It’s alive!! 
my first baby Jbod is up and running
All it needs is a single SAS connector and an atx 8pin for power. 2U by 40cm deep for 12 bays.
Still can’t believe HP designed this backplane to need 2x 10-pin connectors (it really needs both), talk about overengineering things. That’s the same power potential as 2x sata + 2x pcie 8pin, all in 16awg wire of course…
Now it’s gingers crossed that those shitty 1,99 euro/pcs fans will draw enough air through to keep the disks cool