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Ten small right-angle DC adapters, black plastic with metal tips

eForChina

eForChina 4.5x3.0mm to 4.0x1.7mm Elbow Adapter 10 pcs

SKU CH-1QRQ-2M145

Ten elbow adapters convert a 4.5 x 3.0 mm female jack to a 4.0 x 1.7 mm male plug for notebook power connections

  • Adapter typePower Adapter
  • Converts 4.5x3.0mm ports to 4.0x1.7mm plugs
  • Elbow design eases strain in tight laptop spaces
  • Compact 30x33mm body fits in any gear bag
  • PC and metal construction resists daily wear
  • Pack of 10 covers multiple devices or spares

10-Pack DC Elbow Adapter

This pack contains ten elbow-style DC power adapters that convert a 4.5 x 3.0 mm female jack to a 4.0 x 1.7 mm male plug. They are designed for notebook power connections where the original plug size does not match the device input. The compact form factor makes them easy to store in a laptop bag or toolkit.

4.5 mm to 4.0 mm Conversion

The critical specification is the connector conversion: a 4.5 mm outer diameter by 3.0 mm inner diameter female socket accepts the power brick, while a 4.0 mm by 1.7 mm male pin fits the laptop. If your charger or device uses different dimensions, these adapters will not create a secure electrical contact.

For Mismatched Barrel Connectors

These suit users who need to connect a 4.5 x 3.0 mm charger tip to a 4.0 x 1.7 mm laptop port without replacing the entire power supply. They are not for buyers who require a straight-through coupler, a different pin polarity, or adapters for USB-C, proprietary multi-pin, or coaxial RF power interfaces.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 67% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePower Adapter

Questions about this item

What does the 4.5 x 3.0mm female side mean for my laptop power port?

It matches the barrel jack on many notebooks that use a 4.5 mm outer and 3.0 mm inner diameter, letting you plug the original charger into the adapter.

The connector is a DC converter plug — what voltage or current does that standard limit in practice?

The adapter itself carries no voltage or current rating; it simply passes whatever the connected power supply provides within the physical limits of the 4.0 x 1.7 mm male tip.

The elbow body measures about 30 x 33 mm — will it clear the side of a thin ultrabook?

At roughly 30 by 33 mm the right-angle housing adds minimal bulk, so it typically fits alongside slim laptop chassis without blocking adjacent ports.

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