Amazon.com: 10Gb NIC SFP+ PCIE Network Card with Broadcom BCM57810S Controller, Dual SFP+ Ports, Fits for PCI-E X 8/x16, PCI Express LAN Card Support Windows Server/Windows/Linux/VMware : Electronics
LR-LINK Mini PCIe Dual-port Gigabit SFP Ethernet Network Adapter
StarTech.com 10G PCIe SFP+ Card, Single Open SFP+ Port for MSA-Compliant Modules/Cables, SFP NIC - PEX10GSFP - Ethernet Adapters - CDW.com
Myricom Single Port 10G-PCIE-8B-S Network Adapter Card With 10G SFP Full Height
Amazon.com: 10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(Intel E10G42BTDA) : Electronics
10G PCIe SFP+ Card, Single Open SFP Port - Network Adapter Cards | StarTech.com