TESSAN 9-in-1 100W Charging Station — GaN Charging Station with 3 AC Outlets and 6 USB Ports

TESSAN 9-in-1 Review (2026) — Is a $38.99 GaN Charging Station Enough?

The cheapest way to add charging to a desk is to stop adding cables and start adding sockets to the socket you already have. That is what a vertical block does: one plug in the wall, nine outlets out the front, nothing on the floor.

TESSAN’s 9-in-1 is the value pick of this comparison at $38.99. It turns a single receptacle into three AC outlets and six USB ports, delivers up to 100 W over USB-C, and does it with a GaN charging station design compact enough to sit behind a monitor stand rather than beside it.

It is also the product in this group whose listing needs reading most carefully, because the marketing copy makes a comparative speed claim that is not a specification, and the 100 W figure behaves the same way it does on every multi-port charger.

In short: the gan charging station earns 8.4/10 from the Blue Rays Technologies team. The rest of this gan charging station review sets out exactly how that score was reached, and it is drawn from the published listing rather than from a bench. This review is research-based. We did not physically test this product; specifications, ratings and prices are taken from the live listing on the date shown. The full five-way comparison is in our best desk charging station guide.

Key Specifications

Published specifications for the gan charging station, taken from the manufacturer listing.

What GaN Buys You in a Charging Station

Gallium nitride is the whole reason a GaN charging station can hold 100 W of supply in something the size of a paperback. GaN transistors switch faster than silicon ones, which lets the internal transformer shrink and the waste heat drop for the same output. Every compact high-wattage charger sold in the last five years relies on it.

TESSAN’s listing describes a “built-in GaN chip, charging 5 times faster than ordinary plug, featuring dynamic temperature sensors”. The temperature sensing is a real and useful feature; the five-times claim is a comparison with an unnamed baseline and should be read as marketing rather than as a measured figure. What is verifiable is the port set and the 100 W PD rating.

The practical payoff of a GaN charging station at this price is thermal rather than electrical. Cheap non-GaN multi-port blocks get uncomfortably warm when three devices draw at once, and heat is what kills chargers. A cooler block with sensors that throttle is likely to outlive the phone it is charging.

Nine Ports, One Socket, 100 Shared Watts

The port count is the headline: three AC outlets, three USB-C and three USB-A, nine devices at once from a single receptacle. On a desk with one socket behind it, that is a transformation.

The 100 W is a budget, not a per-port figure. The listing rates the whole unit at 1,250 W on the AC side and 100 W PD on the USB side; plug in a laptop, a tablet and a phone and the laptop’s share falls. This is standard behaviour and the USB Implementers Forum’s own Power Delivery design allows for it, with “an adjustable voltage supply mode” letting a device “request intermediate voltages between 15V and up to the maximum available fixed voltage”.

The vertical format is the other thing being bought here. Because the block plugs straight into the wall it adds no floor cable at all, which also means it has to live wherever the socket is. If the socket is behind a desk against a wall, reaching the ports means reaching behind the desk — the exact problem the clamp and retractable models solve.

Load, Heat and the 1,250-Watt Line

Three AC outlets at a combined 1,250 W is the number that decides what this can and cannot run. A monitor, a laptop brick and a desk lamp together are a few hundred watts. A space heater on its own is 1,500 W, which is over the rating before anything else is plugged in.

That is not a hypothetical. OSHA’s interpretation on relocatable power taps states that “Power strips are not designed for high power loads such as space heaters, refrigerators and microwave ovens, which can easily exceed the recommended ampere ratings”, and the U.S. Fire Administration’s domestic guidance is the same instruction in plainer words: “Do not overload power strips” and “Do not overload outlets”.

For scale, the U.S. Fire Administration reports that “In 2021, an estimated 24,200 residential building electrical fires were reported to United States fire departments”, causing “an estimated 295 deaths, 900 injuries and over $1.2 billion in property loss”. Desk electronics are not what drives that number — overloaded circuits and major appliances are — which is precisely why the rule is worth keeping.

