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Small black DC adapter with 4.0 x 1.7mm male and 5.5 x 2.5mm female ends

eForChina

eForChina 240W 4.0 x 1.7mm Male to 5.5 x 2.5mm Female Adapter

SKU CH-RTSE-TWAMT

Converts a 4.0 x 1.7mm male power tip to a 5.5 x 2.5mm female jack for 240W charging

  • Changer TypePower Adapter
  • Converts 4.0 x 1.7mm power plugs to standard 5.5 x 2.5mm jacks
  • Supports up to 240W for high-power laptop and device charging
  • Plug-and-play design requires no drivers or configuration
  • Compact form factor fits easily in a laptop bag or pocket
  • Durable DC converter plug construction ensures reliable daily connections

DC Power Adapter Connector

This adapter converts a 4.0 x 1.7mm male barrel plug into a 5.5 x 2.5mm female socket. It supports power delivery up to 240W for compatible devices. The compact form factor makes it a practical accessory for laptop and peripheral connections. It is designed for users needing to match different barrel connector standards.

Build Quality and Daily Use

The small size allows the adapter to sit inline without adding bulk to the cable run. A plug-and-play design means no drivers or configuration are required for operation. The gender changer format bridges the two specific barrel dimensions directly. It suits setups where the power supply tip does not match the device input jack.

Included Accessories and Software

The package contains only the adapter unit itself with no additional cables or mounting hardware. No software installation or firmware updates are involved in its use. The product addresses the single need of connector compatibility between the two stated sizes. It does not serve buyers who require voltage regulation or multiple tip options.

Highlights

  • Converts 4.0 x 1.7mm power plugs to standard 5.5 x 2.5mm jacks
  • Supports up to 240W for high-power laptop and device charging
  • Plug-and-play design requires no drivers or configuration
  • Compact form factor fits easily in a laptop bag or pocket
  • Durable DC converter plug construction ensures reliable daily connections

Specifications

Changer TypePower Adapter

Questions about this item

What power level does the 4.0 x 1.7mm to 5.5 x 2.5mm adapter support?

The adapter is rated for 240W, so it handles high-power DC connections without overheating.

What are the exact barrel sizes for the male and female ends?

The male plug measures 4.0mm outer diameter by 1.7mm inner pin, while the female jack accepts a 5.5mm outer by 2.5mm inner plug.

How do you connect this adapter without damaging the centre pin?

Align the 1.7mm male pin straight into the device socket before pushing the 5.5mm female end onto the power supply plug; forcing it at an angle bends the centre pin.

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