In the past with Mint 11 and such, some cards indeed caused problems, but Renesas and Etron should be working too in modern Mint editions. In those old versions, USB 3.0 support in general was bad, not just the support for certain chips - Renesas/NEC is just a very common USB 3.0 chip vendor for PCIe x1 cards. Some USB 3.0 cards/motherboards have a built-in hub, and in Mint 11 there was no support for USB 3.0 hubs yet.
In Mint 12, I haven't had problems with NEC (now Renesas) USB 3.0 PCIe x1 cards anymore. I am now using a card with a VLI (VIA Labs) chip myself, that one is working too (Mint 13).
Registered Linux User #528502
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