Installation:
Installation of your one or two hard drives in the I-Series enclosure is incredibly simple to do. After removing the four screws seen on the bottom of the enclosure you can simply grab the back plate and slide it right out. The drives you want to install each get pushed into their corresponding drive trays and when they are back far enough they will dock with the SATA signal and power connectors. Four screws per drive, two on either side, will hold them in place. Note that this enclosure does not use any sort of rubber grommets between the drives and the drive caging so any drive vibrations will be transferred right through to the enclosure without any dampening. This would perhaps be a good area of improvement for similar future enclosures from Eagle Tech.

 
(Click above to see enlarged)

Testing:
When I first turned on the I-Series enclosure I was quite surprised by the amount of noise. Since it uses a small fan, it therefore spins quite fast and makes a noticeable sound. There was also a high pitch hum that was emitted from the enclosure. I am unsure if what I heard was fan noise or electrical circuit noise but it became quite annoying after it was running near me for a length of time.

Benchmark results, illustrated below, show that the I-Series has basically the same performance as most other well made USB2.0 enclosures that I have reviewed here. Most of these enclosures push the USB bus right to it's limit for transfer speeds so unless it's a really inexpensive enclosure I barely ever see any numbers lower than those achieved with both the I-Series enclosure and many others.