count the faces on the object.
Less suitable: Bulky plugs, a computer you wanted surge-rated in joules, or a purchase that needs the listing to settle on two outlets or three.
Specifications
Common questions
Does this NAEEM cube have surge protection?
A bullet says it keeps devices safe from surges, spikes and lightning. The table gives no joule rating and no indicator.
How many sockets does the listing claim?
The title says a 2-way adaptor and one bullet says two devices. Another bullet says a 3-way plug, and the outlet field says 3.
Will large plugs fit?
UK reviews say it suits a small standard plug, such as a toothbrush charger, and that bulky plugs would not go in.
The FAMHOME listing is a white two-outlet block, 46 x 46 x 114 mm and 120 g, sold as a pack of two at about £6.99. The star line is 4.6 from 837 reviews. In the first 50 UK texts, buyers call it solid for the price and useful where a long lead is unnecessary, and they note that two units arrive. There is no fuse name and no amperage line. The table prints 240 V in and 250 V out. After a couple of months, plugs in the adaptor became hot for some reviewers. One pin became hot enough that the connection dropped in and out, and one buyer said a prong burnt a hand. The warranty line is six months. It is a compact two-way block whose review sample includes that severe heat, which is why the 4.6 does not read as a clean result.
Pros
Cons
Best for: You want a cheap pair of two-way blocks for light plugs, and you will unplug at the first sign of heat.
Less suitable: A kettle, a heater, or any load you would leave in a block that already has hot-pin reviews.
Specifications
Common questions
How many outlets, and what are the dimensions?
The table says 2 outlets, Type G, 46 x 46 x 114 mm, 120 g. The title says a pack of 2.
Does it claim surge protection?
The bullets do not claim surge protection. Heat at the pins is what the critical reviews describe.
Is a 13 A fuse named?
No. Input is printed as 240 V and output as 250 V, with no amperage line.
The LENCENT WW07-G3b-PD is a wall cube of 7.1 x 6.5 x 7.1 cm and 170 g, listed at about £14.99 with three AC outlets and two USB ports at 12 W (5 V / 2.4 A). Across the first 50 UK reviews of a 4.6 from 775 listing, people run three devices from one socket without a lead across the floor, including in a hotel room, and one review says a plastic-pin plug such as a Dyson charger goes in. Charging is called fine for phones in one of those reviews, which matches a 12 W figure rather than a laptop charger. The bullets claim child safety doors and a polycarbonate body rated to 750 °C, while the standards cell only says CE and UL, with no BS number. A bullet lists a bathroom among other rooms, and no IP rating is printed. Reviewers also call it larger than expected, awkward once it sits on an extension lead, and a bit plasticky. Those 50 reviews do not form a heat cluster. The saved reviews record one isolated heat word.
Pros
Cons
Best for: You want three mains faces and about 12 W of USB in a dry room, with shutters claimed on the listing.
Less suitable: A bathroom, a laptop that needs a higher USB wattage, or a cube you plan to stack on an extension lead.
Specifications
Common questions
How many sockets and what USB output?
Bullets say 3 AC outlets and 2 USB ports, USB maximum 12 W (5 V / 2.4 A). The connector field says USB 3.0.
Does it claim child shutters?
Yes. A bullet says a child safety door design.
Does the listing say bathroom?
A bullet lists bathroom among other rooms. No IP rating is printed.
The JSVER-OT4021 is a black four-face cube, 82 x 57 x 85 mm in the bullet and 170 g, listed at about £12.99 with two USB ports whose total is printed as 5 V / 2.4 A, 12 W, and a 13 A fuse named in the bullets. The listing line is 4.6 from 696 reviews. In the first 50 UK texts, people like four mains faces plus USB in a kitchen gap, the black finish against black appliance plugs, and a blue LED between the USB ports. A plug can cover those USB ports, and the same LED disappears once a cable crosses it. The severe notes are heat: one unit melted two fuses and smelt burnt within about three months with the USB unused, another became extremely hot and was thrown away, and another overheated until the fuse blew. A further review says a unit fell apart in under two years. One arrived with a loose top pin, and others describe the body moving up and down in the wall.
Pros
Cons
Best for: You are comparing a four-face black cube and you will unplug it if it smells of hot plastic.
