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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 Type96W
  • Battery Voltage20V
  • AC Adapter Voltage20V
  • AC Adapter Current11.8A
  • AC Adapter Output Power85W
  • FeaturesUSB Type A, Corded Electric, 1, type_a_2pin_na, 15 volts, 4
  • 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.

Highlights

  • 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

Specifications

BrandDELL
ModelDHM1749
Part NumberDHM1749
Battery Type96W
Battery Voltage20V
AC Adapter Voltage20V
AC Adapter Current11.8A
AC Adapter Output Power85W
FeaturesUSB Type A, Corded Electric, 1, type_a_2pin_na, 15 volts, 4 amps
Dimension14.33in W x 12.83in H x 9.06in D
Weight0.279 kilograms

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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