More thoughts -
The FAServer 400, 450, and 1300 had VGA consoles. The 1400 had a serial console because instead of a VGA card, you had the card for the hot swap support logic, plus a serial port. One could theoretically put this card in other systems as well and convert them from VGA to serial console systems, but the hot swap capability in a tower model probably isn't going to be very useful.
F520 ("medium") Roughly similar in performance to the old F540, but inheriting the blue bezel of the F330, which was the previous "medium" server.
Actually, the F520s blue is a different shade than the F330s, but it is not a very noticeable difference unless they are side-by-side.
Bruce