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Black nylon-braided cable with USB-C female and 7.9x5.5mm DC male connectors

Lirealar

Lirealar USB-C to 7.9x5.5mm 100W PD Adapter Cable

SKU CH-SW2S-PMV11

Converts a USB-C PD charger into a 7.9×5.5 mm tip for Lenovo laptops up to 100 W

  • ColorBlack
  • Charges up to 100W via USB-C PD
  • Converts USB-C to 7.9x5.5mm Lenovo tip
  • Built-in PD and E-Mark chips for handshake
  • Nylon-braided cable with tinned copper conductors
  • Works with Lenovo 90W and below 7.9mm models

USB-C PD adapter cable for Lenovo

This cable converts a USB-C Power Delivery charger into a 7.9x5.5mm DC tip for compatible Lenovo laptops. It supports up to 100W input and contains built-in PD and E-Mark chips for power negotiation. The nylon-braided jacket protects tinned copper conductors inside a gold-plated shell. It is a new accessory for legacy ThinkPad power requirements.

Suits owners of listed ThinkPad models

Buyers with a 90W or lower Lenovo laptop using the 7.9x5.5mm barrel connector can charge from a modern USB-C PD brick. The adapter requires a charger rated at or above the laptop's native input, such as the 19V 4.74A 90W example. Users needing a slimmer tip, a different voltage profile, or simultaneous data transfer should look elsewhere.

Handles 90W and 100W PD sources

The cable comfortably powers ThinkPad T60, T61, T420 and T430 systems when paired with a sufficient USB-C charger. Headroom exists for any 90W-or-below unit matching the 7.9x5.5mm specification. It runs out if the PD source falls short of the laptop's rated wattage or if the barrel size does not match exactly.

Highlights

  • Charges up to 100W via USB-C PD
  • Converts USB-C to 7.9x5.5mm Lenovo tip
  • Built-in PD and E-Mark chips for handshake
  • Nylon-braided cable with tinned copper conductors
  • Works with Lenovo 90W and below 7.9mm models

Specifications

ColorBlack

Questions about this item

Which USB-C charger wattage do I need to power a 90 W Lenovo laptop through this adapter?

Use a USB-C Power Delivery charger rated at 90 W or higher; the cable supports up to 100 W input so the charger must meet or exceed the laptop’s 90 W requirement.

Will this cable fit the 7.9 × 5.5 mm barrel jack on my ThinkPad T60 or T420?

Yes, the male DC tip is a 7.9 × 5.5 mm round connector compatible with ThinkPad T60, T61, T420, T430 and other Lenovo models using that barrel size.

How can I confirm the adapter is negotiating the correct power after I plug it in?

The built-in PD inducing and E-Mark chips handle negotiation automatically; verify the laptop shows it is charging at the expected wattage (for example 19 V 4.74 A for a 90 W unit).

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