# Meross MSS425 Smart Extension Lead, 4 UK Sockets, 4 USB, Apple Home

Source: https://www.ranked10.co.uk/tech/best-smart-plug/meross-mss425-smart-plug
Ranked #9 in "Best Smart Plug 2026: 10 Ranked, and Why 13 Amps Means Three Different Wattages": https://www.ranked10.co.uk/tech/best-smart-plug

- Price: £34.99 (checked on Amazon UK on 2026-09-05)
- Amazon rating: 4.2 from 1,212 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B08JG232D8?tag=ranked10-21

The Meross MSS425 is the odd one out in our smart plug ranking: not a plug but a smart extension lead, with four individually switched UK sockets and four USB-A ports, and it takes ninth place. At GBP 34.99 it is priced as one unit rather than per socket. What it does that no plug here can is control a cluster of devices behind one piece of furniture, a TV stack or a desk, switching each socket on its own by app or voice, with the four USB ports sharing a 20 watt output and switching together as a group. It wall-mounts, and it works with Apple HomeKit as well as Alexa and Google Home.

It also carries the weakest ratings on the page, at 4.2 stars with a one-star share of ten per cent, the highest in the ranking, which is what happens when a device has more parts to go wrong than a single plug. The specification table adds its own confusion. It gives the plug type twice and differently: "Power Plug Type: Type G", the correct British three-pin, and two rows down "Plug Type: Type C", the European round two-pin that does not fit a UK socket. It records a unit count of 545 for something that ships one to a box, and it puts the configuration, "4 Gang 4 USB", in the colour field. The electrical figures, at least, are right: 230 volts and 13 amps, which is 2,990 watts, the true ceiling of any 13-amp lead.

## Specification

| Field | Value |
|---|---|
| Maximum current | 13 Amps |
| Voltage | 230 Volts |
| Power plug type | Type G |
| Plug type (as listed) | Type C |
| Number of outlets | 8 (4 AC + 4 USB) |
| Total USB ports | 4 |
| USB output | 20W shared across the four ports |
| AC sockets | 4, switched individually |
| Item dimensions (L x W) | 34 x 6.1 centimetres |
| Item weight | 630 g |
| Enclosure material | Plastic |
| Other features | Mountable |
| Compatible with | Apple HomeKit, Alexa, Google, SmartThings |
| Colour (as listed) | 4 Gang 4 USB |
| Unit count (as listed) | 545.0 count |
| Box contents | 1 x smart power strip |
| Brand | meross |
| Model number | MSS425F |
| Manufacturer part number | MSS425FHK-UK |
| Country of origin | China |
| ASIN | B08JG232D8 |

## Questions people ask

**How is the MSS425 different from the plugs in this ranking?**

It is an extension lead, not a single plug. You get four UK sockets that each switch on their own by app or voice, plus four USB-A ports, in one unit that wall-mounts. That suits a cluster of devices behind one piece of furniture better than four separate plugs would.

**Why is it rated lower than the plugs above it?**

At 4.2 stars it has the weakest average on the page, and its breakdown carries the highest one-star share in the ranking at ten per cent. A lead with four sockets, four USB ports and Wi-Fi has more parts to go wrong than a plain plug, and the reviews reflect that.

**Do the USB ports charge fast?**

Not especially. The four USB-A ports share a single 20 watt output between them and switch as a group, not individually, so they suit phones and tablets rather than a laptop. The listing points to other Meross models for USB-C or fast charging.

**How many watts can it handle?**

The table gives 13 amps at 230 volts, which is 2,990 watts, the ceiling of any 13-amp lead, set by the fuse in its plug. Spread across four sockets, a single high-draw appliance like a heater will use most of that on its own.

**Why does the table show two plug types?**

"Power Plug Type" reads Type G, the British three-pin, which is correct. "Plug Type" two rows down reads Type C, the European two-pin, which is a catalogue field filled in wrongly; nothing in the box has a Type C plug. The lead plugs into a normal UK socket.

**What does the 545 unit count mean?**

Nothing about what you receive. "Box Contents" reads "1 x smart power strip", so you get one lead. The 545 in the unit-count field is a stray catalogue value, the same kind of error as the configuration sitting in the colour field.