I want to build a very small system, power efficient with no discrete GPU.
I dream of the ideal mini case for me basically what I want is all this features :
• A case that can fit in a backpack
• Weight under 2 kg (case only)
• Two slots for 2.5" HDD (located under motherboard preferably)
• Case height around 65 mm
• Allow good airflow to CPU
I found some cases on aliexpress that match some features I listed above but not all of them unfortunately.
• Rgeek : https://fr.aliexpress.com/item/32977795837.html
• MetalFish : https://fr.aliexpress.com/item/32891478308.html
These two cases are cool but the Rgeek one has the HDD bracket over the motherboard so it will block the airflow to cool the CPU correctly.
The MetalFish one has a better internal layout (dual 2.5" HDD slot under motherboard compartment) but doesn't allow for good airflow to properly cool the CPU because top cover isn't vented at all (what a shame).
I talked to the seller of these two cases on aliexpress to tell them that's it is stupid to build a case if you can't properly cool the CPU (no vented top on MetalFish one and HDD bracket blocking airflow on Rgeek alternative) but they don't even understand what I'm trying to tell (I guess they don't know anything about technical aspects of computers but still sometimes it really seemed like I was asking my grandma about these products, wowsers).
Today I have built a little system with E-I3S case from Realan but the layout isn't great (HDD bracket above motherboard and no vented for proper cooling).
Here is the link http://www.minicase.net/product_E-I3S.html
With no vented top it makes any top flow heat-sink solutions non viable because it will reduce greatly the efficiency of the heat-sink to cool anything.
It's also better from a noise perspective I don't know why makers of SFF case like the 3 linked above doesn't get that, you don't need to be a genius to understand that.