Recommended IDE-to-USB bridge chipsets and hard drive enclosures?

[G. Mirov]

Hello,

On 8/14/07, Torfinn Ingolfsen <torfing at broadpark.no> wrote:
> FWIW, I have two other IcyBox'es, the IB-251U and IB-270U. Used with
> FreeBSD 6-stable and 7.0-current, not tested with 4.x.
>
> IB-251U:
> from /var/log/messages:
> Aug 14 01:33:15 kg-work kernel: umass0: Cypress Semiconductor USB2.0
> Storage Device, rev 2.00/0.01, addr 3
>
> from 'usbdevs -v':
>  port 6 addr 3: high speed, self powered, config 1, USB2.0 Storage
> Device(0x6830), Cypress Semiconductor(0x04b4), rev 0.01
>
> IB-270U:
> from /var/log/messages:
> Aug 14 01:39:36 kg-work kernel: umass0: Cypress Semiconductor USB2.0
> Storage Device, rev 2.00/0.01, addr 3
>
> from 'usbdevs -v':
>  port 6 addr 3: high speed, self powered, config 1, USB2.0 Storage
> Device(0x6830), Cypress Semiconductor(0x04b4), rev 0.01
>
> Both units work fine, as far as I can tell-

thank you very much, that helps a lot. I used the detailed information you
provided to search for chipset details and it seems that at least IB-251U
and IB-270U are based on the Cypress 7C68300A-56PVC chipset, so the
3.5" units like the IB-351U are probably based on the same chipset.

Device(0x6830) reveals that it's a Cypress xx6830xx chipset based bridge,
but Is there a way to find out the exact chipset ID (Cypress 7C68300A-56PVC)
of a connected bridge under FreeBSD?

Could you tell me what kind of read/write performance you get with and
without the Icy Box enclosures you mentioned? Thank you.

G. Mirov