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#11
4GB? or 4TB! is what you meant to say there I assume. I know about heat inside those and why I initially suggested the internal install while also wishing I had seen one like the second eSata/usb over the usb/Firewire with the fan option! Drives get real warm and why I only the Acomdata for heavy transfers and removable backup only between the two desktops here. I actually had the drive used in the one here installed internally more then once first on an old Vista case before getting the enclosure and before going for the two Sata 3 1tb drives I've had in the present build for the last 5yrs.!
With the case here once you unplug the 120mm fan cooler in the front of each 3 drive hard drive bay that pulls out once you remove all 8 thumbnail type fasters you simply put the four drive screws in and slide the cage back in. With other cases you have to reach inside to slide the drive in trying to work past the cables already in use.
With a good quality phillips head screwdriver not no cheapo crap tool that is mismatched or ends up strippiing the head of the fasteners you snug them in slower to allow slack in order to get the drive even on both sides. You will want the matching size as well to avoid any of that.
Never overtighten fasteners on drives especially optical drives as that can damage them as well as the expansion and contraction seen from heating up and cooling off over time! The same size fasteners for optical drives are used on hard drives as well. So it helps to hold onto spares when possible in case you lose one or two if you need to swap drives out some time.