Loads of times.
As Chester025 says, they are formed of Swiss air-con stock though I have occasionally seen "fresh air" stock on these during busy times (DB "IR" coaches or older Swiss stock). Locos are always Mühldorf 218/4s, mostly in pairs but single ones are not totally unknown. Loco diagrams can be found on the
V160 website though you have to register to get them via the "Mitglieder" button on the top right.
The Austrian / Swiss leg of the trip is hauled by an SBB Cargo Re4/4,
see this picture passing Rorschach
Love travelling on either route, both pretty scenic - I can't comment on fares as I have always used a pass of some sort or other, but expect that there could well be some cheap advance fares available via the DB website if you book far enough in advance and can commit to a certain train.