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Short square-plug to USB-C adapter cable with nylon braid

eForChina

eForChina PD 100W 18.5-20V Square Plug to USB-C Adapter Nylon Braid Cable

SKU CH-0PZ6-AGBD1

Converts an 18.5-20 V square laptop port to USB-C for 100 W PD charging from power banks or wall chargers

  • Adapter typePower Adapter
  • Charges devices via USB-C PD at 100W
  • 5-20V square plug fits ThinkPad power inputs
  • 9cm cable keeps desk space clear and tidy
  • Nylon braid protects against daily wear and tear
  • Compact adapter replaces bulky proprietary power bricks

Purpose and compatibility

This adapter converts a square 18.5-20V laptop power port to a USB-C PD input. It lets you charge compatible ThinkPad, ThinkBook or Xiaoxin notebooks from a 100W USB-C charger or power bank. The short 9cm cable keeps the connection tidy on a desk or in a bag. It is not for laptops that require a different voltage range or a barrel connector.

Thermals noise and power

The unit has no active cooling, so it runs silently during normal charging. Power draw matches the attached charger up to the 100W rating and the 20V output limit. Heat stays low because the adapter only passes current through its internal circuitry. No fan noise or coil whine is produced in typical use.

Sustained load behaviour

Under continuous 100W delivery the adapter maintains a stable 20V output without throttling. The nylon braid protects the short cable from wear during repeated plug cycles. It is not for devices that need more than 100W or a voltage outside the 18.5-20V window.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 92% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePower Adapter

Questions about this item

How do I connect the 9 cm square-plug cable to my ThinkPad and a 100 W USB-C PD charger?

Plug the square end into the laptop's 18.5-20 V input and the USB-C end into a charger that delivers 100 W PD power.

What part of this adapter is most likely to wear out first?

The 9 cm nylon-braided cable and the square-plug connector endure repeated insertion stress, so they will need replacement before the USB-C end.

At what power level will the adapter hit its limit during continuous charging?

The 100 W PD rating is the maximum sustained output; drawing more will trigger the charger's protection or overheat the 9 cm cable.

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