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Compact black rectangular AC adapter with 5.5mm barrel plug and interchangeable 2.5mm tip

Kenuco

Kenuco 12V 3A Power Adapter 5.5mm x 2.5mm/2.1mm

SKU CH-5YHA-ZKGSE

Delivers 12 V at up to 3 A through a 5.5 mm × 2.5 mm plug that also fits 2.1 mm sockets

  • TypeAC Adapter
  • Delivers up to 36 W for 12 V devices
  • Accepts AC 100-240 V input worldwide
  • Includes 5.5 mm × 2.5 mm plug compatible with 2.1 mm jacks
  • Centre-positive polarity matches most 12 V equipment
  • Supports loads from 500 mA to 3 A

Power adapter for 12 V DC devices

This Kenuco AC adapter converts 100 V to 240 V mains input into a regulated 12 V DC output rated at up to 3 A. It delivers a maximum of 36 W and is designed for hardware that draws between 0 A and 3 A from a 5.5 mm barrel connector.

Dual-size tip and polarity lock

The plug measures 5.5 mm by 2.5 mm and also fits 5.5 mm by 2.1 mm sockets, covering two common barrel sizes in one unit. Polarity is fixed as inner positive and outer negative, so the connected device must match that arrangement.

Suits routers, LED strips.

Buyers powering compatible networking gear, lighting, audio or surveillance equipment within the 36 W limit will find a direct fit. Devices that need a different voltage, higher current, another connector type or reversed polarity cannot use this adapter.

Highlights

  • Delivers up to 36 W for 12 V devices
  • Accepts AC 100-240 V input worldwide
  • Includes 5.5 mm × 2.5 mm plug compatible with 2.1 mm jacks
  • Centre-positive polarity matches most 12 V equipment
  • Supports loads from 500 mA to 3 A

Specifications

TypeAC Adapter

Questions about this item

Will the 5.5 mm x 2.5 mm barrel connector wear out and need replacement over time?

The barrel connector is a passive metal interface with no moving parts; it does not wear out under normal insertion cycles and requires no scheduled replacement.

What limit appears first when the adapter runs continuously at the 36 W maximum rating?

The supplier advises staying below 80 % of the rated 36 W for long-duration use, so thermal headroom is the first practical limit under sustained load.

How much heat or fan noise should I expect when the unit powers a 12 V 3 A load all day?

The adapter has no fan and relies on passive convection; it will become warm but remains silent during continuous operation.

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