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Rectangular black power brick with magnetic tip, USB-A port and 6.2-foot cord

DELL 65W AC Adapter 20V 11.8A USB-A Magnetic 8541534689

SKU CH-Z5R4-7D0A6

65 W magnetic charger with USB-A port powers compatible Surface Pro, Laptop, Book and Go models at 20 V 11.8 A

  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Power adapter current11.8A
  • Power adapter wattage85 W
  • Measurements14.33 in W × 12.83 in H × 9.06 in D
  • Compatible withLaptops
  • Charges Surface devices up to 65W
  • Powers two devices via USB-A port
  • Magnetic connector ensures secure attachment
  • Built-in safety protections guard against faults
  • 2-foot cord gives flexible placement

Dell 65W Surface Charger with USB-A

This 65-watt AC adapter delivers 20 volts at 11.8 amps for Microsoft Surface Pro, Laptop, Book and Go models. The magnetic connector ensures a secure, plug-and-play connection that protects the charging port from wear. It is intended for owners who need a replacement or spare power supply for compatible Surface devices.

Magnetic connector and USB-A port expand utility

The magnetic tip snaps into place without force, reducing strain on the device socket. A built-in USB Type-A port supplies 5 volts at 1 amp so a phone or accessory can charge simultaneously. The package includes a 6.2-foot power cord and the adapter itself, with no additional software or cables required.

Limited to Surface magnetic charging interface

The proprietary magnetic interface only works with listed Surface models and cannot charge laptops that use USB-C Power Delivery or barrel connectors. Maximum output is 65 watts, with 44-watt and 36-watt fallback modes, so devices needing higher power will not charge at full speed. The adapter operates on corded electric input and is not a portable power bank.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 76% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model name65 W
Part number8541534689
Power
Battery voltage rating20 V
Power adapter voltage20 V
Power adapter current11.8A
Power adapter wattage85 W
Size & build
Measurements14.33 in W × 12.83 in H × 9.06 in D
Compatibility
Compatible withLaptops

Questions about this item

Will the magnetic connector or 6.2-foot cord need replacing after heavy daily use?

The magnetic tip and cord are built for repeated mating cycles; no user-replaceable parts are listed, so the whole adapter would be swapped if either fails.

What limits continuous output when the adapter runs at 65 W for hours?

Automatic overheating and overload cut-offs engage before components exceed safe temperature, capping sustained delivery at the rated 65 W.

How much heat and fan noise should I expect when it powers a Surface all day?

No fan is present; the unit relies on passive cooling, so it runs silently while the enclosure warms to a level managed by the built-in thermal protection.

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