Features:
Programs Castle car controllers without a computer
Works as a complete USB Castle Link with your computer
Works with all Castle Link compatible car products

Includes: One Field Link Portable Programmer Card and One USB cable

Requires: Windows PC and Castle Link Software

Specs:
Length: 55mm (2.2)
Width: 85mm (3.3)
Thickness: 5mm (0.20)

Note: Will only work with Castle controller firmware released after 2007.