Choosing a power strip for a desk: why socket count is the wrong number

A six-way power strip does not reliably power six things. Anyone who has tried to fit three power bricks along one has discovered this the expensive way, usually after the strip is already screwed to the underside of a desk.

The problem is width, not count

Modern plugs are not uniform. A phone charger is slim. A laptop brick is a fist-sized block. A monitor or printer plug is often a moulded right-angle shape that juts sideways.

Put two of the fat ones next to each other on a strip with tight spacing and the second one physically cannot go in. You have bought six sockets and can use four.

So when comparing strips, look past the headline number at:

• The gap between sockets. More generous spacing is the single biggest practical difference between two strips with identical socket counts.
• The orientation. Sockets set at an angle, or alternating, give bulky plugs somewhere to sit without fouling their neighbours.
• The cable exit. A lead leaving the end is easy to route. One leaving the middle of the back edge fights whatever the strip is mounted to.

Count what you actually own

Before you buy anything, do a quick inventory of the desk. Not what you think you have — what is physically plugged in right now.

A fairly typical desk turns out to be: a monitor, a laptop charger, a desk lamp, a phone charger, a set of speakers or a dock, and something occasional like a printer or a fan. That is six, of which perhaps three are bulky.

Then add headroom. A strip running at exactly its socket count leaves you unplugging the lamp every time you want to charge something, which is how extension leads end up daisy-chained — the one thing you genuinely should not do.

Tower or flat?

Both shapes solve the same problem differently, and the right answer depends on the desk rather than on which is better.

A flat strip is the classic bar. It disappears against a skirting board or under a desk, and it suits a run of sockets along a wall. Its weakness is that bulky plugs compete for space in one line.

A tower strip stacks sockets vertically around a column, usually with several faces. It takes up a small footprint on the floor or the desk and gives every plug its own clear face, which is exactly the problem flat strips have. The trade-off is that it is visible — a tower is a thing on your desk, not a thing hidden behind it.

As a rough rule: a wall run with a few slim plugs suits a flat strip; a desk with several chunky power bricks suits a tower.

What the USB numbers mean

Built-in USB ports are the reason to buy a modern strip, because each one is a power brick you no longer need to find a socket for.

Two figures matter, and listings do not always separate them:

• Per-port output — what a single device can draw. This is what decides whether your phone fast-charges or trickles.
• Total shared output — the budget all the ports draw from together. Four ports on a modest total will each slow down when all four are in use.

A USB-C port supporting a higher output is worth more than several older USB-A ports, particularly if anything you own charges over USB-C. If you intend to charge a laptop from the strip, check its requirement specifically — laptops ask for considerably more than phones.

Cable length is a real decision

It is tempting to treat the lead as an afterthought. Do not: a strip that does not reach forces an extension, and an extension into a strip is precisely the arrangement to avoid.

Measure from the wall socket to where the strip will actually sit, follow the route it will take — around the desk leg, behind the unit — and add some slack. Then buy that length or the next one up. A 2m lead and a 3m lead are usually the same product with a different cord, and the wrong choice is annoying every day.

What not to do

• Do not daisy-chain. Plugging a strip into another strip stacks load onto one wall socket in a way nothing in the chain is designed for.
• Do not run high-heat appliances off a desk strip. Heaters, kettles and similar draw far more than the desk electronics a strip is sized for.
• Do not leave a strip coiled in its bag under load. Cable that cannot shed heat gets warm; cable in a tight coil gets warmer.
• Do not ignore a strip that feels hot. Warm is normal. Hot to the touch is the strip telling you something.

Where to look next

Our tower power strips and USB power strips cover both shapes, and every product page lists the socket layout, the USB output and the cable length — the three things this guide says to check. If you want a second opinion on a particular desk, send us a photo of it.