Hi, I don't see that part - 4x4RK as supported in the R740. All the Emulex cards I see as supported in the server are full height PCI cards from the LightPulse series. We do have part 68M95. which is an Intel 10GB fibre channel rNDC, as an example of a validated rNDC. That one does not have RDMA, but XVVY1, a QLogic 41164 10GbE SFP+ card does.
PowerEdge R740 (a couple running Hyper-V cluster) I went with Dell OCm14104B-U1-D Quad-Port 10Gb 10GbE NDC Network Daughter Card 4X4RK in both and that is a disaster on Server 2016 OS This card is not supported by Broadcom, as it is Dell specific This card was never certified for any server OS - [URL] Dell drivers/firmware are OLD, very OLD. I had new updated given by Broadcom, but still  getting all sorts of random errors (on either server) Emulex OneConnect OCm14104B-N1-D 4-port 10GbE rNDC NIC : The network device detected an error. Emulex OneConnect OCm14104B-N1-D 4-port 10GbE rNDC NIC #4 : The network device detected an error. Emulex OneConnect OCm14104B-N1-D 4-port 10GbE rNDC NIC #2 : The network device detected an error. Emulex OneConnect OCm14104B-N1-D 4-port 10GbE rNDC NIC #3 : The network device detected an error.   Usually that ends in Hyper-V node crashing out from cluster   So the question is: does anybody using any RNDC that is supported & is known to be fully working? In worse case PCI-e SFP+ dual port card? Preferably one with rDMA? Seb
Working network daughterboard for R740