You MUST have a Dog Bone case first (item B00MRKSGP2 or B00BR1IJUO)
Each kit can add one stack of RPi B+ and you can build many stacks
Best choice for cluster users, NOT for a single pi
DO NOT buy if you ONLY have one Pi; Dog Bone case is NOT included
A step-by-step guide is included

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.4 inch
Height : 0.2 inch
Length : 5.2 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B00MRLM9QS