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Black rectangular power brick with magnetic Surface connector and USB-A port on side

1703 65W 15V 4A USB-A laptop charger

SKU CH-KGX8-0Q794 MPN 1703

A 65 W 15 V 4 A USB-A power supply with magnetic connector and 10 ft cable for Surface Pro and Laptop models

  • Battery type96 W
  • 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
  • Powers Surface Pro 3 through 10 and X with 65 W 15 V 4 A output
  • Charges Surface Laptop 1 to 6 and Studio models from one adapter
  • Works with Surface Book 1 to 3 and Go 1 to 3 for wide coverage
  • Includes USB-A port at 5 V 1 A for phone charging
  • 10 ft cable with magnetic connector and indicator light

65W Surface Charger with USB-A

This 65W power supply delivers 15V at 4A through a magnetic connector designed for Microsoft Surface Pro and Laptop models. A built-in USB-A port adds 5V 1A output for charging phones or accessories. The unit accepts AC 100-240V input for worldwide use.

Replaces 44W and 36W Adapters

It supersedes older Microsoft chargers rated at 44W (15V 2.58A) and 36W (12V 2.58A), cutting charge time so a Surface Pro 7 reaches full capacity in roughly 30 minutes. The 10-foot cable removes the usual outlet-distance constraint. Buyers needing more than 65W for larger devices should look elsewhere.

Magnetic Connector and USB-A Limits

The magnetic tip aligns automatically but is proprietary to Surface ports, so it cannot charge laptops that use barrel or USB-C power inputs. The USB-A port is limited to 5W, making it unsuitable for fast-charging modern phones or powering bus-powered drives. The 65W ceiling also rules out high-performance workloads that demand sustained higher output.

How it compares

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

Price $19.99
Cheaper than about 72% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model nameDHM1749
Part numberDHM1749
Power
Battery type96 W
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
Product weight0.279 kg

Questions about this item

How much clearance does the 10-foot cable and magnetic connector need at the Surface charging port?

The magnetic tip requires a few millimetres of flat space around the Surface Connect port to seat cleanly; the 10-foot cord then runs freely without pulling on the socket.

What is the correct order to connect the 100-240V input, the 15V 4A magnetic tip and the USB-A 5V 1A port so the indicator lights?

Plug the AC cord into the brick first, then attach the magnetic tip to the Surface; the LED confirms 15V 4A output before you optionally use the USB-A port for a phone.

After roughly 20000 bend cycles, which part of the 10-foot cable or magnetic tip is most likely to need replacement?

The TPE-jacketed copper cable is rated for 20000-plus bends; the magnetic tip and strain reliefs are built to last the same life, so the whole assembly is replaced together if wear appears.

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