These are the best IDE to SATA adapters avaliable, it is the best option for the original Xbox.
Supports UDMA5 and possibly UDMA6 and is much faster then the generic adapters and is noticiable.
Has a big benefit for TSOP'd consoles, I grabbed another for the collection to go with my seven consoles.
Lol got a few of these in a draw from year 2000.