SPROG II USB - Complete Package SPROG II v4 USB Specifications:

Specifications:

allows for the calculation and display of the train's scale speed

Dimensions of router: 174 mm x 144 mm x 30 mm

Functions on locos controlled by Jump throttles remain active

What is special about the RaiPro PBM is that the PBM is an active power backup not a passive one like many other power backups

SPROG II USB - Complete Package SPROG II v4 USB Specifications:Includes SPROG IIv4 unit, USB cable, 12V 1A regulated power supply, and instructions to download all software. SPROG II and SPROG3 are stand alone DCC programmers and controllers that work with your computer, able to be used in a complementary manner to an existing DCC system, or on their own.