Intel 8541587825 Gigabit ET Dual Port Server Adapter

The Intel Gigabit ET Dual Port Server Adapter delivers two independent 1000Base-T Ethernet connections from a single PCIe 2.0 x4 low-profile card. What that means practically: you can add redundant network connectivity to a server — active-passive failover or active-active load balancing via NIC teaming — without consuming two PCIe slots. The 1 Gbps per port spec handles the full range of standard server networking tasks: file sharing, iSCSI storage traffic, database queries, backup streams, and VM network traffic. The PCIe 2.0 x4 bus provides more than sufficient bandwidth headroom for dual Gigabit at line rate simultaneously, so the interconnect never becomes the constraint.

The real-world deployment case for this adapter is the server environment that needs proven, manageable Gigabit networking without the complexity or cost of 10GbE infrastructure. Virtualization hosts benefit from having dedicated NIC ports per vSwitch, keeping VM traffic and management traffic on separate physical paths. File and backup servers use NIC teaming to improve aggregate throughput toward the 2 Gbps theoretical ceiling. Intel's enterprise network controllers are embedded in major hypervisor and OS driver stacks — ESXi, Hyper-V, RHEL, and Windows Server all treat them as first-class devices. For organizations running proven 1GbE switching infrastructure, this adapter provides a cost-effective, slot-efficient, long-lived connectivity solution.