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White rectangular wall-mount power adapter with 1.5 m cable and dual 5.5 mm barrel tips

Dell A20124-MG-US 12 V 3 A 36 W power adapter 5.5×2.5 mm & 5.5×2.1 mm 1.5 m cable

SKU CH-P3SS-9GR3E

Delivers 12 V DC at up to 3 A (36 W) from 100–240 V AC, includes a 1.5 m cable with dual 5.5×2.5 mm and 5.5×2.1 mm barrel plugs, and provides UL-listed over-voltage.

  • Type9 V
  • Changer TypeUSB C Charger
  • Cable Length5 in.
  • Specifications36 watts, 12 volts_of_direct_current, 3 amps, 240 volts_of_a
  • Connector APower Supply
  • Connector BPower Supply
  • Delivers stable 12 V DC at up to 3 A for reliable device operation
  • Wide 100–240 V AC input with 50–60 Hz range suits global mains supplies
  • Dual-fit 5.5×2.5 mm and 5.5×2.1 mm barrel plugs cover more equipment
  • 5 m cable length gives flexible placement away from wall sockets
  • UL certified with over-voltage, over-current and over-temperature protection for safe use

Dell A20124-MG-US 12 V 36 W adapter

The Dell A20124-MG-US is a 12 V 36 W AC to DC power adapter delivering 3 A of regulated current. It accepts a universal 100-240 V input at 50-60 Hz for worldwide use. The unit includes a 1.5 m cable fitted with a reversible 5.5×2.5 mm and 5.5×2.1 mm barrel connector.

Suits 12 V devices up to 3 A only

This adapter powers routers, monitors, LED strips, CCTV cameras and similar 12 V equipment rated at 36 W or less. It cannot supply higher current loads or voltages other than 12 V. Buyers needing more than 3 A or a different output voltage must choose another unit.

Dual 5.5 mm barrel fits two jack sizes

The single plug terminates in a standard 5.5×2.5 mm tip that also mates with 5.5×2.1 mm sockets via the inner centre spring contact. Polarity is centre positive and sleeve negative. Verify your device jack before purchase.

Highlights

  • Delivers stable 12 V DC at up to 3 A for reliable device operation
  • Wide 100–240 V AC input with 50–60 Hz range suits global mains supplies
  • Dual-fit 5.5×2.5 mm and 5.5×2.1 mm barrel plugs cover more equipment
  • 5 m cable length gives flexible placement away from wall sockets
  • UL certified with over-voltage, over-current and over-temperature protection for safe use

Specifications

BrandDell
SeriesA20124-MG-US
ModelA20124-MG-US
Part NumberA20124-MG-US
Type9 V
Changer TypeUSB C Charger
Cable Length5 in.
Specifications36 watts, 12 volts_of_direct_current, 3 amps, 240 volts_of_alternating_current, Power Supply, 50-60Hz, type_a_2pin_na, 1, Audio Amp Boards, Portable Powered Speakers, LED Light Strips, LCD Monitors, Wireless Routers, CCTV Cameras, DC Motors, 3D Printers, Computer Projects, HUB, Switches, Audio/Video Power Supply, Arduino Controllers, A20124-MG-US
Connector APower Supply
Connector BPower Supply
Cable Jakcet TypePlastic
Connector StyleMale
FeaturesAudio Amp Boards, Portable Powered Speakers, LED Light Strips, LCD Monitors, Wireless Routers, CCTV Cameras, DC Motors, 3D Printers, Computer Projects, HUB, Switches, Audio/Video Power Supply, Arduino Controllers, Power Supply, Corded Electric, 1, AC to DC, 36 watts
Dimensions14.33in W x 12.83in H x 9.06in D
Package Quantity0
Package Contents0
Disclaimer1 year, not_applicable

Questions about this item

What voltage and current must the device I want to power already require for this adapter to work?

The device must need exactly 12 V DC and draw no more than 3 A, keeping total power at or below 36 W.

Will the included plug fit the 5.5 × 2.1 mm barrel jack on my older router?

Yes, the cable terminates in a 5.5 × 2.5 mm plug that also mates with a 5.5 × 2.1 mm socket thanks to the inner spring contact.

How can I confirm the adapter is delivering stable power after I plug it in?

The regulated 12 V output with low ripple means your device should power on cleanly without voltage dips or interference.

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