Anker Prime 240W 4-Port GaN Charger (A2342): features, specs and who it suits

The Anker Prime 240W charger (model A2342) is a desktop USB-C charging station with four ports. It can run a laptop, a tablet and phones from one outlet, and it is powerful enough for two laptops at the same time. It is aimed at desks where several devices compete for sockets.

How the 240W is divided

The headline figure is a total, not what each port gives. Anker says one USB-C port supplies up to 140W, and the other three share 100W, for a maximum of 240W across four devices. In practice, the more devices you plug in, the more the power is split. The 140W port suits a large laptop, since USB-C Power Delivery 3.1 reaches that level, while the 100W side is enough for another laptop, a tablet or phones.

Charging two laptops

Anker states that USB-C 1 delivers 140W and USB-C 2 delivers 100W, so two laptops can charge at full speed together. A laptop's real draw depends on the model and what it is doing, and some need more or less than these figures, so check the wattage printed on the charger that came with yours.

What GaN means

GaN stands for gallium nitride, a semiconductor that handles power more efficiently than traditional silicon. In general, this lets a charger be smaller and run cooler at a given wattage. Anker describes the Prime as compact for its output, with a detachable base that helps keep a desk tidy.

ActiveShield 2.0

Anker says ActiveShield 2.0 monitors temperature around the clock and performs 3 million checks a day, with the aim of keeping charging within safe limits. Such systems typically adjust power if a part gets too warm. For electrical equipment, use the charger as the manual describes, on a stable surface with ventilation, and use cables rated for the power.

Cables matter

Fast charging at 100W and above needs a USB-C cable rated for it, typically marked 100W or 240W. A basic phone cable may limit the speed. The listing doesn't mention cables in the box, so check what you already have.

What's in the box

The listing says you get the Anker Prime 240W GaN Charger (4 ports), a detachable base, a welcome guide and a 24-month warranty with customer service.

Size

The listing gives a weight of 1.5 lb (about 0.7 kg) and does not list dimensions. Check Anker's specification for the footprint if your desk space is tight.

Compatibility

Anker names MacBook Pro and Air, iPhone 16 and 15 families, iPad Pro and Galaxy S23 and S22 devices. USB-C Power Delivery is a common standard, so many other USB-C devices should also work, though each device sets its own limits.

Who it suits

It suits people with a laptop, a tablet and a phone on one desk, small studios and travellers who want one central charger rather than several bricks. If you only charge a phone, it offers far more power than you need.

What to check before you buy

• Your laptop's wattage: compare it with the 140W and 100W ports.
• Cables: use cables rated for the wattage you need.
• Port sharing: remember the three ports share 100W.
• Outlet and space: it needs a wall socket and room on the desk.
• Warmth: leave space around it for airflow.

The short version

• Four-port USB-C GaN desktop charger with a 240W maximum.
• One port up to 140W; the other three share 100W.
• Can charge two laptops at once (140W and 100W).
• ActiveShield 2.0 temperature monitoring.
• Detachable base; 24-month warranty.

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