eForChina
eForChina DC5.5x2.1mm Type-C to DC Power Adapter Gender Changer 1.8m 140W
A 1.8m braided Type-C to DC cable delivers up to 140W PD power with multiple tip sizes for laptop charging
- Changer TypePower Adapter
- 140W PD input with 65W/100W/130W backward compatibility
- Five DC tip sizes from 4.5x3.0mm to 7.4x5.0mm including 5.5x2.1mm
- Built-in PD3.1 Emark decoy chip with overload protection
- 8m nylon braided cable for wear-resistant durability
- Plug-and-play design with no driver installation required
Power Adapter Purpose
This 1.8 metre cable converts a Type-C PD source into a 5.5 x 2.1 mm DC barrel output. It targets owners of legacy laptops or devices that still rely on a centre-positive barrel jack and want to charge them from a modern USB-C power brick.
Capacity And Headroom
The adapter negotiates up to 140 W at 20 V 7 A and falls back to 130 W, 100 W or 65 W profiles when the source cannot deliver the peak. It stops at the negotiated limit, so a 65 W charger will only ever provide 65 W regardless of the cable rating.
Build Integration
Five interchangeable tips cover 4.5 x 3.0 mm, 7.4 x 5.0 mm, 5.5 x 2.1 mm, 5.5 x 2.5 mm and 6.0 x 3.7 mm barrels, letting one cable serve multiple machines. A built-in PD3.1 Emark decoy chip handles the handshake and overload protection automatically. Buyers whose devices use a proprietary or non-standard barrel size not listed above cannot use this adapter.
Highlights
- 140W PD input with 65W/100W/130W backward compatibility
- Five DC tip sizes from 4.5x3.0mm to 7.4x5.0mm including 5.5x2.1mm
- Built-in PD3.1 Emark decoy chip with overload protection
- 8m nylon braided cable for wear-resistant durability
- Plug-and-play design with no driver installation required
Specifications
| Changer Type | Power Adapter |
|---|
Questions about this item
Will the Type-C 140W PD input negotiate correctly with my existing 100W or 65W USB-C chargers?
The adapter accepts Type-C 140W PD power and is backward compatible with 130W, 100W and 65W sources, so your current chargers will work at their rated output.
How can I confirm the built-in PD3.1 Emark decoy chip is delivering the expected 20V voltage to my laptop?
Use a USB-C power meter between the charger and the adapter; it should show a 20V PDO when the laptop negotiates the fast-charge profile.
Which DC tips are supplied and do I need to buy any extra connectors for a 5.5 × 2.1 mm port?
The cable includes DC4.5×3.0mm, DC7.4×5.0mm, DC5.5×2.1mm, DC5.5×2.5mm and DC6.0×3.7mm tips; the 5.5×2.1 mm tip is already provided.
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