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Black 5.5 by 2.1 mm female to square male power adapter for Lenovo ThinkPad X230S

Ruth's sister

Ruth's sister 5.5x2.1mm Female to Square Plug Adapter for Lenovo ThinkPad X230S

SKU CH-VAK7-GDCNQ

A 5.5 × 2.1 mm female-to-square-plug adapter powers Lenovo ThinkPad X230S notebooks from a standard barrel supply at 19 V or 20 V up to 90 W

  • Connect standard 5.5×2.1 mm barrel power to square-pin ThinkPad jack
  • Supports 19 V and 20 V input for wide charger compatibility
  • Handles 45 W, 65 W and 90 W loads without overload
  • Compact 8 g adapter adds negligible bulk to travel kit
  • Female-to-male gender lets you reuse existing round-tip power banks

Purpose and compatibility

This adapter converts a standard 5.5x2.1mm round DC barrel plug into the square-pin connector used by the ThinkPad X230S. It lets owners power that ultrabook from a compatible 19V or 20V power bank or third-party charger without carrying the original brick.

Voltage and power limits

The unit accepts 19V or 20V input and is rated for 45W, 65W and 90W loads; exceeding those figures will cause overload. It cannot be used with USB-to-5.5mm cables because the voltage differs from USB specifications.

Installation notes

Simply plug the barrel end into the power source and the square end into the laptop — no tools or drivers are required. The only common mistake is connecting a USB-derived 5V lead, which will not deliver the required 19V or 20V and leaves the system unpowered.

Highlights

  • Connect standard 5.5×2.1 mm barrel power to square-pin ThinkPad jack
  • Supports 19 V and 20 V input for wide charger compatibility
  • Handles 45 W, 65 W and 90 W loads without overload
  • Compact 8 g adapter adds negligible bulk to travel kit
  • Female-to-male gender lets you reuse existing round-tip power banks

Specifications

No published specifications for this item yet.

Questions about this item

What does the 90 W load rating mean when I plug this adapter into my laptop?

It means the adapter can safely pass up to 90 W from a 19 V or 20 V source to a ThinkPad X230S without overheating.

Which voltage standards does the square plug support in practice?

The square plug works with 19 V and 20 V ThinkPad power supplies, matching the X230S input range.

Will the 5.5 mm by 2.1 mm female jack fit my existing power bank cable?

Yes, the female end accepts any standard 5.5 mm outer diameter, 2.1 mm inner diameter barrel plug.

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