How do I add more SATA slots? PCI-E to SATA?

[Psycho Sonny]

I have this motherboard

https://www.asus.com/uk/Motherboards/ROG-STRIX-B350-F-GAMING/overview/

I can only use 4 of the ports with a NVME drive.

So I want to add more slots preferably 6 but 4 will do.

Whats the best value for money way of doing this? I'm looking at PCI-E to SATA cards but they seem very dear for what is a basic thing.

 

[Psycho Sonny]

How many drives do you have?!

I have currently 3 mechanical and 1 ssd and the nvme.

I want to remove 1 mechanical, add another 3 mechanical and possibly another 2 mechanical after that and that will be it.

So 6 but possibly 8 at some point and I might get another ssd so the cache drive has a backup.

 

[Psycho Sonny]

Do you have room in your case? What are they used for (are they constantly accessed)? You might be better off with a DAS enclosure.

Yeah I bought one of these

https://www.icydock.com/goods.php?id=175

So that can store 4 drives

Then I can have the SSD's installed using bungee cords in the case.

And I plan on having maybe 3 other drives in the normal drive slots in my case.

If you google the below I'm planning on buying one of them with possibly 2 of these "StarTech.com 15.7 in (400 mm) SATA Power Splitter Adapter Cable - M/F - 4x Serial ATA Power Cable Splitter (PYO4SATA)"

Syba SI-PEX40062 SATA III 4 Port PCI-e 2.0 x2 Card with Low Profile Bracket

I am using it as a UNRAID server for a media server with Jellyfin

https://jellyfin.org/

https://unraid.net/