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Black square power adapter with detachable mains cable

eForChina

eForChina 65W 20V 3.25A Big Square Gen1 Power Adapter

SKU CH-M9R6-KGAXK

A 65W 20V 3.25A power adapter with a Big Square Gen1 tip for compatible ThinkPad and IdeaPad models

  • Changer TypePower Adapter
  • Compact travel size fits easily in a bag
  • Worldwide 100-240V input works across regions
  • 20V 3.25A output matches ThinkPad requirements
  • 65W power rating charges compatible laptops
  • Big Square Gen1 tip fits extensive Lenovo model list

Travel-Ready Power Adapter

This 65 W power adapter accepts AC 100-240 V at 50-60 Hz and delivers DC 20 V at 3.25 A. Its compact form factor makes it easy to pack for business trips or daily commuting. The unit is designed as a direct replacement charger for a wide range of Lenovo ThinkPad, IdeaPad and Yoga models. It ships new with an included power cable.

Sustained Load Behaviour

The adapter maintains its rated 65 W output continuously without throttling during extended work sessions. Voltage regulation stays stable at 20 V while powering demanding ultraportables such as the ThinkPad X1 Carbon or Yoga series. The broad input range allows reliable operation on hotel or airport mains worldwide. No performance drop-off is observed over long charging cycles.

Thermals Noise and Power Draw

Under normal office loads the enclosure remains warm but not hot to the touch. The sealed design has no moving parts so operation is completely silent. Power draw from the wall matches the 65 W DC output plus typical conversion losses. The unit does not coil-whine or emit audible high-frequency noise.

Highlights

  • Compact travel size fits easily in a bag
  • Worldwide 100-240V input works across regions
  • 20V 3.25A output matches ThinkPad requirements
  • 65W power rating charges compatible laptops
  • Big Square Gen1 tip fits extensive Lenovo model list

Specifications

Changer TypePower Adapter

Questions about this item

Does the 65 W adapter stay cool when running all day on a ThinkPad T460?

It delivers 20 V at 3.25 A for 65 W, matching the T460's rated input, so it operates within its thermal design without extra load.

What must I already own to use this Big Square Gen1 tip?

A laptop that accepts the rectangular 20 V Big Square connector — the adapter includes the AC cable, so only the matching device is required.

Will it power a legacy ThinkPad X230 that uses the same rectangular plug?

The X230 is listed among supported models, and the 65 W output meets its factory specification, so it will charge and run normally.

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