You can purchase an online hard disk enclosure from the shopping website known as newegg. Alternatively you may find a better price on the amazon shopping website or from the ebay bidding website
An external enclosure for a hard drive can be purchased from Staples, Sears, Walmart, and many other stores. It can also be purchased from Best Buy, Amazon, and Office Max.
One can purchase an eSATA external hard drive enclosure through their hard drive manufacturer or through a IT store either locally or via the internet.
An External HD is a hard drive that is in a separate enclosure other than your PC that connects via a wire. Most commonly USB, ESATA or firewire.
express Sata basically you can make your internal hard drive external using your esata port the cables are basically the same so all you need is an enclosure that has an esata port, esata is for fast data transfer your can reach speeds over 90mbp/s transferring data.
One may purchase an eSATA hard drive on-location at many retailers including Best Buy, Ultimate Electronics, and Circuit City. One might also find an eSATA hard drive at Walmart or Target.
A protective hard drive dock.
The companies found which product computers with an esata port are as follows: Hewlett Packard, Toshiba and LG. Esata ports could also be purchased as an external hard drive.
50-85 Mbps for eSATA vs 25 - 45 Mbps firewire 400 not sure what 800 goes to but eSATA will still be faster it's just like an internal drive. eSATA is up to 6 times faster than external firewire according to the fabulous Guide to managing and maintaining your PC by Jean Andrews
7-pin connector
External SATA (eSATA) is up to six times faster than USB or Fire Wire
External serial ATA (eSATA) hard drives is up to six times faster than USB or FireWire.
SATA and eSATA are electonically the same, but the construction of the cables and the terminals is different. The major difference between the two is that SATA is designed for use inside a computer system while eSATA is for use externally.
eSATA
External serial ATA known as eSATA is up to six times faster than USB or Firewire.