This does not work with Peavey VYPYR Series amps,
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This review is from: Proxima Direct® USB to Midi Cable Keyboard to PC Laptop Adapter - For Win 7, XP Vista Mac Plug and Play
I have absolutely no problems with the company that dispatched this item as they were ruthlessly efficient and delivered the next day. The item was as described and at a very good price hence the 3 stars given. Reading some of the other reviews it works perfectly for other applications.
However, if you are trying to use this to update the firmware on your VYPYR Amp then do not bother with this. I have tried over 50 times to try and update with this and it is just not able to maintain a stable connection for the firmware to complete. It is exactly as it states in the forums, hit and miss with cheap brands!
So my advice is if you are desperate to update the firmware on your VYPYR amp then buy one of the recommended ones on Peaveys website as (from what the forums say) they work first time every time.