Trendnet has been quietly building up a massive portfolio of USB 3.0 gear over the last few months with all sorts of stuff from enclosures for external storage to USB 3.0 hubs. All of that gear is stuff that USB 3.0 fans will need eventually. The latest gear from Trendnet is the new external HDD enclosures for USB 3.0 including the TU3-S35 and the TU3-S25 enclosures.
The two are similar with the major difference being that the S35 is for 3.5-inch HDDs and the S25 is for the smaller mobile 2.5-inch HDDs. Both of the enclosures attach directly to the USB 3.0 port of your computer and support a single HDD inside. The S35 can work with HDDs up to 1TB or more in capacity, as can the S25.
Neither of the enclosures ship with a HDD, you have to provide your own. The can use SATA I or II HDDs and the aluminum housing of the enclosures helps to keep the drive cool in operation. The S35 enclosure sells for $79.99 and the S25 sells for $59.99.