TheOpticalTrackballTG3 is usedmainlyinultrasoundandotherDigitalImaging(DI)healthcaredevices. cable.Thecableisnecessaryasthetrackballreplacespreviousdesignthathadanintegralcableforconnectingtothemousebuttons.Boththetrackballandthecablearesafelypackedwithadequateprotectiontosurvivethedropte st.Asthisworksontheopticalsensor,theintegratedcircuitwithopticstakecontinualsnapshotofballsurfaceandhowthefeaturesinthesesnapshotsmoveisusedtodetectballmotion.Thisproductisusedspecificallyinmachines likeLOGIQE9,LightSpeed7. 5T, SignaHDxt1.5T, ABUSInveniaGENIIandOptimaXR220amxamongothers.Theycomewithasmoothfinishwithoutanyburrs,sharpedges,surfaceblemishes,sinkmarksandflashmarks.