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5V@4A USB Power Adapter (US Standard)

$7.50
SKU: FIT0618
5V power adapter provides 4000mA current, compatible with Arduino, Raspberry Pi, and other Micro USB boards. Includes DC2.1 to Micro USB adapter.
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Introduction

DC5.5×2.1 Power Adapter – 5V 4A provides a stable external power solution for development boards, robotics electronics, and embedded control systems requiring higher current than typical USB sources. Delivering up to 4000mA continuous output, this regulated 5V AC‑to‑DC power supply supports demanding loads such as motors, servos, and multi‑module prototypes. The DC5.5×2.1 connector matches common controller power ports including Arduino boards, while the included adapter enables Micro USB power delivery for platforms such as Raspberry Pi 3B and other Micro USB interface development boards.


High‑Current 5V Output for Demanding Projects

This regulated 5V power supply delivers up to 4A continuous current, providing significantly more power than standard USB ports. High‑current capability supports motor drivers, servo arrays, robotics modules, and multi‑sensor systems without voltage drops. Stable power delivery helps maintain reliable operation in embedded prototypes, automation systems, and electronics development environments where consistent voltage and current capacity remain critical.


Wide AC Input with Reliable Regulation

A universal 100–240V AC input design enables operation across global power standards. Internal regulation circuitry converts mains power into stable 5V DC output suitable for microcontroller platforms, embedded computers, and digital electronics. Consistent voltage regulation helps prevent instability, brownouts, and overheating risks commonly associated with incorrect or overloaded power sources in electronics development setups.


Dual Output Compatibility for Development Boards

The adapter features a DC5.5×2.1 output connector widely used across development boards and controller platforms. An included DC2.1‑to‑Micro‑USB converter expands compatibility with Micro USB powered boards and SBCs. This flexible power accessory therefore functions as a convenient external supply for controller boards, SBC prototypes, robotics controllers, and embedded systems requiring dependable 5V input.


Suitable for robotics prototypes, controller development platforms, and embedded electronics requiring reliable external power. This 5V high‑current adapter supports motor‑driven systems, servo mechanisms, and computing boards used in maker projects, lab testing environments, and STEM learning setups. Flexible connector options enable convenient power delivery for development boards and Micro USB powered devices.

Features

  • Stable 5V DC regulated output with up to 4A continuous current
  • DC5.5×2.1 connector compatible with many development boards
  • Includes DC2.1 to Micro USB adapter for Micro USB powered devices
  • Universal 100–240V AC input suitable for global power standards
  • Reliable external power source for motors, servos, and embedded systems

Applications

  • Microcontroller development boards
  • Raspberry Pi power supply
  • Robotics and servo systems
  • Embedded electronics prototypes
  • STEM education laboratory projects

Specification

  • Input Voltage: 100-240V AC
  • Output Interface: DC5.5*2.1/Micro USB
  • Output Voltage: 5V
  • Output Current: 4A

Shipping List

  • DC5.5*2.1 Power Adapter -5V 4A x1
  • DC2.1 to Micro USB Connector x1

Resource

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Review

Luis Eduardo.Camayo Sep 23, 2025

Great product 5V@4A USB Power Adapter (US Standard)

5V@4A USB Power Adapter (US Standard)
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