Dual port Gigabit Ethernet Adapter Network Adapter NIC Intel- 82571EB PCIE Card | eBay
Amazon.com: Dual-Port PCIe Gigabit Network Card 1000M PCI Express Ethernet Adapter with Intel 82575/82576 Two Ports LAN NIC Card for Support PXE for Windows/Windows Server/Linux/Freebsd/DOS with Low Profile : Electronics
PCIe to 4-Port Gigabit Ethernet Adapter Realtek RTL8111 Chipset | ZimaBoard Official Store
OWC 10G Ethernet PCIe Network Adapter Expansion Card at MacSales.com
Intel 1GB Single Port PCIe Network card (half height) | Dell USA
STCST10GSPEXNB - StarTech.com 1 Port PCI Express 10GBase-T / NBASE-T Ethernet Network Card - 5-Speed Network Support: 10G/5G/2.5G/1G/100Mbps - PCIe 2.0 x4 - Add an Ethernet port to a server or workstation,