As usual, the "Better, Cheaper, Faster; choose any two" rule applies...
On relay output boards, I can find 8-port relay boards. Great.
But I want ones with header pin so I can just plug a IDC cable in.
There are a few like that:
https://www.ebay.com/itm/322834065204for example.
But I want 24VDC relays, not 5/12V. They exist, but it appears only with screw terminals.
And I want DIN rail mounting, but.....
And it's unclear if the various units have or lack LED's on each relay channel.
Gnash....