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Black USB-C power adapter with captive 1.5m cable and US plug

Raspberry Pi

Raspberry Pi KSA-15E-051300HU 5.1V 3A USB-C power adapter 1.5m 18AWG black

SKU CH-WP42-KVHJM MPN KSA-15E-051300HU

Official Raspberry Pi 4B power supply delivering 5.1V 3A via 1.5m 18AWG USB-C cable with short-circuit, over-current and over-temperature protection

  • ColorBlack
  • Official 5.1V 3A output keeps Pi 4B stable at full load
  • 5 m 18 AWG captive USB-C cable reaches your desk easily
  • 100-240V AC input with Canada/US plug works worldwide
  • circuit, over-current and over-temperature protection guards hardware
  • 3W supply stays in production until at least January 2026

Official Raspberry Pi 4B power supply

This official 15.3 W USB-C adapter delivers a regulated 5.1 V at 3.0 A, matching the Raspberry Pi 4 Model B specification released in June 2019. The captive 1.5 m 18 AWG cable terminates in a USB-C connector and includes short-circuit, over-current and over-temperature protection. It is intended for builders who need guaranteed stability when the board drives multiple USB peripherals or HATs at full load.

Input range and cable constraints

The unit accepts 96-264 V AC at 50/60 Hz, making it suitable for worldwide travel when paired with the appropriate plug adapter for the Canada/US pins supplied. The fixed 1.5 m cable length cannot be extended without adding resistance that may drop voltage below the 5.1 V target under 3 A load. Builds that require a longer reach or a detachable cable will need a different solution.

Upgrade from generic 5 V 3 A adapters

Generic 5 V 3 A chargers often sag under heavy Pi 4B loads, causing throttling or instability; the 5.1 V output here provides headroom for the board's on-board regulator and connected devices. The jump is worth it when the Pi 4B runs storage, networking or multiple HATs continuously. It does not address builds that need Power Delivery negotiation, higher voltages or a detachable cable for cable-management flexibility.

Highlights

  • Official 5.1V 3A output keeps Pi 4B stable at full load
  • 5 m 18 AWG captive USB-C cable reaches your desk easily
  • 100-240V AC input with Canada/US plug works worldwide
  • circuit, over-current and over-temperature protection guards hardware
  • 3W supply stays in production until at least January 2026

Specifications

ColorBlack

Questions about this item

Should I pick the 5.1V 3A version or a standard 5V 3A adapter for my Raspberry Pi 4B?

Choose the 5.1V 3A model; the slightly higher voltage compensates for cable drop so the board receives a stable 5V even under full load.

What does the 15.3W rating mean when the supply is running a Pi 4B with several peripherals?

It delivers up to 3A continuously at 5.1V, giving enough headroom for the board plus attached USB devices without voltage sag.

The captive cable is 1.5m 18AWG with a USB-C plug — does that limit the current I can draw?

The 18AWG cable is rated for the full 3A output, so the 1.5m length will not restrict the 5.1V 3A supply to the board.

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