pjmelect :
Why would anyone want a USB to SATA adaptor? You can buy a SATA to USB adaptor for not much money, is that what you meant?
Nope, been using the SATA/IDE-TO-USB adapters to virus clean systems for other people for years. My understanding is that those adapters have to be actually listed as "bi-directional" to do what I need.
MY need is to have an inexpensive set of 2 or 3 USB flashdrives in 8-16Gb sizes (about $16 locally at MicroCenter) set up as 1 with WinXP Pro and only a few essential programs/games, 1 with Meego Linux, and 1 with "other" linux versions it supports like Freespire/Ubuntu/Linux mint/Android/etc.. The main reason for flashdrives is that they will fit inside the harddrive compartment when closed, and the hardware adapter would need to make the flashdrive appear as a NON-REMOVABLE MEDIA drive to the BIOS/OS/SATA connector.
I recently ordered, but haven't tested yet - an SDCard-to-SATA adapter, and have a 16Gb Class 10 card to use with it {Will buy more if the USB's not an option}, but the read/write speeds of a USB 2.0 port are 480Mbps compared to roughly a 30Mbps MAX on the *most* expensive SD/CFlash cards out now.