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Black 12V 2.5A 30W wall adapter with 5.5mm barrel plug and blue LED

MTDZKJG MT-120205 12V 2.5A 30W power adapter

SKU CH-E331-GJ364

Converts 100-240V AC to 12V DC at 2.5A with a 5.5mm barrel connector and built-in safety protections

  • Type12 V
  • ColorBlack
  • Specifications30 watts, 12 volts, 2.5 amps, 240 volts, Barrel Connector, 5
  • Connector ABarrel Connector
  • Connector BBarrel Connector
  • Cable Jakcet TypePlastic
  • Worldwide voltage input 100V to 240V AC
  • 30W maximum output powers 12V devices up to 2.5A
  • 5mm barrel plug fits both 2.5mm and 2.1mm centres
  • Built-in overcurrent, overvoltage, overload and short-circuit protection
  • Blue LED shows power is on and cable uses 20AWG copper conductors

What this adapter powers

The MTDZKJG MT-120205 is a 12V 2.5A switching power supply rated at 30W maximum output. It accepts AC 100-240V input at 50/60Hz and delivers DC 12V through a 5.5mm x 2.5mm barrel connector that also fits 2.1mm inner diameter plugs. Polarity is centre positive. The unit includes a blue indicator light and a 95cm cord built with 20AWG copper conductors in a flame-retardant PVC jacket. It carries FCC, CE, RoHS and CCC certification with overcurrent, overvoltage, overload and short-circuit protection.

Check your device before ordering

Verify that your equipment requires exactly 12V DC and draws no more than 2.5A. Confirm the barrel jack on your device accepts a 5.5mm outer diameter and either 2.5mm or 2.1mm inner diameter with centre-positive polarity. The adapter is designed for indoor use with CCTV cameras, DVR, NVR, HVR recorders, LED strip lights, small fountain pumps and similar low-power 12V loads. Do not connect if your device needs a different voltage, higher current or reverse polarity.

Replacing an undersized or failed supply

This adapter replaces any 12V wall transformer rated up to 30W with a compatible barrel connector. It is a direct swap for 12V units rated at 0.1A through 2.5A such as 500mA, 1A, 1.5A, 2A or 2.5A models. The jump is worth it when the original supply has failed, runs hot or cannot deliver enough current for the connected load. It is not suitable for devices requiring 15V output, currents above 2.5A or power levels above 30W such as 36W, 42W, 45W or 48W units.

Highlights

  • Worldwide voltage input 100V to 240V AC
  • 30W maximum output powers 12V devices up to 2.5A
  • 5mm barrel plug fits both 2.5mm and 2.1mm centres
  • Built-in overcurrent, overvoltage, overload and short-circuit protection
  • Blue LED shows power is on and cable uses 20AWG copper conductors

Specifications

BrandMTDZKJG
SeriesMT-120205
ModelMT-120205
Part NumberMT-120205
Type12 V
ColorBlack
Specifications30 watts, 12 volts, 2.5 amps, 240 volts, Barrel Connector, 50-60 Hz, type_b_3pin_na, 0, Speakers, MT-120205
Connector ABarrel Connector
Connector BBarrel Connector
Cable Jakcet TypePlastic
Connector StyleBarrel Connector
Apple CompatibleBarrel Connector
FeaturesSpeakers, Barrel Connector, Corded Electric, 0, DC, 30 watts
Dimensions72"
Package Quantity1
Package Contents1
Disclaimernot_applicable

Questions about this item

Does the box include both the 5.5 mm × 2.5 mm and 5.5 mm × 2.1 mm barrel plugs, or must I buy a separate tip?

The adapter ships with a single universal DC plug that accepts both 5.5 mm × 2.5 mm and 5.5 mm × 2.1 mm inner diameters, so no extra tip is required.

My device needs 12 V at 2 A — will the 2.5 A version work safely?

Yes, the supply delivers up to 2.5 A at 12 V; a device drawing 2 A will only take what it needs, and the built-in over-current, over-voltage and short-circuit protections keep operation safe.

What does the 30 W rating mean when the adapter is powering a 12 V LED strip?

30 W is the maximum continuous output (12 V × 2.5 A); a strip drawing less than that will run within the adapter's thermal limits and the blue indicator will show normal operation.

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