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Black rectangular 65W AC adapter with 6.8 ft cable and Microsoft Surface connector

2-Power A1706 65W AC adapter for Microsoft Surface Pro 3/4/5/6/7/8/X, Go/2/3, Book/2, Laptop Studio

SKU CH-EFWN-YDK3M

Replacement 65 W AC adapter supplying 15 V at 4 A with a 6.8 ft cord for Microsoft Surface Pro and Book models

  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Power adapter current3.42A
  • Key featuresShort Circuit Protection, Barrel Connector, Corded Electric,
  • Product weight0.24 kg
  • 65 W output powers Surface Pro, Book, Laptop Studio and Go models
  • 15 V 4 A delivery matches original 1706, 1800, 1625, 1735 and 1736 part numbers
  • Smart AI chip provides short-circuit, over-voltage, over-current and over-temperature protection
  • 100–240 V 50/60 Hz input works worldwide without a voltage converter
  • 8 ft cord plus USB 5 V 1 A port charges phone and laptop together

65 W AC adapter for Microsoft Surface

The 2-Power A1706 is a 65 W AC adapter that delivers 15 V at 4 A and includes a 5 V 1 A USB port for charging a phone. It accepts 100–240 V input and ships with a 6.8 ft cord. The barrel connector fits Surface Pro 3 through Pro 8, Pro X, Surface Go, Go 2, Go 3, Surface Book, Book 2 and Surface Laptop Studio.

Buyers replacing a 65 W, 44 W.

This unit covers all four original wattages and the listed part numbers 1706, 1800, 1625, 1735 and 1736. It is not for devices that require a higher output than 65 W or a different connector type.

Single output of 15 V 4 A (65 W)

The adapter provides one fixed 15 V 4 A rail; it does not negotiate other voltages. If your device needs a different fixed voltage or a USB-C Power Delivery profile, this is not the correct part.

How it compares

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

Price $38.99
Pricier than about 70% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand name2-Power
Model nameA1706
Part numberA1706
Power
Battery voltage rating20 V
Power adapter voltage20 V
Power adapter current3.42A
Size & build
Product weight0.24 kg

Questions about this item

What Microsoft Surface models does the 65W output support?

The adapter delivers 15V at 4A for 65W and is listed for Surface Pro 3 through 8, Pro X, Surface Laptop Studio, Surface Book and Book 2, plus Surface Go, Go 2 and Go 3.

Can the USB port charge a phone while the Surface is connected?

Yes, the built-in USB port supplies 5V at 1A (5W) for phones or small devices at the same time as the main 65W output.

How can I verify the adapter is delivering power after I plug it in?

The Surface charging LED on the magnetic connector will light up, and the battery icon in Windows will show the plug symbol indicating active charging.

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