PowerMouse update cable with RJ45 8-pin connector for PowerMouse or PowerFLARM and DB-9f connector for PC, and 12V power leads.  For updating the PowerMouse's ADS-B Module.

Note: This cable is designed to connect to a DB-9 9-pin RS-232 serial connector on a PC.  Most current PCs don't have 9-pin serial connectors, so a USB to serial adapter will be required.  I have tried many, and found many that didn't work at all.  I finally found one that works great with most soaring instruments.  You can see details here: FTDI Chip USB Serial Adapter.