I don't have my DEC module guide handy unfortunately so I don't know which 
part number you want, however lets consider your options:

The 4000/300 connects the DSSI drives internally via the back plane. This 
is "hard coded" to connect to one of the DSSI channels on the CPU. If you 
install a KFQSA, you _should_ bea ble to connect it to the front panel DSSI 
connector and create a "loop" the same drives will appear twice to the CPU, 
once as MSCP drives and once as DSSI drives. I've not tried this so I 
cannot say that I've seen it work, but both the DSSI bus and the DSSI 
drives support multiple masters talking to the bus.

--Chuck

At 11:35 AM 2/1/02, Administrator wrote:
>Ok...i have the VAX 4000-300 in the BA440 chassis.  Which KFQSA
>cabinet kit would i need for that one?
>thanks
>bruce
>
>***previous message below***
>
>What kind of chassis do you have? The interface card is the KFQSA-AA,
>this
>is the board itself, then there is "board + cabinet kit" which is
>different
>depending on if you have a BA213/215 or a BA23/123 chassis. Also there
>is
>one where there is a cable that goes up to the top of the BA213 (this
>was
>for the 3800/3900 systems) and one where it comes out the front
>(3300/3400
>systems).
>
>--Chuck
>
>At 05:14 PM 12/6/2000 -0800, you wrote:
> >Hi.  I think I remember reading in some news posting
> >that I could use a KFQSA controller to make use of
> >my DSSI drives (2xRF73 & RF74) in my VAX 4000/300.
> >
> >Ive started searching for one, but Im not exactly sure
> >which model to get.  There are many KFQSA to choose from.  For example:
> >
> >         KFQSA-AA
> >
> >         KFQSA-SA
> >
> >         KFQSA-SG
> >
> >         etc.....
> >
> >Which models work in the VAX 4000/300?
> >
> >Which cables/other accessories do i need? (part#?)
> >
> >Thank you