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Small black adapter with 5.5mm round female socket and square male plug

Ruth's sister

Ruth's sister 5.5mm x 2.1mm Female to Square Connector for ThinkPad 10 Helix 2 12V 3A

SKU CH-EVF1-50FJR

Converts a 5.5 mm × 2.1 mm female barrel plug to the small square connector used by the ThinkPad 10 Helix 2, supporting 12 V at 3 A

  • Fits ThinkPad 10 and Helix 2 adapters
  • 5 mm by 2.1 mm female to square plug
  • Handles 12 V at 3 A power delivery
  • New internal power cable for DC conversion

Connector for ThinkPad 10 Helix 2

This adapter converts a 5.5 mm by 2.1 mm female DC jack to the small square connector used by the ThinkPad 10 and Helix 2. It lets owners of those tablets power the device from a standard 12 V 3 A barrel supply. The part is intended for repair or replacement scenarios where the original square tip is damaged or lost.

Passive adapter with no active components

The cable assembly contains no electronics, so it adds no measurable heat, noise or power draw beyond the supply itself. Current passes straight through the contacts up to the rated 12 V 3 A limit. Normal use is silent and thermally neutral.

Highlights

  • Fits ThinkPad 10 and Helix 2 adapters
  • 5 mm by 2.1 mm female to square plug
  • Handles 12 V at 3 A power delivery
  • New internal power cable for DC conversion

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 5.5 mm by 2.1 mm female end to the ThinkPad 10 Helix 2 square port?

Align the small square connector with the device's power input, push straight in until it seats firmly, then plug the 5.5 mm by 2.1 mm barrel plug from your 12 V 3 A adapter into the female socket.

Will the square connector or the 5.5 mm by 2.1 mm barrel wear out after repeated use?

The connector is rated for typical daily insertion cycles; if the square tip feels loose or the barrel grip weakens, replace the adapter to maintain a reliable 12 V 3 A connection.

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