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Black rectangular power brick with barrel connector and detachable AC cord

Dell 12V 3A 36W Power Adapter 5.5x2.5mm Barrel Connector

SKU CH-8HC7-4J1KT

Delivers 12 V DC at up to 3 A (36 W) via a 5.5 × 2.5 mm barrel plug for LED strips, CCTV cameras or monitors

  • Type9 V
  • Changer TypeUSB C Charger
  • ColorBlack
  • Cable Length5 in.
  • Specifications36 watts, 12 volts_of_direct_current, 3 amps, 110 volts_of_a
  • Connector ABarrel Connector
  • Universal 100–240 V input powers the adapter worldwide
  • 12 V 3 A output delivers up to 36 W for compatible devices
  • 5 × 2.5 mm barrel plug fits 5.5 × 2.1 mm jacks with fixed inner-positive polarity
  • Built-in short-circuit, overload and over-voltage protection safeguards connected equipment
  • 6 ft AC cord and 3.1 ft DC cable give flexible placement options

Dell 12V 3A Power Adapter

This Dell adapter converts AC mains power into a regulated 12 V DC supply rated at 3 A and 36 W. It is intended for devices that require a 5.5 mm × 2.5 mm barrel plug with inner-positive polarity. The unit accepts a worldwide input range of 100–240 V at 50/60 Hz, making it suitable for travel or fixed installations. It ships new with a detachable AC cord and a fixed DC lead.

36 W capacity and headroom

The adapter delivers up to 36 W continuously, so it comfortably powers LED strips such as 5050 or 3528 types, CCTV cameras, small LCD monitors, DVR boxes and similar loads that draw 3 A or less. Because amperage is not forced, it safely replaces older 1 A, 1.5 A, 2 A or 2.5 A units without risk of over-current. It runs out of headroom when the connected load exceeds the 36 W maximum, at which point the overload protection will shut the output down. The total appliance wattage must stay below this limit.

Barrel connector practical limits

The 5.5 mm × 2.5 mm barrel jack is the sole output interface; polarity is fixed with inner positive and outer negative and cannot be reversed. A 5.5 mm × 2.1 mm plug will physically mate but may not maintain reliable contact, so the correct jack size is required. The DC cable length is 94 cm and the AC cord is 120 cm, limiting placement distance from the mains socket and the powered device. No other connector types or voltage selections are provided.

Highlights

  • Universal 100–240 V input powers the adapter worldwide
  • 12 V 3 A output delivers up to 36 W for compatible devices
  • 5 × 2.5 mm barrel plug fits 5.5 × 2.1 mm jacks with fixed inner-positive polarity
  • Built-in short-circuit, overload and over-voltage protection safeguards connected equipment
  • 6 ft AC cord and 3.1 ft DC cable give flexible placement options

Specifications

BrandDell
Type9 V
Changer TypeUSB C Charger
ColorBlack
Cable Length5 in.
Specifications36 watts, 12 volts_of_direct_current, 3 amps, 110 volts_of_alternating_current, Barrel Connector, 60 hertz, type_b_3pin_na, 0, CCTV Cameras
Connector ABarrel Connector
Connector BBarrel Connector
Cable Jakcet TypePlastic
Connector StyleMale
FeaturesCCTV Cameras, Barrel Connector, Corded Electric, 0, 36 watts
Dimensions14.33in W x 12.83in H x 9.06in D
Weight3 grams
Package Quantity1
Package Contents1
Disclaimer2 Years Warranty, not_applicable

Questions about this item

Will the 5.5 x 2.5 mm barrel plug work with my existing 5.5 x 2.1 mm jack devices?

Yes, the 5.5 mm x 2.5 mm barrel connector is compatible with 5.5 mm x 2.1 mm jack sizes, so it fits the older hardware you are keeping.

How can I confirm the adapter is delivering the correct 12 V DC output after I connect it?

Measure the DC plug with a multimeter; you should read 12 V with the inner contact positive and the outer contact negative as marked on the adapter label.

Does the package include both the AC mains lead and the DC output cable, or do I need to buy a cord separately?

The box contains the 12 V 3 A power adapter with a 120 cm AC cord and a 94 cm DC cable already attached; no extra cables are required.

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