Two are Intel s3710 400GB and the last ones are Samsung 960gig MZ-7LM9600
Google Fu shows:
Both the Intel and Samsung drives are 7mm in height, so you can pretty much fit them in any #x2.5" to 5.25" cage.
Intel average power consumption 5.4w while Samsung ~3-4w (PM863/MZ-7LM960) - couldn't see MZ-7LM9600.
I've had the 8-bay ToughArmor MB998SP-B populated with 8 Samsung 850 EVO (~3w) drives without any noticeable heat issues.
I had removed the fans off the ToughArmour unit too.
They were in a well-ventilated case and then moved to a rack with only front-to-back airflow.
Never did any break-in or perf testing for any period of time though.
If you only need 4 in 1 5.25" space, I'd go for the cage units that support 4 x 15mm drives.
The extra height can mean better air flow.
Alternately you could get a 8 bay unit and leave an open slot between drives.
Personally, i am always very quick to drill holes and/or add low flow fans to anything
I think will generate heat/not have good air flow.