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Small square USB power adapter with male and female ends, matte plastic and metal finish

eForChina

eForChina Big Square USB Gen1 Female to Male Power Adapter

SKU CH-R8YC-QG2Z8

A compact PC-and-metal adapter that converts a first-generation square USB female port to a matching male plug for laptop power connections

  • Changer TypePower Adapter
  • Durable PC and metal construction withstands daily use
  • Compact, lightweight design fits in any laptop bag
  • Plug-and-play operation requires no drivers or setup
  • Converts first-gen square female port to first-gen square male
  • Powers compatible ThinkPad, ThinkBook and Xiaoxin laptops

Square USB Gen1 Power Adapter

This power adapter connects a square USB Gen1 female port to a square USB Gen1 male plug. It is built for ThinkPad, ThinkBook and Xiaoxin laptops that use the larger square connector. The housing combines polycarbonate and metal for durability. It requires no drivers or configuration.

For owners of legacy square-port laptops

Users with devices that rely on the big square Gen1 interface can extend or replace a cable without changing the connector style. Buyers whose hardware uses standard rectangular USB-A, USB-C or any other power jack will not be able to use this adapter.

Square Gen1 female-to-male gender changer

The single deciding specification is the square Gen1 female-to-male interface pair. Only systems equipped with that exact big square port and plug will mate correctly; all other connector types are physically incompatible.

Highlights

  • Durable PC and metal construction withstands daily use
  • Compact, lightweight design fits in any laptop bag
  • Plug-and-play operation requires no drivers or setup
  • Converts first-gen square female port to first-gen square male
  • Powers compatible ThinkPad, ThinkBook and Xiaoxin laptops

Specifications

Changer TypePower Adapter

Questions about this item

What does the "first generation" label on the big square USB connector mean for charging speed?

It indicates the physical connector shape used on compatible ThinkPad, ThinkBook and Xiaoxin laptops; the adapter itself carries power without converting voltage or negotiating faster-charge protocols.

Which USB standard does the female-to-male square interface follow?

The square connector is a proprietary Lenovo power interface, not a standard USB-A or USB-C port, so it only fits matching first-generation square power jacks on supported laptops.

What clearance and orientation does the adapter need to plug in?

The PC-and-metal body is small and lightweight, adding minimal bulk, and the straight female-to-male layout requires only enough space for the square plug to seat fully into the laptop's power port.

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