well I tried it last night with my new 4163b....worked perfectly!!!!
I have a case tht uses both USB 2 and Firewire but I only use firewire...Have not tried the 4163b at 16x....I do have a Benq 1620 and some TYs....16x burning in this case is NO issue.
paid $89 Canadian
(got to this page from www.techcraft.com
and searched for part number NME-FR918U2F)
look at the bottom for model NME-FR918U2F
case has a fan.
Don't know how good the USB 2.0 is as most boards I have looked at say Firewire is better the higher you go with speed requirements.
Will try the 4162b later...but as far as Benq is concerned I have no issues at 16x with TY media and this case.