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Black rectangular 45W USB-C power adapter with detachable cord

DELL 45W USB-C AC Adapter SK90A200225

SKU CH-KRJ4-XTA6D

45 W USB-C power adapter with multi-voltage output and built-in protection for compatible laptops

  • CompatibilityLaptops
  • Battery Voltage20V
  • AC Adapter Voltage20V
  • AC Adapter Current11.8A
  • AC Adapter Output Power85W
  • FeaturesFast Charging, USB Type C, Corded Electric, 0, type_f_2pin_d
  • Delivers 45 W through USB-C for fast charging
  • Supports 5 V to 20 V profiles across multiple devices
  • Intelligent chip guards against over-voltage and short circuits
  • Pure copper cable resists wear for long service life
  • Works with Dell, HP, Acer, ASUS, Samsung and Google USB-C laptops

What it is and who it is for

This 45W USB-C AC adapter from Dell delivers up to 20V at 2.25A through a USB Type-C connector. It supports multiple voltage profiles including 5V, 9V, 12V, 15V and 20V at 3A each, making it suitable for a wide range of USB-C laptops, tablets and phones. The unit accepts 100V to 240V AC input at 50Hz to 60Hz for worldwide use. Builders needing more than 45W or a barrel-connector output should look elsewhere.

Sustained-load behaviour

The adapter uses an intelligent chip to manage overcharging, overheating, overvoltage and short-circuit protection during continuous operation. Pure copper conductors are employed to resist wear, deformation and aging over long service life. Output power is rated at 45W with a maximum current of 2.25A at 20V, while the specifications also list an 85W figure and 11.8A current that may refer to a different operating mode.

Practical limits of the USB-C interface

The USB-C port provides power delivery across five fixed voltage steps up to 20V, but the adapter does not support higher wattage profiles such as 60W or 100W. It cannot charge devices that require proprietary barrel connectors or voltages beyond the listed 5V to 20V range. Compatibility is limited to equipment that accepts standard USB-C power delivery at these specific voltage and current levels.

Highlights

  • Delivers 45 W through USB-C for fast charging
  • Supports 5 V to 20 V profiles across multiple devices
  • Intelligent chip guards against over-voltage and short circuits
  • Pure copper cable resists wear for long service life
  • Works with Dell, HP, Acer, ASUS, Samsung and Google USB-C laptops

Specifications

BrandDELL
ModelSK90A200225
Part NumberSM45CL-01
CompatibilityLaptops
Battery Voltage20V
AC Adapter Voltage20V
AC Adapter Current11.8A
AC Adapter Output Power85W
FeaturesFast Charging, USB Type C, Corded Electric, 0, type_f_2pin_de_es, 45 volts, 2.25 amps
Dimension14.33in W x 12.83in H x 9.06in D

Questions about this item

Does the 45W USB-C adapter run hot or draw much power when left plugged in all day?

The unit delivers up to 45W through its USB-C port and accepts 100V-240V AC input at 50-60Hz; normal operation stays within those ratings.

What must I already own for this charger to work with my laptop?

Your device needs a USB-C charging port that supports 5V/3A, 9V/3A, 12V/3A, 15V/3A or 20V/2.25A input.

Will this 45W adapter safely charge an older Dell XPS 13 9360 alongside newer USB-C gear?

Yes, the intelligent chip provides overcharging, overheating, overvoltage and short-circuit protection for any compatible USB-C device.

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