Less suitable: Anyone who wants a cube without melt and blown-fuse reports in the sample, or who needs the USB ports clear of a large plug.
Specifications
Common questions
How many mains sockets and USB ports?
Bullets and the table say 4 AC outlets and 2 USB ports. USB total is printed as 5 V / 2.4 A, 12 W.
Is a fuse named?
Yes. A bullet says a 13 A fuse.
Do reviews mention heat?
Yes. More than one UK review describes melting, a burnt smell, a blown fuse, or the body getting extremely hot.
The Aodeng ZYC021 is a white three-way wall adaptor at about £17.99, the dearest row here, with four USB ports: three USB-A at 5 V / 2.4 A and one USB-C at 5 V / 3.0 A, and a combined line of 5 V / 3.4 A. The listing is 4.6 from 432 reviews. In the first 50 UK texts, people like three mains sockets plus USB-A and USB-C where a full extension lead will not fit, and one buyer says the narrow base cleared a switched socket plate. The same reviews say it sticks out more than 3 inches, about 4.5 inches with a plug in, and that one unit was front-heavy and leaned out until it lost contact. The outlet field prints 7, which adds the USB ports to the three mains faces. One plug field says Type G and another says No Plug, and the warranty cell says No. A bullet does claim one switch for both the AC sockets and the USB ports.
Pros
Cons
Best for: You want USB-A and USB-C on a three-way body, and the socket can hold a front-heavy adaptor.
Less suitable: A shallow gap behind a television, or a socket where a leaning adaptor has already lost contact.
Specifications
Common questions
How many USB ports, and at what output?
Bullets say 4 USB ports: 3 USB-A at 5 V / 2.4 A and 1 USB-C at 5 V / 3.0 A, with a combined line of 5 V / 3.4 A.
Does it hang off the wall?
Reviews say it protrudes over 3 inches and that one unit was front-heavy and leaned out until it lost contact.
What does the plug field say?
One field says Type G and another says No Plug. Warranty is printed as No.
This is the NAEEM SONS pack of two white wall cubes at about £5.49, with 120 g printed for the pair, and the same 2-way title and 3-outlet table as the single at about £4.30. The listing line is 4.5 from 55 reviews, and the file holds only seven UK texts, each a few lines of praise. Those seven say the cubes were still working after a couple of weeks, that they plug in and go, and that they add a couple of extra sockets. No defect is described in those seven reviews. The surge bullet is the same lightning sentence as the single pack, with no joules and no indicator, and no fuse is named. Colour is white on this listing, which the single pack leaves blank. Seven short notes against a count of 55 are a thin sample, so the pack is a spare pair of the same unsettled cube.
Pros
Cons
Best for: You want two cheap cubes and you accept that the readable reviews are seven short lines of praise.
Less suitable: A bulky plug, a device you wanted a joule rating for, or a decision that needs more than seven review texts.
Specifications
Common questions
Is this the same cube as the single pack?
The title, bullets, brand and 230 V Type G table match the single NAEEM listing. This ASIN is the pack of 2 at about £5.49, white, 120 g.
How many reviews are on the listing?
The listing line says 4.5 out of 5 from 55. The saved file contains 7 UK review texts.
The Status S3W1.4M3XUSB1PK6 is the only cube in this set on a lead: 1.4 m, 460 g, three mains sockets and three USB ports, listed at about £13.98. The star line is 4.4 from 791 reviews. In the first 50 UK texts, people want a short cube instead of a long bar for a bedside or desk, and one buyer says the lead reaches a short kettle flex. The bullets do not print USB volts or watts, and the plug field says Type B with no Type G line. Reviews describe a lit on/off switch that the bullets never name. One unit arrived with dead USB ports while the 13 A sockets still worked. Another review says the switch cuts only the mains sockets, the USB stays live, and the USB plugs get quite hot. A background hum and swirl marks on the casing also appear in that sample.
Pros
Cons
Best for: You need about 1.4 m of reach to a bedside or a desk, and you will check the plug pattern on the object.
Less suitable: Anyone who needs a stated USB wattage, a Type G line in the table, or USB that the switch actually cuts.
Specifications
Common questions
How long is the lead?
