PLUMAX Info?

To anyone having the a Plumax Combo IDE USB 2.0/Firewire IEEE 1394 External
Enclosure for 3.5" & 5.25" Devices:

I would be greatly appreciative if you could take a ruler and measure the
max drive length that this enclosure will handle (the distance from the
internal electronics in the back to the front of the enclosure face plate -
measured from inside the enclosure). I am interested in obtaining one - but
only if it can handle one of my removeable racks.

Unfortunately, Plumax has no website or customer support that I can get the
information from.

TIA

T.F.