Star Tech. com QSFP+ Server Network Card - PCI Express - Intel XL710 Chip Star Tech. com QSFP+ Server Network Card - PCI Express - Intel XL710 Chip Converged Fiber NIC Adapter | PCIe | 40Gbps | 1x QSFP+ Slot Features Add an open 40Gb QSFP+ slot to your server or workstation for fast, high-bandwidth connectivity Compatible with multimode and single-mode fiber Intel XL710-BM1 chipset with Intel Virtualization Technology for Connectivity, intelligent offloads and iSCSI/NFS storage over Ethernet