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
90-degree DC 7.9×5.4mm to USB-C adapter with aluminium finish

SMUGDESK

SMUGDESK 90° DC 7.9×5.4mm to USB-C PD Adapter 140W/100W

SKU CH-69GM-3WV2N

Converts Lenovo ThinkPad 7.9×5.4mm barrel power bricks to USB-C PD, delivering up to 140W peak and stable 100W output for laptops and phones

  • 90° elbow saves desk space and prevents cable strain
  • 140 W peak and 100 W stable PD output powers demanding laptops
  • PD 3.1 trigger IC auto-negotiates 5 V, 9 V, 15 V, 20 V profiles
  • OVP, OCP, SCP protection shields devices from unstable input
  • Reuses legacy 7.9×5.4 mm ThinkPad bricks as universal USB-C chargers

DC 7.9×5.4mm to USB-C PD Adapter

This 90-degree elbow adapter converts a classic Lenovo ThinkPad 7.9×5.4mm barrel connector into a USB-C Power Delivery plug. It supports peak 140W and stable 100W output for fast charging laptops and phones. The built-in PD3.1 trigger IC auto-negotiates 5V, 9V, 15V and 20V profiles. A compact aluminium casing houses multi-protection circuitry for safe operation.

Ideal for repurposing legacy ThinkPad power bricks

Users with original Lenovo 7.9×5.4mm power adapters can reuse them to charge USB-C MacBooks, Dell XPS, Lenovo and HP notebooks, plus Android phones. The right-angle L-shape saves space beside side ports and reduces cable strain. Buyers needing a straight connector or a different barrel size should look at other adapter types.

Check your power brick and device specs

Verify your existing power supply has the exact 7.9×5.4mm yellow-core barrel output. Confirm the brick can deliver sufficient wattage for your target USB-C device up to 140W peak. Ensure your laptop or phone accepts USB-C PD charging at 5V, 9V, 15V or 20V profiles. No extra cables are included in the package.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 94% of the 3,875 comparable items (median $23.99).

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

Specifications

No published specifications for this item yet.

Questions about this item

What barrel-plug size must my existing Lenovo ThinkPad power brick have to fit this adapter?

The adapter accepts a standard DC 7.9×5.4 mm female input, which is the classic yellow-core barrel port used on Lenovo ThinkPad chargers.

Will the adapter negotiate the correct voltage for my older USB-C laptop that only supports 5 V, 9 V, 15 V or 20 V profiles?

Yes, the built-in PD 3.1 trigger IC automatically negotiates 5 V, 9 V, 15 V and 20 V profiles so older USB-C notebooks and phones charge at their supported rates.

How can I confirm the adapter is delivering up to 140 W peak or 100 W stable power after I plug it in?

Check the charging indicator on your laptop or phone — it should show fast-charge or PD mode, and the device will draw up to 140 W peak or a steady 100 W depending on its own power rules.

More in AC Adapters & Power Bricks

Similar items