I found a great 8 disk rack that means top x2 disk spaces your can allocate to RK3588.
Basically the boards fit sideways on a tray for 3.5" to 2.5" conversion.
This seller on aliexpress does great kits all in zip bags even with tools
Yeah I got it built but also ordered a Radxa rock3b as was going also use that as a much cheaper sbc but still has 2x lanes of pcie3.0 with a m.2.
Its same format just a less cpu which for a NAS is no problem.
I have been waiting for a slow boat from china before I post updates.
No I like the Radxa Rock5b as it has a single 2.5gb ethernet as a NAS doesn’t need to be a router and you need a managed switch to create trunks or port aggregation.
The RK3568 Rock3b 2x 1gbe so same again but was just going to run with a single nic.
I seem to of been waiting an age so delivery must be soon and will update.
The OrangePi5 is my fave Pi like RK3588(s) board as rate it much more than the Rpi5.
Its a strange thing with the Rpi5 that the RK3588s is near x2 more efficient and slightly faster even when running the Rpi5 @ 2600.
I did try higher OC on the Rpi5 but wow the heat creates a fan noise that was quickly clocked down.