My recently finished PI 4 NAS (details in comments) : r/raspberry_pi

How to build a Raspberry Pi NAS - Raspberry Pi

Build a Raspberry Pi NAS — The MagPi magazine

Raspberry Pi 4 as a Nas: How to Reach the 110 MB/s Read and Write Performance :: Michael Eiler — sharing bits about software and technology

TerraPi Raspberry Pi SSD Case / RPi NAS Server Case with Fan Mount

Turn a Raspberry Pi into a NAS (Network Attached Storage) Server

Build a Raspberry Pi NAS they said. It will be easy

Build your own Raspberry Pi NAS Server - Pi My Life Up

Raspberry Pi 4 Model B Aluminum Brick NAS Case Black Enlosure Shell with 4010 Ice Tower Cooling Fan M.2 SATA SSD for RPI 4B - AliExpress

NAS Multi-functional Mini-Computer Designed for CM4, Network Storage, Dual Solid State Drive slots

Waveshare NAS All-In-One Mini-Computer for RPi CM4 w/o CM4104008 (US) - RobotShop