GeeekPi 18W 5V 3.6A Power Supply for Raspberry… vs Argon ONE M.2 SATA Expansion Board for Raspberry… — Head-to-Head (2026)

Our verdict

Argon ONE M.2 SATA Expansion Board for Raspberry… is our pick.

For a Raspberry Pi 4 owner who already has an Argon ONE V2 case, the Argon ONE M.2 SATA board is the better buy — moving the root filesystem off microSD to an M.2 SATA SSD over USB 3.0 with UASP is the largest single responsiveness upgrade the Pi 4 platform accepts, and no power supply can match it.

Buy the GeeekPi 18W 5V 3.6A Power Supply if you are seeing the undervoltage lightning bolt on your Pi 4 or Orange Pi 5/5B, are powering USB peripherals off the board, or need an inline ON/OFF switch on a headless node — 18W and 3.6A of headroom is the cheapest stability fix on the platform. Buy the Argon ONE M.2 SATA Expansion Board if you already own an Argon ONE V2 case and are still booting from microSD — it converts the Pi 4 into a USB 3.0 UASP SSD machine and eliminates the platform's worst bottleneck.

SpecPicks editorial verdict, written June 9, 2026. Prices move, so check the current price on each listing before you buy.