There are two solutions how to add a SSD disk to a Turris Omnia board.

1. Using mSATA SSD
2. Using SATA SSD with a miniPCI SSD adapter

I tried to use m.2 SSD with an adapter m.2-miniPCI, but the Omnia board didn't recognize it.

This is the simplest solution. You need just the mSata SSD.

SSD disk Kingston KC600 512GB mSATA

This solution allows using up to 2 SATA disks.

You need:

1. Mini PCIe 2xSATA 6 Gb/s
2. Power cable for the disk
3. Disks (SSD or HDD)

Delock 95260 - Mini PCIe I/O PCIe half size 2 x SATA 6 Gb/s

Delock 95233 - Mini PCIe I/O PCIe full size 2 x SATA 6 Gb/s

Power Supply Cable for SATA disks can be connected to the Turris Omnia board and it's not a standard one. It consists of five wires.

Power cable pinout on the board

Cable discussions in Turris Forum:

• https://forum.turris.cz/t/pci-sata-controller-hdds-wont-spin/4296
• https://forum.turris.cz/t/hdd-power-cable/1370/5

Cable images

Power Supply Connector on Turris Omnia board.

Shop

https://www.moddiy.com/products/2.54mm-5%252dPin-Female-to-2x-SATA-%252b-3%252dPin-Fan-Power-Cable-Adapter.html