SATA to IDE adapter: Slow down?

[Static EMP]

I have a SATA hard drive, but my mobo doesn't support it. If I got a SATA to IDE adapter, would that slow it down? Would it be better to just get a PCI card with a SATA port? Thanks!

 

[jackschmittusa]

I haven't seen a sata-pata adaptor (but I've never looked for one either), only the reverse. I doubt that it would make any great difference.