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Download product manuals and product updates in the downloads section.

the Xtrema has its own web site at

Product Videos

Jason's torque roll
(Yes, there is a plane in there!)

Xtrema USB Data Cable

Xtrema USB Data Cable (XTR-USB)New all in one custom molded cable allows you to connect your Xtrema Charger / Wattmeter or Balancer to a USB port for extra functions and online updates of your products. (USB Adapter made in China)

XTR-USB Price -

Xtrema Charger and Balancer Beta RELEASE

new Beta Firmware Update Xtrema Charger v1.3.11b and Balancer v 2.0.2b Beta Firmware

Data Cable DRIVER Updates


Xtrema USB Data Cable Driver All-in-one version

Xtrema USB Data Cable Driver oldest all-in-one version

Xtrema USB Vista Cable Driver

Xtrema USB XP Cable Driver

Windows Vista/7/Server2008 (32 & 64-bit) WDF WHQL Driver: v3.3.10.140
NOTE: For Windows 7, please use RC build 7100 or RTM 7600 Final version. (Installer program will not run on early Windows 7 or Beta versions)