no, I think in the list is at least one with a SD81, too the Maxtor enclosure could be especially "tuned" for the barracuda, because Maxtor belongs to Seagate so I don't know if it works with any other enclosure to straighten that out: I don't know if my hdd is really "busy" or if it's locked somehow by Maxtor/Seagate to work in the enclosure only, the only thing I know is it works in the enclosure, but not with my mainboard (Gigabyte GA-K8N51PVMT-9 with nForce 430) if anyone has any USB external SATA enclosure, please test it with your "busy" barracuda and report back