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Black AC DC power adapter with barrel tip connector

ABLEGRID

ABLEGRID AC DC Adapter for Seagate ST300003U2 12V Charger

SKU CH-84NG-CMQJ3

Replacement AC/DC power adapter delivering 12 V DC via barrel tip for the Seagate ST300003U2 external hard drive, accepting 100-240 V AC input at 50-60 Hz with over-voltage and over-heat protection

  • Battery TypeUPS
  • Worldwide 100-240 V input works in any region
  • 12 V DC barrel-tip output matches the Seagate ST300003U2 drive
  • Over-voltage and over-heat protection guards connected equipment
  • CE, FCC and RoHS certified for regulatory compliance
  • 755 % compatibility claim backs reliable non-OEM replacement

Replacement Adapter for Seagate ST300003U2

The ABLEGRID AC DC adapter supplies 12 V DC power to the Seagate ST300003U2 external hard drive. It accepts a worldwide AC input of 100-240 V at 50-60 Hz and uses a barrel tip connector. The unit includes over voltage and over heat protection and is CE/FCC/RoHS certified.

Suitable for owners of the specific Seagate model

This adapter matches the original voltage and connector for the ST300003U2 drive. Buyers who need a different output voltage, a different tip size, or a power supply for another drive model should look elsewhere. It is a non-OEM replacement intended for direct substitution.

Steady output during extended use

Over voltage and over heat protection circuits engage if the adapter runs for long periods or under continuous load. The supplier advises keeping the unit in a ventilated area and not placing it on soft surfaces. The protections are designed to maintain stable operation without thermal shutdown during sustained operation.

Highlights

  • Worldwide 100-240 V input works in any region
  • 12 V DC barrel-tip output matches the Seagate ST300003U2 drive
  • Over-voltage and over-heat protection guards connected equipment
  • CE, FCC and RoHS certified for regulatory compliance
  • 755 % compatibility claim backs reliable non-OEM replacement

Specifications

BrandABLEGRID
Battery TypeUPS

Questions about this item

Which hard drive must I already own so this 12 V adapter will power it correctly?

The adapter is built for the Seagate ST300003U2 external hard drive; the barrel tip and 12 VDC output must match that drive's power port.

Can I keep using my older AC mains cable with this adapter's 100-240 V input range?

Yes, the adapter accepts worldwide AC input from 100 to 240 V at 50-60 Hz, so any standard IEC mains lead you already have will work.

How do I verify the adapter is delivering power properly once connected?

The drive should spin up and be recognised by the operating system; the adapter includes over-voltage and over-heat protection that will shut it down if a fault occurs.

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