Turn off or standby external harddisk enclosure?

Is it possible by software or what kind of enclosures support that under XP?

 

If you use Serial ATA drive, and Serial external case, with a braket to extend the SATA slot from the motherboard to outside, you will be able to use the External drive just as an internal SATA drive, and setting standby on XP will work on all drive.

http://cooldrives.stores.yahoo.net/insaexsa1ppc.html

http://cooldrives.stores.yahoo.net/sataenclosures.html

 

http://www.shopaddonics.com/itemdesc.asp?ic=AASATAB2