The Racepak Emergency Kit (REK) contains essential spare components that any racer who depends on a Racepak system should keep handy. In the heat of battle at the track, it's easy to misplace programming cables, memory cards, serial adapters and more. The Racepak Emergency Kit puts a backup set of the parts racers use most to program their Racepak logger and transfer data to a PC in one convenient zip-lock bag. A spare driveshaft RPM connector is included with this kit, as is a USB flash drive containing Racepak DataLink II software and manuals for easy reference.