As mentioned if the systems are close the cheapest way to go will be with a DAC Cable, Fiber Store Sells them, I don't know if the switch is picky about what kind of SFP / SFP+ / DAC Cables it will take (AKA Vendor Locked). Check with Fiber Store, they might sell modules specifically qualifies for that switch. I don't think you will have any issues with the Mellanox Cards, I've never had them complain about any of the SFP Modules I've used and I've used all kinds of no-name ones. The only thing that complained was my Intel Cards, I had to get Intel Specific / Compatible modules.OK, so what kind of cable would I use to connect the ConnectX2 in my PC or server to the switch's SFP+ port?
I'm thinking of getting the Trendnet TEG-30284 since I like the price and I don't need anything fancy.
Also, I may need to buy a new mobo for my main PC, since it only has 1 PCIE x16 3.0 slot & 3 PCIE x1 slots. Will the connextX2 run in a PCI 3.0 x4 slot?