N54 N55 JB4 USB Data Cable for Windows PC Tuning, BMS

Plug-and-play USB cable for Burger Motorsports JB4 units on Windows PCs. Designed specifically for N54 and N55-powered BMWs, it enables fast map switching, firmware updates and real-time data logging - no Bluetooth lag, no app lock-in, no drivers needed.

• Direct connection to JB4 via standard micro-USB
• Full compatibility with free official JB4 Windows software
• No Mac, iOS or Android support - this is a Windows-only tuning tool
• Built for track day prep, fast road tuning and daily driver fine-tuning