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Rectangular black Lenovo power brick 42T4430 with detachable mains cord

Lenovo

Lenovo 42T4430 20V 4.5A 90W power adapter

SKU CH-RPVJ-9SYST MPN 42T4430

Supplies 20V 4.5A 90W power with 100-240V input and includes a power cord

  • Genuine Lenovo adapter ensures safe, reliable charging
  • 90 W output delivers full power for compatible laptops
  • 100-240 V input works worldwide without a converter
  • Built-in protection guards against voltage errors, shorts and overheating
  • Includes power cord for immediate use

Genuine Lenovo 90W AC adapter

This genuine Lenovo 42T4430 AC adapter delivers 20V at 4.5A for a total of 90W. It accepts a wide 100-240V input at 1.5A and 50-60Hz, making it suitable for international use. A power cord is included in the package. The unit is new and built with safeguards against incorrect voltage, short circuit and internal overheating.

Direct replacement for compatible Lenovo laptops

It suits owners of compatible Lenovo notebooks that require a 20V 4.5A 90W power supply with the matching connector. Users whose devices need a different voltage, amperage, wattage or tip size should look at another adapter.

20V 4.5A 90W output specification

The critical specification is the 20V 4.5A 90W output; the laptop must match these exact values for safe operation. Verify the required voltage, current and connector type before purchasing.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 58% of the 3,875 comparable items (median $23.99).

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Specifications

Product
Model name42T4430

Questions about this item

Will the 20V 4.5A output connector wear out and need replacing?

The 20V 4.5A output connector is built to Lenovo's original specification for the 42T4430 model and is rated for the adapter's full 90W capacity under normal use.

What limits the 90W output during continuous operation?

The 100-240V 1.5A input rating and internal thermal protection set the sustained limit at 90W output for the 42T4430 adapter.

How much heat and fan noise does the 90W adapter produce when running all day?

The 42T4430 has no fan; it relies on passive cooling and internal overheating safeguards, so it runs silently while warming to normal operating temperature.

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