in case of...
in case也是表示“以防；万一”，但是in case后面接条件状语从句，而in case of后面接名词或代词等。
You'd better take an umbrella in case of rain.
=You'd better take an umbrella in case it rains.
A: It's the conference room ready?
B: Yes. I have put the meeting agenda and the minute book on the conference table. There are also papers and pens next to each nameplate. But I found something confusing on the nameplates.
A: What is it?
B: Two of them were misspelled on the nameplates, a bit different from what I had seen on the file.
A: Remember to check it out in case of such a silly mistake.
A: I remember there was something wrong with the projector in a conference room. Has it been adjusted this time?
B: Yes. I have asked a professional repairman to check it and he said that there is no big problem. Just be careful not to let the thread loose in the process of using it.
A: That's good. I come to tell you that you need to send the meeting notice to the attendees in advance. Once some people are unable to attend the meeting, we need to adjust immediately.
A: Additionally, you should personally check the necessary items in the meeting room, such as microphone, loudspeaker, lighting and so on. And make sure to provide boiling water, teacups and ashtrays at the conference table.
B: OK, no problem. I will certainly do these things myself.