StarTech.com Dual Port PCI Express (PCIe x4) Gigabit Ethernet Server Adapter - 2 Port Network Card - Intel i350 NIC - GbE Network Card (ST2000SPEXI) - network adapter - PCIe 2.1 x4 - Gigabit Ethernet x 2

Add dual Gigabit Ethernet ports to a client, server or workstation through a PCI Express slot. The ST2000SPEXI PCI Express Dual Port Gigabit Network Card lets you add two gigabit Ethernet ports to a desktop computer through a single, four-lane (x4 or higher) PCI Express slot. Each port is fully compatible with IEEE 802.3/u/ab standards, for 10/100/1000 Mbps auto-negotiation.
This 2-port GbE network card is based on the high-performance Intel I350 chipset, which offers several advanced driver options including IEEE 802.3ad link aggregation / teaming support, enabling you to add additional bandwidth to your system. Support for Jumbo Frames, full-duplex operation and 802.1q VLAN tagging also aid in creating an efficient network configuration.
Also useful for virtualization applications (check your VM software for chipset compatibility) or setting up a dual-homed host configuration, this dual-port network card lets you accommodate several complex network scenarios, to meet your business needs. For added versatility, the controller card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.