Recognise your MSM 400 Ian - Service & Support Manager 12 April 2023 14:12 Updated MSM 400 : This is a photo of an MSM 400. The touch screen (MCI) has been upgraded to a Windows 7 operating system on the more recent MSM 400's. Related articles Who makes the objectives for the MSM400? Singer Lab Support Tetrad Dissection - Quick Start Guide MSM 400 User Guide What is the best magnifying power for yeast dissection? Comments 0 comments Please sign in to leave a comment.