“Is there any way you can tell this is a Viper Ultimate with their second gen optical switches, or this is the first gen.”

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• For a while it was going around that you could use the SN to check the production date to determine if the mouse was produced after the update was implemented but, looks like that isnt the case anymore. Here's an explanation from a YT video: "So, it ends up that there is no way to correctly identify by SN or PM number which “batch” of mouse you have unless if you buy a colored version. As they come from different production lines in multiple locations. Therefore, it appears to be IMPOSSIBLE to know if you have a V1 or V2. Which goes back to if you develop an issue with a click then you need to contact Razer and go through the RMA Process. "

  Answered by David 5 years ago

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• There isn’t an incredible difference but if you had the different versions side by side you would be able to tell the difference

  Answered by regitac 4 years ago

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