Need a Mellanox adapter double-check

[Dajinn]

Mellanox Connectx 2 VPI 10GbE Dual Port Adapter Card MHQH29C XTR | eBay

That listing says it's a 10Gbe adapter but it's actually QDR IB right that's backwards compatible down to DDR and 10 Gbps speeds? Correct?

 

[archangel.dmitry]

QDR - InfiniBand data rates up to 40GB/s, 10GB/s - Ethernet.

 

[T_Minus]

Those are what you want, and I believe the deal prices are $30ish I can check it was ~6mo ago I recall a big buy.

I also recall being sure to check for bent retainer clips for the adapters/plugs... I didn't, and found 2 badly bent.

 

[Chuckleb]

Yes, VPI cards are dual stack, supporting both IB and Ethernet. QDR can negotiate down to DDR and SDR, just like a 1Gpbs port can connect to 10/100 switches