EURIKA!!! I found the correct cable. WOuld have never known what to look for without assistance.
My most humble thanks to everyone...

If I can't find the correct one, where can I buy a new one? I have a gray one. its long and currently plugged into the charger. I'll look to see if it has an oversize USB end.

So now I have to find the exact cable that came with it!
Thx guts...

Is the re-chargeable battery in the CMS-50E replaceable? Don't see an access...Oh yes. The bottom cover comes off. Battery has a circuit board attached and leads that solder into another circuit board. Hummmm Anyone replace these before? This unit was only used 20 or so times. Then let sit for 6 mon...

Have not used my CMS 50E O2 recording sensor for several months. Started up the SpO2 software, hooked up the USB connection, turned on the sensor, and clicked on the connection icon. Received a message, On Device Found. Anyone have this problem? Would appreciate any assistance offered.