Product review (4 stars): Direct swap of old unit, but has additional features
Unexpectedly, this unit does have provisions for ducting. A duct collar & damper are supplied, so it can be installed either way. For me, it replaced the same model older unit which was non-ducted only, so I installed it non-ducted.
Unlike the photo shows, on the unit sent to me, the fan & light rocker switches are black on black background.