Limitations and Compromises

The first limitation of this GaN charging station is placement. A block that plugs into the wall is wherever the wall is. There is no cord, which is tidy, and no reach, which is the trade.

The second is weight on the socket. At 0.43 kg hanging off a receptacle, a worn or loose wall socket will sag. Check that yours grips before loading it with three plugs.

The third is the marketing copy. “5 times faster than ordinary plug” has no stated baseline, and the listing’s port descriptions in places read as machine-translated. Neither affects the hardware, but it means the specification table is the only part worth trusting.

Fourth, there is no surge rating anywhere in the listing. The named protections are over-current, over-voltage, short-circuit and grounded protection — useful, but not the same thing as a joule-rated surge suppressor. If surge protection matters, this is not the model in this comparison that provides it.

Setup and Everyday Use

Installing the GaN charging station is plugging it in, so choose the socket carefully — ideally the upper receptacle of a duplex outlet, so the weight is not pulling against gravity and the lower socket stays usable.

In use, keep the high-draw things on the AC side and everything small on USB, and do not chain it into an extension lead; per the OSHA interpretation these belong “directly connected to a permanently installed branch circuit receptacle”.

There is nothing to maintain beyond keeping the vents clear. If the body ever becomes hot rather than warm with three devices attached, unplug it and reduce the load.

Who Should Buy This GaN Charging Station?

Buy this GaN charging station if the socket you want to use is accessible — beside a desk, above a worktop, on a nightstand — and what you need is quantity at the lowest sensible price. Nine ports for $38.99 is the best ports-per-dollar figure in this comparison that still comes with a brand and a real rating count.

Skip it if your only socket is behind furniture, if you need a joule-rated surge suppressor, or if you want the ports to arrive at desk height. Those are the clamp and retractable models’ jobs.

The Verdict

The gan charging station scores 8.4/10. It does the most straightforward thing in this group — turn one socket into nine — and does it with GaN internals, temperature sensing and a 100 W PD rating for under forty dollars. As pure capability per dollar nothing else here is close.

It is held back by placement, by the absence of any surge rating, and by listing copy that over-claims. Judged on what the specification table actually says, 8.4/10 and the best value desk charging station of the five.

Blue Rays Technologies earns a commission from qualifying purchases made through the links on this page, at no cost to you, and that commission never affects a score. For the current price and the latest buyer feedback it is listed as the TESSAN 9-in-1 100W charging station on Amazon. The load limits are from OSHA’s interpretation on relocatable power taps and the fire statistics from the U.S. Fire Administration.

Frequently Asked Questions

The questions buyers ask most often about the gan charging station, answered plainly.

What does GaN mean on a charging station?
Gallium nitride, the semiconductor used in the power stage. It switches faster than silicon, so the charger can be smaller and run cooler at the same wattage. That is the entire benefit.

Do all nine ports work at the same time?
Yes, but they share. The AC side is rated 1,250 W in total and the USB side delivers up to 100 W in total, so a laptop charges more slowly when a tablet and a phone are also drawing.

Does it have surge protection?
Not a joule-rated one. The listing names over-current, over-voltage, short-circuit and grounded protection. For a rated surge suppressor, look at the 1,500 J clamp model instead.

Can I plug a space heater into it?
No. A typical space heater draws 1,500 W, above this unit’s 1,250 W rating, and OSHA’s guidance specifically names space heaters as loads power strips are not designed for.

Related Reviews

If the gan charging station is not quite the right fit, these Blue Rays Technologies reviews cover the nearest alternatives.

• Anker Nano 7-in-1 retractable charging station review — the tidy option
• Anker Nano 10-in-1 desk clamp power strip review — the one with a 1,500J surge rating
• BONAI 16-bay battery charger review — for the things that still take AA cells

Last updated: 27 September 2026. Pricing and availability for the gan charging station change frequently; check the retailer listing for the current figure.