The title and the length field say 1.4 m. Weight is 460 g.
How many USB ports?
The title says 3 USB ports. It does not print volts or watts.
Does the switch turn the USB off?
A UK review says the switch only affects the 13 A sockets and that USB plugs get quite hot while the unit stays in the wall.
The Double Dragon cube is a white two-outlet wall splitter at about £4.93 and 60 g, with a listing line of 4.4 from 126 reviews. The bullets claim safety shutters on both sockets, a fire-retardant polypropylene body to 750 °C, and UKCA, CE, TUV and BS 1363, plus up to 3,120 W. They do not name a fuse. All 28 UK review texts in the file include one that says there is no fuse and no CE mark on the item, and that the surge claim is not credible at this size. Other texts say the terminals do not line up, so plugs are hard to insert, and that the body feels very light, cheap or 3D-printed, with no power isolation. Some buyers are still content with everyday plugs in a tight space. One review tells others to avoid it. Those 28 texts are a slice of the 126 on the listing line, so the stars cover a larger audience than the file lets you read.
Pros
Cons
Best for: You are comparing a cheap two-way cube and you will look for a fuse in the plug before you leave it in the wall.
Less suitable: Anyone who needs a fuse named in the listing, or who has already read the review that says to avoid this one.
Specifications
Common questions
Does the listing claim a fuse?
The bullets claim surge protection, shutters and BS 1363. They do not name a fuse. One UK review says there is no fuse and no CE mark on the item.
How many outlets?
Title and outlet field both say 2. The bullet says it converts one plug into two, up to 3,120 W.
Are shutters claimed?
Yes. The bullets say safety shutters on both sockets.
The Chemilen cube is a white three-way body at about £13.99 and 250 g, with two USB-A ports and two USB-C ports, a claimed 13 A fuse, child shutters, and one switch with an LED. The bullets say USB-C up to 15.5 W and USB-A up to 12 W, while a review says the four USB ports share about 3.1 A. The listing line is 4.1 from 20 reviews, the lowest stars in this set, and the file holds 16 UK texts. Those texts like three mains sockets plus USB for travel instead of several chargers, and one buyer says they checked the plug measurements and found it fused. The same sample says it sticks a long way out, is too deep for the gap behind a television, and that one buyer could not run an Alexa Dot from a mains face. One review calls the unit intermittent. The outlet field prints 7, which adds the three mains faces and the four USB ports. Twenty reviews is a small sample beside the Masterplug’s 5,929.
Pros
Cons
Best for: You want USB-C on a three-way cube whose bullets name a 13 A fuse, and you will treat 20 reviews as a short sample.
Less suitable: A tight gap behind a television, or a device that needs more than the shared USB current a reviewer described.
Specifications
Common questions
Why does the outlet field say 7?
The bullets say 3 mains sockets, 2 USB-A and 2 USB-C. The outlet field prints 7, which adds those together.
What USB power is printed?
Bullets say USB-C up to 15.5 W and USB-A up to 12 W. A review says the four USB ports share about 3.1 A.
Is there a fuse and a switch?
A bullet says a built-in 13 A fuse, child shutters, and a switch with an LED.
Ten amazon.co.uk listings were scored for this page. Each score starts at 70, then adds review evidence, a price band, and job points when the bullets name a switch, a 13 A fuse or shutters. The three weights below sum to 100 and follow those variable blocks. Stars, review counts and prices come from the stored listings. A joule line, a standards cell or a watt bullet is a claim on the page, not a measured load. There was no lab test. Severe heat reports, a review that says there is no fuse, a Type B or no-plug cell, an outlet conflict, an empty surge or bathroom claim, and bright switch LEDs sit outside the 100 as deductions.
Review evidence
43%round(4.2 times log10 of the review count), capped at 16, plus round((stars minus 4.4) times 10). A 4.6 from 5,929 reviews gains more than a 4.6 from 20 reviews. A 4.1 loses 3. This is the largest variable block after the shared start of 70.
Price band
22%GBP on the stored amazon.co.uk listing. 8 points at £7 or under, 5 from £7.01 to £12, 2 from £12.01 to £16, and 0 above £16.
