Nellcor EC-8 Spo2 extension cable 

Connector Guid:7p  to 9pin 

Compatible models No. :  Daascope:Expert,Passport,GE Medical: Corometrics,188/129, Critikon Dinamap 9700/9710/9720 Plus/Compact/MPS/Pro300/Pro400/Select   
Nonin:8500,8604            IvyBiomedical:405P,405T               M.E.D.:Escort ll OPT30,Prism                     Nellcor: DS-100A N100,N200,N180,N-20,NPB-40,NPB-75,NPB 195 Puritan Bennet   Welch Allyn:Propaq 206-EL, Propaq 204 EL, Propaq 202 EL, Propaq CS, Propaq 106EL,