Use a slim stack mezzanine connector for Ethernet tasks

[V3rn3r]

Hi folks. Did anyone use a mezzanine slim stack connector for Gigabit ethernet tasks?
I want to connect the board to board with flex PCB following way
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[Paul van Avesaath]

I don't see any problem with that, but be aware of ground loops, make sure you put extra gnd lines with it, also try and keep impedance matched over the flex board..

[V3rn3r]

Many thanks!

[robertferanec]

Once I have designed FLEX for PCIE - no problems. As mairomaster mentioned, be careful about GND (you may want to use a solid / hashed GND plane on one layer) + follow also impedance (double check with your PCB manufacturer).

[Paul van Avesaath]

mairomaster? 😁

[robertferanec]

Paul van Avesaath I apologize