The Basics:
The Eagle Tech ET-CSIU2J-BK is shown in the images below. It is shipped with a bright orange front cover installed, but if that is a bit loud for your tastes there is a dark gray covered included, as well. The bulk of the housing is aluminum, while the front is plastic and the rear is steel. The replaceable front covers are also plastic and simply pop into place without tools. The circle on the front of the enclosure lights up when in use to indicate power and drive activity.
 
The back of the enclosure is shown below, and the key features include a USB port, power switch, power plug, backup button, and cooling fan. The fan is advertised as a "6cm smart fan", which isn't even close to being right. The outer dimension of the solid frame is about 44mm, and the diameter of the opening is only 34mm. It looks more like a turbine than a fan, and with so many spokes in the path of the air, I suspect that air flow would be much better on a traditional 60mm unit.
The drive tray is held in by four screws that attach through the bottom of the housing. With these removed, the tray can be slid out the back, but don't move too quickly as you have to disconnect the cable that runs to the LED on the front of the enclosure first (see below left image). This seems like a poor design to me; having to plug in the cable is one thing, but you actually have to bend the cable ninety degrees and mount it to a 4-pin connector located between the PCB and back plate of the housing. Not easy given the length of cable, location, and style of connector.
 
The above right image shows the drive tray slid out just a little. This is of interest because there is only a slight gap between the PCB and the sides of the enclosure, and on the top half of the device only. With a solid steel drive tray sealing off the bottom and most of each side, the only place for the cooling fan to draw in any air is from the top. Combining this information with the below left image makes it clear to me that the lower drive will not see much, if any, cooling. Air will be drawn in through the small holes shown in the below right image and only can only pass along the upper drive's top surface.
 
The drive cage holds two SATA drives which slide onto a combination data/power connection with ease. Once seated on the connector, each drive is secured by four screws provided in the bundle of accessories. The four screw holes shown in the bottom of the tray are where it attaches to the housing when fully assembled.
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