2010/3/13 Brendan MacRae <[email protected]>: > > Unfortunately, either the card, the driver, or both didn't provide the > 3Gb/sec speed I require. In fact, the transfer speeds were running at slower > than USB speeds so it turned out to be worthless to me.
Sounds to me more like an issue of uplink or bottleneck below the 3 Gb/sec bus you mention, i.e. on the eSATA card. That external drive you mention puts out roughly 100 Mb/sec on a sunny day. USB 2.0 os spec'ed at 480 Mb/sec, Firewire at 400 Mb/sec so USB 3.0 and eSATA won't be fully utilized either since they incorporate even higher throughputs. Also, given a proper uplink, any external SATA hard disk will perform exactly like an internal SATA hard disk. There is an additional controller which - given bus spec compliance - will outperform the disk by a huge margin - and it is pretty much identical with the internal one and an external cable which is the same except in that it has physically different connectors but again built to the same specs as specified in the respective standard. Not writing this to step on your toes, just to clear up / prevent misunderstandings and misspendings. Cheers Ecke -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
