What the heck is a Dell model "PRX" port replicator ?

Archived from groups: alt.sys.pc-clone.dell (More info?)

It looks identical to a Dell C-Port-II, except the square emblem on top
merely says "Dell" rather than "Dell C Port/II"

I tried it with a C640, CPx, and CPi, they all tell me "The attached docking
station is not supported on this system".

What the heck is this thing, and what systems DO support it ?

Label on the bottom sez:

DELL Advanced Port Replicator
Model No. PRX
Input 20V 3.5A
For use with adapter model PA-6

(For what it's worth, I paid $10 for it at the local suplus house. But
obviously I can't use it. Anybody here wants it, I'll take $10 plus the cost
of shipping from Beaverton Oregon).

- FM -