We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Ruth's sister

Ruth's sister 5.5*2.1 Portable square USB DC tips internal power cable

SKU CH-EGCY-N69P3

Converts a USB port to a 5.5 mm by 2.1 mm square DC tip for Lenovo laptop charging

  • 5 × 2.1 mm barrel fits Lenovo laptop chargers
  • Square USB plug connects to standard USB power sources
  • Portable cable design suits travel and spare-adaptor kits
  • Converts USB output to DC input for compatible devices

Portable USB DC tip cable

This 5.5 by 2.1 mm barrel connector cable adapts a USB power source to Lenovo laptops that require the square tip format. It serves as a compact replacement or spare lead for charging from standard USB chargers or power banks.

5.5 mm by 2.1 mm barrel specification

The fixed tip size matches devices designed for this exact barrel diameter and centre-pin measurement. It will not fit laptops that use a different barrel size, a USB-C power input or a proprietary multi-pin connector.

Highlights

  • 5 × 2.1 mm barrel fits Lenovo laptop chargers
  • Square USB plug connects to standard USB power sources
  • Portable cable design suits travel and spare-adaptor kits
  • Converts USB output to DC input for compatible devices

Specifications

No published specifications for this item yet.

Questions about this item

Will the 5.5*2.1 mm square DC tip fit the power port on my older Lenovo laptop?

The cable uses a 5.5 mm outer diameter and 2.1 mm inner diameter square tip, which matches many legacy Lenovo barrel connectors; check your original adapter tip for the same dimensions.

How can I confirm the USB-to-DC cable is delivering power correctly after I plug it in?

Connect the USB end to a powered source and the square tip to the laptop; the device should show charging status immediately, confirming the 5.5*2.1 mm connection is live.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

More in Internal Power Cables

Similar items

Same shelf, same checkout — eight coins and a 30-minute rate lock.