We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular AC adapter with detachable power cord, 45W 20V 2.25A output

Acer America

Acer America 45W 20V 2.25A ac adapter C721 C733 C733T C851 C851T C871 C933 C933T CB314-1H CB314-1HT

SKU CH-RK3B-YED0B

45 W 20 V 2.25 A AC adapter with power cord replaces multiple Acer part numbers for Chromebook 11, 311, 314, 315, 317, 511, 512, 712, Spin and TravelMate models

  • AC Adapter Voltage20V
  • AC Adapter Current2.25A
  • AC Adapter Output Power45W
  • 45 W output powers compatible Acer Chromebooks and Spin models efficiently
  • 20 V 2.25 A specification matches original adapter requirements for safe charging
  • Replaces multiple Acer part numbers including KP.04503.007 and PA-1450-78AP
  • Supports Chromebook 311, 314, 315, 317, 511, 512, 712 and Spin series
  • New genuine Acer adapter includes power cord for immediate use

Acer 45 W Chromebook adapter

This 45 W AC adapter delivers 20 V at 2.25 A for a wide range of Acer Chromebook models including the C721, C733, C851, C933 and CB314 series. It replaces multiple Acer part numbers such as KP.04503.007 and PA-1450-78AP and ships with the power cord included. The unit is supplied new and ready for immediate use.

Continuous 45 W output under load

The adapter maintains its rated 45 W output during extended charging sessions rather than only in brief bursts. Steady 20 V delivery keeps the battery charging at the designed rate while the Chromebook remains in use. Thermal design allows sustained operation without throttling the output current.

Verify connector and voltage match

Confirm that your Chromebook requires a 20 V 2.25 A input and uses the same barrel connector as the original Acer supply. Check the label on the existing adapter for the KP or PA part numbers listed above to ensure compatibility. This unit is not suitable for devices needing a different voltage or higher wattage.

Highlights

  • 45 W output powers compatible Acer Chromebooks and Spin models efficiently
  • 20 V 2.25 A specification matches original adapter requirements for safe charging
  • Replaces multiple Acer part numbers including KP.04503.007 and PA-1450-78AP
  • Supports Chromebook 311, 314, 315, 317, 511, 512, 712 and Spin series
  • New genuine Acer adapter includes power cord for immediate use

Specifications

BrandAcer
AC Adapter Voltage20V
AC Adapter Current2.25A
AC Adapter Output Power45W

Questions about this item

Does the 45W 20V 2.25A adapter run hot or make noise when powering a Chromebook all day?

The 45W unit delivers 20V at 2.25A with no moving parts, so it stays cool and silent during continuous use.

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

You need an Acer Chromebook from the supported list such as the C721, C733, C851, C933, CB314-1H or Spin CP311-2H that accepts a 20V 2.25A barrel connector.

Will this 45W adapter charge an older Acer TravelMate B311-33 alongside a newer Chromebook Spin 511?

Yes, the adapter matches the 20V 2.25A requirement for both the TravelMate B311-33 and Spin 511 models listed.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.