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

usbroway

usbroway 45W USB-C AC Adapter for Acer Chromebook

SKU CH-R90W-KZRQX

45W USB-C AC adapter compatible with Acer Chromebook C721, C732, C733, C771, C851, C933, R721T, R751T, R752TN, CB315 and CP311 series

  • Battery TypeLithium-Ion
  • 45W output charges compatible Acer Chromebooks quickly
  • USB-C connector fits listed C732, C933, R721T, R751T and CB315 models
  • 100–240V input works on mains worldwide
  • Multi-protection circuit guards against over-voltage, over-current and short-circuits
  • CE, FCC and RoHS certified for safety compliance

45 W USB-C Adapter for Acer Chromebooks

This 45 W USB-C AC adapter replaces the original charger for a wide range of Acer Chromebook models including the C721, C732, C733, C771, C851, C933, R721T, R751T, R752TN, CB315, CP311 and SP714-51 series. It accepts AC 100-240 V input at 1.3 A, making it suitable for worldwide travel use. The new condition guarantees full rated performance from first use.

Sustained output across four voltage steps

The adapter delivers 5 V at 3 A, 9 V at 3 A, 15 V at 3 A and 20 V at 2.25 A, maintaining the full 45 W maximum continuously rather than only in short bursts. Multi-protection circuitry provides over-charge, over-voltage, over-temperature, over-current, short-circuit and lightning protection during extended charging sessions. CE, FCC and ROHS certificates confirm compliance with international safety standards.

USB-C connector with 20 V 2.25 A top step

The single deciding specification is the 20 V / 2.25 A output profile over USB-C, which must match the Chromebook's power requirement exactly. Buyers whose device needs a higher voltage step or a barrel connector cannot use this adapter. No other interface or connector type is supported.

Highlights

  • 45W output charges compatible Acer Chromebooks quickly
  • USB-C connector fits listed C732, C933, R721T, R751T and CB315 models
  • 100–240V input works on mains worldwide
  • Multi-protection circuit guards against over-voltage, over-current and short-circuits
  • CE, FCC and RoHS certified for safety compliance

Specifications

Battery TypeLithium-Ion

Questions about this item

How much heat does the 45W USB-C adapter generate when charging a Chromebook all day?

The adapter is rated for continuous 45W output with over-temperature protection, so it runs within safe thermal limits during extended charging sessions.

Does the USB-C charger require a separate power cord or does it plug directly into the wall?

The unit has an integrated AC plug accepting 100-240V input, so no extra cord is needed — just insert it into any standard outlet.

Will this 45W adapter charge an older Acer Chromebook C721 that originally shipped with a lower-wattage charger?

Yes, the adapter negotiates 5V, 9V, 15V or 20V automatically, so it safely powers the C721 and other listed models without overloading them.

Also in this aisle

People compared these

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