StarTech.com Dual Port 40G QSFP+ Network Card - Intel XL710 Open QSFP+ Converged Adapter - PCIe 40 Gigabit Ethernet Server NIC - 40GbE Fiber Optic LAN Card - Dell PowerEdge HPE ProLiant (
StarTech.com Dual Port 40G QSFPplus Network Card - Intel XL710 Open QSFPplus Converged Adapter PCIe 40 Gigabit Fiber Ethernet Server 40GbE NIC - Dual Port 40G Open QSFPplus N - PEX40GQSFDPI | Novatech
Pcie X8 To 40g Qsfp+ Server Ethernet Nic Network Card Pci-e X8 To 40 Gigabit Fiber Network Card Xl710 Chipset 2 Ports 40000mbps - Add On Cards & Controller Panels - AliExpress
Mellanox ConnectX3 X353A Single Port QSFP+ - 56Gbps Full Height PCIe-x8 HCA Card
Server Network Card 40G, 2x QSFP+ ports (Intel XL710BM2 Based). Buy USA, Europe. - Dimiks
Intel XL710-BM2 PCIe Network Interface Card, Dual-Port 40G QSFP+ NIC - FS.com United Kingdom