Raspberry Pi 5 Power Supply - 27W USB-C

High-Performance Power Delivery for Raspberry Pi 5

The Official Raspberry Pi 27W USB-C Power Supply is engineered specifically to meet the rigorous thermal and computational power demands of the flagship Raspberry Pi 5 single-board computer. Driven by the complex power management requirements of the RP1 I/O controller and the Broadcom BCM2712 SoC, standard 5V USB power supplies fall short. This custom-designed power adapter delivers a continuous 5.1V output at up to 5A, unlocking the complete current-budgeting subsystem of the Raspberry Pi 5. By delivering a clean 5.1V rail at 5A, the onboard Power Management IC (PMIC) automatically allocates a full 1.6A total combined current across its four downstream USB Type-A ports. This represents a massive performance bump over standard 3A power supplies, which enforce a strict 600mA USB current throttle to prevent system instability.

Versatile USB Power Delivery (USB-PD) Profiles

Beyond its specialized high-current output profile for single-board computing, this 27W adapter features universal USB Power Delivery (USB-PD) negotiation capabilities. Integrated PD controller logic supports standard high-efficiency voltage profiles, including 9V at 3A, 12V at 2.25A, and 15V at 1.8A up to a peak limit of 27W. The board leverages custom vendor-defined messaging via the USB-C Configuration Channel (CC) lines to negotiate the non-standard 5.1V at 5A profile safely. When connected to secondary devices, it functions as a universal high-efficiency power charger for fast-charging modern smartphones, power banks, handheld gaming systems, microcontrollers, and third-party PD-compatible electronics.

Low Voltage-Drop 17AWG Cable Construction

To guarantee maximum operational efficiency and prevent dangerous brownout events during heavy computational loads, the adapter is equipped with a fixed 1.2-meter captive cable constructed with thick 17AWG oxygen-free copper wiring. Standard thin USB cables suffer from severe IR voltage drop when conducting high currents, which frequently drops the voltage below the 4.63V threshold and triggers software low-voltage warnings or unexpected kernel panics. The heavy-gauge 17AWG wire minimizes series resistance across the line, maintaining a rock-steady 5.1V potential directly at the USB-C terminal even under full 5A transients.

Expanded Application and Peripheral Support

Utilizing the Official 27W USB-C Power Supply eliminates hardware bottlenecks when populating high-draw add-on hardware directly on the Raspberry Pi 5 board. It provides expansive power headroom for running demanding expansion options, including PCIe Gen 2.0 and 3.0 NVMe M.2 SSD HATs, bus-powered 2.5-inch external hard drives, high-resolution dual-camera setups, active cooling fan units, matrix LED displays, and local AI accelerator modules like the Hailo-8L NPU without requiring an external powered USB hub.

Global Compatibility and Universal Input Protection

Designed for seamless deployment across industrial, commercial, and maker environments worldwide, the power supply accepts a wide AC input voltage range from 100V to 240V AC at 50/60Hz. The internal flyback converter design features dynamic primary-side sensing with integrated overvoltage protection (OVP), overcurrent protection (OCP), short-circuit protection (SCP), and thermal shutdown (OTP). It complies with strict international electromagnetic compatibility (EMC) standards and meets DOE Level VI energy efficiency standards with near-zero standby power draw.