any usb 3.0 drive works, but I am using SanDisk Ultra Fits. price per byte is less and performance is similar or slightly better for reads and way better for sustained writes.

No Overclock.

99-100% CPU on all 4 cores for hours and no throttling. they do run at 75-78C instead of 65C, but I could not get them to throttle.

Even with the cheapo 3 piece heat sinks there was almost no throttling, but they did throttle occasionally after sustained stress.