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Black rectangular power brick with 5.5 x 2.1mm DC plug and screw terminal connector

NShi

NShi 12V 2A AC Adapter 5.5 x 2.1mm 24W

SKU CH-7BXW-AXKA7

Converts 100-240 V AC to 12 V DC at 2 A with a 5.5 × 2.1 mm centre-positive plug, screw terminals for LED strips, and UL-listed short-circuit protection

  • Battery TypeLithium-Ion
  • Worldwide 100-240V input powers devices anywhere
  • UL listed and FCC certified with over-current and short-circuit protection
  • 5 x 2.1mm centre-positive plug fits many 12V devices
  • Screw-terminal connector attaches directly to LED strip wires
  • Compatible with listed Yamaha keyboards and Medela breast pumps

Power adapter for 12V devices

This NShi AC adapter converts 100–240V mains power into a regulated 12V 2A DC output rated at 24W. It is built for equipment that draws up to 2000mA and uses a 5.5 x 2.1mm centre-positive barrel plug. The three-foot lead ends in a screw-terminal block for direct wiring to single-colour LED strip lights.

Connector size and polarity

The critical match is the 5.5mm outer diameter, 2.1mm inner diameter barrel with centre-positive wiring. Devices requiring a different plug geometry or reverse polarity will not connect safely. UL listing and FCC certification confirm compliance with basic electrical safety and emissions standards.

Fits routers, cameras, keyboards and pumps

The screw-terminal output frees you from hunting for a matching barrel jack when powering LED strips or custom wiring. It plugs directly into listed Yamaha keyboards, Polycom phones and Medela breast-pump models. It is not for devices that need more than 2A at 12V or that use a different connector standard.

Highlights

  • Worldwide 100-240V input powers devices anywhere
  • UL listed and FCC certified with over-current and short-circuit protection
  • 5 x 2.1mm centre-positive plug fits many 12V devices
  • Screw-terminal connector attaches directly to LED strip wires
  • Compatible with listed Yamaha keyboards and Medela breast pumps

Specifications

Battery TypeLithium-Ion

Questions about this item

What does the 24 W rating mean for the devices I can run from this adapter?

The adapter delivers up to 24 watts of 12 V DC power, so it can run any device that draws 2 A or less at 12 V — such as routers, CCTV cameras, small hubs, LED strips under 24 W, or compatible Yamaha keyboards and Medela breast pumps.

The barrel plug is listed as 5.5 × 2.1 mm centre-positive; will it fit my device's jack?

Yes — the 5.5 mm outer diameter and 2.1 mm inner pin match the common 12 V barrel standard, and the centre-positive polarity is the typical arrangement for networking gear, cameras, LED strips and the listed keyboards and pumps.

Does the screw-terminal lead let me connect bare LED-strip wires without soldering?

The DC plug includes a screw-terminal block so you can clamp the two lead wires of a single-colour 12 V LED strip directly, no soldering required.

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