>>55252290
I can't tell. The SMART reading from the mSATA seems like they're running as cool as the 850 PROs on the back of my motherboard, but I have no idea how hot the controller on the card is.
Word of warning, if you have 32/64-bit Windows 7 (or earlier) or 32-bit Linux, the card won't work properly without having to download a few additional drivers for the RAID controller. And even then, you'll see your RAID array disconnect during heavy use. I'm guessing the tiny heatsink over the RAID controller isn't doing its job properly.