It looks like the link for the latest Mellanox Driver for Debian 8.3 is broken:
http://www.mellanox.com/downloads/ofed/MLNX_EN-4.0-2.0.0.1/mlnx-en-4.0-2.0.0.1-debian8.3-x86_64.tgz http://www.mellanox.com/downloads/ofed/MLNX_EN-4.0-2.0.0.1/mlnx-en-4.0-2.0.0.1-debian8.3-x86_64.tgz
I am eager to try this release. Is anyone available to fix this?