Hi Ophirmaor,
There is no way ? That is,
"The QSFP+ to 4x SFP+ cables provide 40GbE systems
the ability to connect to 10GbE switches or adapter cards."
in http://www.mellanox.com/related-docs/prod_cables/Hybrid_Passive_QSFP_4x_SFP_10Gbs_Cables.pdf
is a misnomer ? Or this expression says, this cable can reduce the speed from 40GbE to 10GbE.
I could not understand from it.
Thank you for your useful information.
Regards,
Morihisa