The Lenovo Intel I350-T4 4-Port Ethernet Expansion Card is a dependable and cost-effective solution to add four high-performance Ethernet ports to your PC through one PCI Express slot. The expansion card features an Intel I350 chipset, designed to deliver the power, performance and enhanced capabilities you need for reliable network connections to your Think desktop or workstation. The quad-port network card makes it easy to access multiple networks and gives you four redundant, independent Gigabit Ethernet ports. Top Features Haloen-free quad-port Gigabit Ethernet adapters with copper interface Innovative power management features including Energy Efficient Ethernet (EEE) and DMA Coalescing for increased efficiency and reduced power consumption High-performing bridgeless design supporting PCI Express Gen 2.1 5GT/s The I350-T4 performance enhancing features include Single Route I/O virtualization (SR-IOV), Virtual Machine Device Queues (VMDq), Intelligent Offloads, PCIe v2.0, 9.5K Jumbo Frame support and time-stamping.