This maker uses the Raspberry Pi Compute Module 4 as a base for this custom NAS PCB project.
The Raspberry Pi Compute Module 4 Review
Raspberry Pi Compute Module NAS : 5 Steps - Instructables
New Raspberry Pi 4 Compute Module: So Long SO-DIMM, Hello PCIe!
A list of Raspberry Pi Compute Module carrier boards and devices – after hours coding
Raspberry Pi Compute Module 4 on sale now from $25 - Raspberry Pi
DIY Raspberry Pi Compute Module 4 NAS supports up to four drives - CNX Software
Raspberry Pi Compute Module NAS : 5 Steps - Instructables
Building the fastest Raspberry Pi NAS, with SATA RAID
Waveshare Compute Module 4 IO Board with PoE Feature, Compatible with Raspberry Pi, Suitable for All Variants of CM4 : Electronics
Thinking About Making Your Own Raspberry Pi Compute Module Carrier Board?, by Alasdair Allan
Radxa Taco Turns a Raspberry Pi Compute Module 4 Into a NAS
Raspberry Pi Compute Module 4 PoE IO Board
Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini - DFRobot
What is the Raspberry Pi Compute Module 4 (CM4)?