DragonSteelMods.com posted a review on the Thermaltake Max 4 Active Cooling eSATA and USB 3.5" SATA HDD Enclosure A quote from the article:

Thermaltake has sent me their Max 4 hard drive enclosure that features active cooling in the form of a silent 80mm fan that is only 15mm thick, so it really only adds about 15mm to the overall thickness of the enclosure and keeps your hard drive cool. The Max 4 also features dual interfaces in the form of USB and eSATA allowing you to utilize the higher transfer rates of an eSATA connection if there's one available. So continue on to check out this enclosure...

Thermaltake Max 4 Active Cooling eSATA and USB 3.5" SATA HDD Enclosure Review