I believe the MSC switch must be included I didn't see a separate listing on the pricing sheet on their website and they didn't ask me when I ordered. This will be my third Seacam housing. I thought about switching to one of the less expensive housings for a brief moment. What I like about the Seacam besides them being very fashionable is I don't have to spend much time fiddling with the housing between dives. Other than the short time spent changing the card, battery, lens or port I do nothing else. Don't have to worry about a loose port because they kind of snap into place. Anyway just my humble opinion. Mine should be arriving shortly. Took me four months to get the camera.