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Black rectangular power brick with round barrel connector and detachable cord

ABLEGRID

ABLEGRID 120W AC Adapter for WD My Cloud PR4100

SKU CH-AS5S-RVAVF

A 120W AC adapter with 100-240V input, 50-60Hz frequency, and round tip connector for WD My Cloud PR4100 NAS power supply

  • Adapter typeAC Adapter
  • 120 W output powers the WD My Cloud PR4100 NAS reliably
  • 100–240 V input works worldwide without a voltage switch
  • Over-voltage and over-heat protection guards connected equipment
  • Round-tip connector matches the original power supply exactly
  • Includes a free AC cord for immediate setup

Compatible 120W AC adapter for WD My Cloud PR4100

This ABLEGRID power supply delivers 120W of DC output to the WD My Cloud PR4100 Pro Series NAS. It accepts a worldwide AC input range of 100-240V at 50-60Hz and includes a round-tip connector. Over-voltage and over-heat protection are built in. A free power cord is supplied in the package.

Sustained-load behaviour with protection circuits

The adapter maintains a steady DC output during continuous NAS operation. Over-voltage protection clamps excess input spikes, while over-heat protection reduces risk during extended uptime. The unit is designed for 100% compatibility with the original power requirements. Keep the adapter in a ventilated area and avoid placing it on soft surfaces during long sessions.

Pre-order checklist for your NAS setup

Verify that your WD My Cloud PR4100 requires a 120W DC input with a round-tip connector before ordering. Confirm the tip size matches the original adapter exactly. Ensure your mains supply falls within the 100-240V AC range at 50-60Hz. This adapter is not suitable for devices needing a different wattage, voltage, or connector type.

How it compares

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

Price $22.99
Pricier than about 65% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Brand nameABLEGRID
Adapter typeAC Adapter

Questions about this item

Does the 120W ABLEGRID adapter run hot when powering a PR4100 all day?

The unit includes over-heat protection and the supplier advises keeping it in a well-ventilated area during extended use.

What must I already own to use this adapter with my PR4100?

You need the WD My Cloud PR4100 Pro Series NAS itself; the package supplies the adapter and a mains cord.

Will this power supply work with an older WD My Cloud model I still have?

It is built for 100 % compatibility with the PR4100 Pro Series; verify the DC output and round tip size match your other unit before connecting.

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