Replacement UK Power Adaptor for WDMyBook

Western Digital’s WD My Book external hard drives are reliable, high-capacity storage solutions widely used for backing up data, storing media libraries, or archiving important files. Like any external device, the power adapter plays a crucial role in ensuring consistent and safe operation. If your WD My Book has stopped powering on, one of the most common culprits is a faulty power adapter—and finding the right replacement, especially in the UK, is essential.

Why Power Adapters Fail

Over time, power adapters can fail due to:

Electrical surges or power cuts

Overheating or prolonged use

Physical damage to the plug or cable

Internal component wear (capacitors, regulators, etc.)

In the UK, where mains voltage is 230V at 50Hz, using an incompatible adapter may not only prevent your drive from working but also pose a risk of damage.

Identifying the Correct WD My Book Power Adapter

Before purchasing a replacement, you need to identify the exact specifications required for your model. Most WD My Book units use a 12V DC power adapter, but the current (amperage) and barrel connector size can vary.

Here’s what to check:

Voltage: Usually 12V

Amperage: Commonly between 1.5A to 2.5A (check the label on the drive or the old adapter)

Polarity: WD drives typically require center-positive plugs

Barrel Connector Size: Often 5.5mm outer / 2.1mm or 2.5mm inner diameter

Some older or larger My Book models may use 18V or 19V adapters, so always verify the input rating printed near the power port or on the original adapter.

Where to Buy a Replacement Adapter in the UK

You can find compatible UK replacement power adapters from:

Amazon UK

eBay UK (look for genuine or well-reviewed third-party sellers)

Specialist electronics stores like CPC Farnell, Maplin, or RS Components

WD Official Support (if your drive is still under warranty)

Ensure that the plug is UK standard (Type G) and that the adapter supports 230V input.

Tips When Buying a Replacement

Avoid cheap, generic adapters without CE certification—they may cause electrical issues or damage your drive.

Look for “WD My Book compatible” in the product listing.

If unsure about the size of the plug tip, buy an adapter with interchangeable tips.

Keep the receipt and confirm return policy in case the plug doesn’t fit or isn’t compatible.

What to Do After Replacement

Once your new adapter arrives:

Confirm voltage and polarity match the original.

Plug it into your WD My Book.

Listen/feel for drive spin-up or check LED indicators.

Connect the USB cable to your PC and verify functionality.

If the drive still doesn’t power on, the issue may lie with the internal hardware or logic board rather than the adapter.

Conclusion

Replacing a WD My Book UK power adapter is simple if you know the correct specifications. Always double-check voltage, amperage, and plug size before buying. Using a reliable, properly rated replacement ensures the safety of your data and prolongs the life of your external drive.