How to Boot Raspberry Pi 4 / 400 From an SSD or Flash Drive

A firmware update lets you use any USB device to boot a Raspberry Pi 4 / 400.

boot_usb_rpi_only [Batocera.linux - Wiki]

Raspberry Pi 400 SSD Upgrade - Raspberry Pi Spy

Home Assistant & Raspberry Pi 4: How to Get Started

Raspberry Pi 4 – SD to SSD – gr33nonline

Directly boot your Raspberry PI 4 from a USB drive - PragmaticLinux

Techno Hub: How to Use a USB SSD or Flash Drive to Boot a Raspberry Pi 4 / Pi 400

How to Use a USB SSD or Flash Drive to Boot a Raspberry Pi 4 / Pi 400 : r/RASPBERRY_PI_PROJECTS

Raspberry Pi Documentation - Raspberry Pi 5

SSD to USB 3.0 Cable for Raspberry Pi

Three Different Ways to Boot a Raspberry Pi From a USB Drive: - The Sec Master

Raspberry Pi 4 With an SSD: Dramatic Speed Improvements, Higher Price

How to Set up Dual Boot on Raspberry Pi 4 Using BerryBoot