Yes, the small fan on the site was not included, i bought an used one and no screw modification for the motherboard. I drilled holes for the HDD cage and use zip ties lol. Threaded screws were too time consuming.
I gave suggestion to the team and I think they are re-designing this with 9HDDs slot using the same 2U. There were too many wasted space and 9HDDs were possible.
What a great find. I am considering buying it with their rack. Thanks man.
To OP,
I do not know what Motherboard you are using but, I use this motherboard ECS H110M4-C2H and fit it inside a Coolermaster ELITE 130 m-itx case
I modded the case with this hdd rack from ebay...