Switch, fuse and shutters
35%Job points only when the bullets say so: 6 for a switch, 4 if a 13 A fuse is named, and 3 if shutters are named. A USB count the bullets never describe does not score.
The checks run in this order: the shared 13 A limit, a fuse and Type G pins, whether the plugs fit, then USB watts and heat claims. The table is the ten stored listings. Watt bullets and surge lines stay seller claims. None of these cubes was load-tested for this page.
A socket cube is a plug-in adaptor that uses one UK 13 A wall socket and puts two, three or four Type G outlets on the body. Some add a small 5 V supply on a spare face. People buy one when a double socket has run out of holes and a trailing lead is in the way. It does not add a circuit. None of the ten stored amazon.co.uk listings prints an IP rating, so a bathroom word on the page is not a bathroom fitting. The first check is the shared 13 A limit.
Every outlet shares one 13 A path. Electrical Safety First puts a kettle at up to 13 A and a four-slice toaster near 9 A. A list of compatible devices that names kettles and heaters does not change the sum.
A surge sentence with no joules and no indicator is not a surge rating. A bathroom bullet with no IP rating is not a bathroom product. None of these listings prints an IP rating.
Electrical Safety First says one device per socket and to stop if you smell hot plastic. JSVER reviews describe melting and blown fuses. FAMHOME reviews describe hot pins. Unplug, and do not daisy-chain.
A socket cube gives you more holes on one wall socket. It does not give you more amps. Read 13 A, or a 3,250 W bullet, as the limit for every face together. Then look for a BS 1362 fuse and sleeved Type G pins in the bullets. JSVER and Chemilen name a 13 A fuse. Masterplug prints 13 A in the current fields and does not name a fuse. FAMHOME prints voltage and no amperage line. Double Dragon claims BS 1363 and shutters, and a UK review says there is no fuse on the item.
Cheap cubes refuse bulky plugs. NAEEM reviews describe a small plug such as a toothbrush charger, and large moulded plugs that would not go in. A larger body can cover the other half of a double socket. Masterplug reviews say that on a twin socket you lose the spare wall socket or one face of the adaptor. Count the faces. NAEEM’s title and outlet field disagree. Aodeng and Chemilen print 7 because the field adds USB.
Three typical situations, each with a recommendation from this comparison.
You want a switch on each mains face and you can live with bright LEDs. The Masterplug MSWRG3-MP is the top pick at about £8.25, with 4.6 from 5,929 reviews. The surge line has an indicator and no joule figure. Reviews say the switches get hot.
You need a low-power plug, such as a toothbrush charger, and you will count the faces on the object. The NAEEM SONS cube is the best value at about £4.30, with 4.6 from 947 reviews. The title says 2-way and the outlet field says 3. Large moulded plugs do not fit.
The flex is slightly short and a wall cube will not reach. The Status cube is the only row on a lead, 1.4 m at about £13.98, with 4.4 from 791 reviews, three mains sockets and three USB ports. USB watts are not printed, and the plug field says Type B.
The top pick is the Masterplug MSWRG3-MP at about £8.25, with 4.6 from 5,929 reviews, the highest score in this set. It puts a switch on each of three sockets and claims a surge indicator with no joule figure. Reviews say the switches get hot and the LEDs are very bright, and the table prints Type B beside Type G. The best value is the NAEEM SONS cube at about £4.30, with 4.6 from 947 reviews. It is the lowest price among rows that score at least 70, are not the top pick, and have no severe-heat penalty. The title says 2-way and the outlet field says 3, and large plugs do not fit. FAMHOME at about £6.99 and JSVER at about £12.99 are not the value pick after melt, burnt-smell and hot-pin reports.
Masterplug MSWRG3-MP
Highest score: about £8.25, 4.6 from 5,929 reviews, a switch on each of three sockets. The surge line has no joules, and reviews say the switches get hot.
NAEEM SONS cube
About £4.30, the lowest price among rows scoring at least 70 with no severe-heat penalty. The title says 2-way and the outlet field says 3.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Sources taken from the research digest. Listings were scored from stored amazon.co.uk rows. This page did not run a lab test.
This article contains affiliate links. If you buy through these links we may earn a small commission, at no extra cost to you. Prices, stars and review counts come from stored amazon.co.uk listings. We did not run a lab test.
