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Short black adapter cable with 5.5mm barrel socket and large square USB plug

eForChina

eForChina 5.5mm x 2.5mm to Big Square USB Power Converter Cable for ThinkPad/ThinkBook/Xiaoxin gender changer

SKU CH-X8YR-ZV56S

A 13 cm power converter cable with a 5.5 mm x 2.5 mm female connector and a big square USB plug for ThinkPad X1 Carbon 0B47046

  • Adapter typePower Adapter
  • Converts 5.5mm x 2.5mm power to big square USB for ThinkPad X1 Carbon 0B47046
  • Compact 13 cm cable keeps workspace tidy while connecting legacy charger
  • Female 5.5 x 2.5 mm interface accepts standard barrel plug securely
  • Designed for ThinkPad, ThinkBook and Xiaoxin models needing square USB power
  • Brand new adapter cable ensures reliable power delivery for compatible laptops

Purpose and audience

This cable converts a 5.5mm x 2.5mm barrel power source to the big square USB connector used by ThinkPad, ThinkBook and Xiaoxin laptops. It is intended for owners of those specific models who need to power their device from an alternative adapter. Buyers whose laptops use a different proprietary tip or standard USB-C charging cannot use this converter.

Build integration

The adapter requires a power supply equipped with a 5.5mm x 2.5mm male plug and delivers the big square USB interface to the notebook. Its 13cm length bridges the gap between the external brick and the laptop port without adding bulk. It frees the user from carrying the original charger when a compatible barrel-tip supply is already available.

Capacity and headroom

The converter handles the voltage and current levels expected by the ThinkPad X1 Carbon 0B47046 through its 5.5mm x 2.5mm female interface. It runs out of utility if the source adapter cannot meet the laptop’s power demand or if the target machine uses a different charging connector such as USB-C or a slim-tip barrel.

How it compares

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

Price $6.99
Cheaper than about 90% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePower Adapter

Questions about this item

Will the 13 cm cable reach from my ThinkPad X1 Carbon 0B47046 power brick to the laptop without strain?

The cable is about 13 cm long, designed to bridge the short gap between the 5.5 mm x 2.5 mm barrel output on the original adapter and the square USB power port on the ThinkPad X1 Carbon 0B47046.

Does the converter get warm or draw extra power when the laptop charges all day?

It is a passive gender changer with no active electronics, so it adds negligible resistance and does not generate noticeable heat or increase power draw during continuous charging.

Must I already own the original ThinkPad 5.5 mm x 2.5 mm barrel-tip power supply for this adapter to work?

Yes, the female 5.5 mm x 2.5 mm socket accepts only that specific barrel connector, so the original ThinkPad charger or an exact-match replacement is required.

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