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Short cable with USB-C socket and rectangular 11.0 by 4.5 mm plug

Fervit

Fervit USB-C to Rectangle 11.0x4.5mm PD Trigger Cable 65W 18-20V

SKU CH-0FYC-B97M7

Connects a 65 W USB-C charger to a laptop with a rectangular 11.0×4.5 mm DC port delivering 18-20 V

  • Charge ThinkPad X1 Carbon from a USB-C wall charger
  • Built-in PD trigger negotiates 18-20 V output
  • Rectangle 11.0x4.5 mm tip fits legacy DC port
  • Works with any 65 W USB-C power source
  • No 5 V support — laptop voltage only

USB-C to 11.0x4.5mm PD trigger cable

This Fervit cable adapts a 65W USB-C charger to a rectangular 11.0x4.5mm DC input. It targets owners of compatible ThinkPad laptops that require 18-20V barrel power. The integrated PD emulator triggers the correct voltage profile from the charger. No separate power brick is needed when a suitable USB-C source is available.

Sustained 65W delivery through PD negotiation

The cable requests 18-20V from the charger and passes up to 65W continuously to the laptop. It does not support 5V output, so the connected charger must negotiate the higher voltage rail. Performance stays stable as long as the USB-C source maintains its rated power. The trigger chip handles the handshake without user intervention.

Replaces a proprietary 18-20V barrel adapter

This cable replaces the original rectangular-tip AC adapter for supported ThinkPad models. The upgrade is worthwhile when you want to travel with a single 65W USB-C charger for multiple devices. It is not for laptops that need more than 65W or a different barrel size. It also cannot charge devices that only accept 5V over USB-C.

Highlights

  • Charge ThinkPad X1 Carbon from a USB-C wall charger
  • Built-in PD trigger negotiates 18-20 V output
  • Rectangle 11.0x4.5 mm tip fits legacy DC port
  • Works with any 65 W USB-C power source
  • No 5 V support — laptop voltage only

Specifications

BrandFervit

Questions about this item

Does the 65 W USB-C charger stay cool when the cable runs at 18-20 V all day?

The cable simply passes the negotiated 18-20 V from a 65 W PD charger; heat depends on the charger itself, not on the trigger circuit inside the plug.

Which charger must I already own for this rectangle 11.0x4.5 mm plug to work?

Any USB-C Power Delivery charger rated at 65 W or higher that can output 18 V or 20 V will activate the trigger and power the laptop port.

Will this cable charge an older ThinkPad X1 Carbon that still uses the rectangle 11.0x4.5 mm DC jack?

Yes, the male rectangle 11.0x4.5 mm connector fits that legacy port and delivers 18-20 V from a compatible 65 W USB-C PD charger.

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