Mounted external storage unit in Advance BX-E3501B case he shoulder fine 3 scsi drives Seagate Internal 15k. The data transfer eSATA has a fairly fast and steady throughput for an IDE drive. So far no complaints about the stability of recorded data. However, it may be necessary to disable the cache, if Windows extended partition. To avoid the risk of data loss during a write. This in no way calls into question the quality of this support. Just a Windows rheumatism.