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Black rectangular power brick with USB-C cable and detachable 9ft cord

DELL DZ65150400 85W USB-C AC Adapter 9ft

SKU CH-RTHB-MQPMB

85W USB-C power adapter with 9ft cable delivers 65W Surface charging plus 20W USB-C fast charging

  • 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
  • 85W total output powers demanding laptops quickly
  • 20W USB-C port charges phones three times faster than 5W
  • 9ft cable gives flexible placement at home or office
  • 100-240V input works worldwide without a converter
  • CE certified for safety and regulatory compliance

Purpose and Audience

This 85W USB-C AC adapter delivers up to 65W to the Surface connector plus a 20W USB-C port for simultaneous charging. It is intended for owners of Microsoft Surface Pro, Surface Laptop, Surface Go or Surface Book devices who need a single power brick for both the proprietary port and a USB-C device.

Sustained Load Behaviour

The unit accepts 100-240V AC input at 50/60Hz and maintains a steady 20V DC output at 11.8A. Fast-charging claims cite 50% battery in 30 minutes for a compatible 13-inch device, indicating the adapter can hold its rated output through a typical charge cycle without throttling.

Installation and Common Issues

Connection is straightforward: plug the AC cord into the wall, attach the Surface connector to the device and use the USB-C port for a second device if required. The 9ft cable provides reach, but the brick dimensions of 14.33in W x 12.83in H x 9.06in D mean it occupies significant desk or power-strip space. Buyers who want a compact travel charger or a pure USB-C Power Delivery brick without the proprietary connector will find this unit unsuitable.

How it compares

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

Price $29.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Brand nameDELL
Model nameDZ65150400
Part numberDZ65200325
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

How much heat or noise does the 85W adapter produce when it runs all day?

The brick is fanless and silent; with 100-240V input and 20V 11.8A output it stays cool during continuous use.

What must I already own for the DELL DZ65150400 to charge my laptop?

You need a compatible Microsoft Surface device — Pro 11/10/9/8/7/7+/6/5/4/3/X, Laptop 7/6/5/4/3/2, Go 4/3/2 or Book 3/2/1 — and a standard wall socket.

Will the 20W USB-C port on this charger work with my older Surface that only has the proprietary connector?

The USB-C port delivers up to 20W for any USB-C device, while the fixed cable supplies 65W to the proprietary Surface connector on legacy models.

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