TP-Link TG-3468 PCI-Express Network Adapter (with Normal and Low Profile Bracket) - Newegg.com
Amazon.com: 10Gtek 10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(Intel E10G42BTDA) : Electronics
TP-LINK Gigabit PCI Express Network Adapter - Micro Center
1G Gigabit Ethernet Converged Network Adapter, Compatible Intel 82576 Dual RJ45 Port, PCI Express 2.0 X1, NIC Card for Desktop PC - Walmart.com