You need it. The Autocal is no good to you if you can’t transfer the files to and from it to a computer so you can email them. The one cable you have is to transfer the files to and from your vehicle. You have to be able to transfer your datalog files to a folder on a computer for emailing, and you need to copy tune files from the email that Blackbear sends to you to a folder on a computer, and then copy them from there to the Autocal and then load the tune to your truck. I’m not sure if it’s proprietary, maybe Wes can look at the end and tell since it kind of looks like he’s into computer stuff.
The other end is just USB. I’m sure BB has an extra cable you can get.
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