US $97.68 31%OFF | PCIE SATA Card 24 Port with Cables, 6 Gbps SATA 3.0 Controller PCI Express Expression Card Support SATA 3.0 Devices Chia Mining
This is way better than the solution I posted haha, but it's a premium price too.
If OP needs more than 4 or 5 satas he'll probably need to buy this one you posted
This is just general advice, not a comment about "mining" chia.
OP said he's going to use HHDs to mine chia
After you plotted the hdds, the usage is minimum, from time to time the miner will check the plot and it's ok
What´s more consuming is the phase of plotting, but you need to plot only once