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Compact black rectangular laptop power adapter with detachable cable and multiple connector tips

Cooler Master

Cooler Master MasterWatt 65W Universal AC Adapter accessory

SKU CH-3M90-KPENX

Universal 65 W laptop adapter with nine interchangeable tips, up to 90 % efficiency and 100 000-hour rated life

  • Universal charging with nine interchangeable tips including square Lenovo connector
  • Up to 90% efficiency meets US Level VI energy standards for cooler operation
  • 100 000 hours life expectancy ensures long-term reliability
  • 65 W output powers a wide range of laptops from a single adapter
  • Compact design replaces multiple proprietary chargers for travel convenience

Universal laptop charging

The MasterWatt 65W adapter supplies up to 65 watts of power for laptops from multiple brands. Nine interchangeable tips cover a wide range of barrel connectors, including a square tip for Lenovo models. It replaces the need to carry several proprietary chargers when travelling or working between locations.

Efficiency and thermals

The unit meets the latest US Level VI energy standards and delivers up to 90 percent efficiency during operation. High efficiency reduces waste heat, so the adapter runs cooler and draws less power from the wall socket. A rated life expectancy of 100,000 hours reflects the component quality used in Cooler Master power supply designs.

Build and daily use

The compact brick and detachable tip system keep cable bulk low in a bag or on a desk. Swapping tips is tool-free, letting you move between different laptops in seconds. The design omits a fixed cable, so a damaged lead does not require replacing the whole unit. Buyers who need more than 65 watts for larger workstations or gaming laptops should look at higher-output models.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 67% of the 8,241 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the Cooler Master MasterWatt 65W adapter and select the correct tip for my laptop?

Match one of the nine included tips, including the square Lenovo solution, to your laptop's charging port and connect the adapter to a wall outlet.

What maintenance or replacement will the Cooler Master MasterWatt 65W adapter need over time?

The adapter is rated for 100,000 hours life expectancy; no user-serviceable parts are inside, so replacement is only needed if the unit fails.

What limit appears first when the Cooler Master MasterWatt 65W adapter runs under sustained load?

The unit delivers up to 65W continuous output; sustained demand above that level will trigger its protection circuitry.

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