Quad port 40g or 100g nics

[boe]

Anyone know of any quad port 40 or 100g nics besides this one PE31640G4QI71 server adapter? I admit, I've never heard of this company before so I have no idea how their support or quality is.

Silicom Ltd. | 40G Networking Server Adapter PE31640G4QI71

 

[Blinky 42]

I don't think there are may out there as folks went to 100Gb+ vs many 40Gb ports, so I wouldn't expect a super high volume -> not inexpensive.

It would need to have a PCIe switch + 2 of the XL710's on there, each only supports 2x 40G ports by itself, or only run on a x16 port that can bifurcate into 2x8 with a x8 port for each of the xl710's. That detail should be easy to find on there but I don't see it so you would want to inquire before attempting to order.

Intel® Ethernet Controller XL710-BM2 Product Specifications and https://www.intel.com/content/dam/w...t-briefs/xl710-10-40-gbe-controller-brief.pdf

Assuming it does, other than probably running very warm it should act similar to just having 2 dual port 40G cards with a minor performance hit due to the switch, or limitation in compatible motherboards without the switch.

 

[kiteboarder]

My understanding is that for dual CPU servers, many of the high end implementations use two separate 2 port cards - one for each CPU. This eliminates most NUMA latency issues.

Besides, there's not much point in a 4 port 40Gb card on a single pcie gen 3 x16 slot (x16 x 8Gb per lane = 128Gb max throughput).

 

[boe]

There would be for me as I'd want it so I didn't have to do a switch - 1 40g connection to 3 different PCs- direct connect from my main PC. I only typically have 1 active at a time.

 

[kiteboarder]

See page 1.
https://forums.servethehome.com/ind...s-cheap-powerful-10gbe-40gbe-switching.21107/

The 6650 might be a good solution for you.

 

[boe]

Thanks, I appreciate the suggestion but I really really don't want a switch. Unless someone makes an 8 port fanless 40g or 100g switch that doesn't overheat.

 

[boe]

I started to look at this stuff again - found this - Silicom Ltd. | 40G Networking Server Adapter PE31640G4QI71

It could be $10,000,000 for all I know but it does exist.

 

[boe]

I got a couple of 40G xl710 dual ports hooked up with a dac. The cards were $185 each used and the dac was $60 new. I got a price on the PE31640G4QI71 quad port new and it was about $1800. Hopefully someone will eventually be selling one on ebay.

 

[Deslok]

That silicom card is actually a pair of xl710's on the same board with a pcie switch(it's a trick they've done before several times)