A lab necessity! Don't be fooled by the price. This is a very high-quality, 40 position, multi-color female to female ribbon cable. The ends are designed for easy insertion into standard 0.1" female headers. Each wire is 20cm (8") in length.
The cables can be separated to form an assembly containing the number of wires you require for your connection and to support non-standard odd-spaced headers.
We have found these to be invaluable in the lab and we're sure you'll love them too!