Bring fiber connectivity to systems that need a simple, dependable 1 GbE uplink with the AddOn 1GbS Single Open SFP Port PCIe x4 Network Interface Card. Its single-port design keeps the footprint small while giving servers and networked appliances the flexibility of SFP-based connectivity. That makes it a practical choice for environments where a clean, cost-conscious expansion path matters. This card is well suited to infrastructure teams that want to add or replace a network interface without moving to a larger, more complex adapter. The PCIe x4 host interface supports direct integration into compatible systems, while the open SFP port allows the deployment to align with the transceiver and cabling strategy already in place. For branch servers, edge appliances, and general-purpose network nodes, it offers a focused way to extend connectivity. Compared with onboard Ethernet alone, this adapter gives you a dedicated network path. Compared with higher-port-count cards, it preserves expansion slots and keeps procurement simple. It is the kind of component that earns its place by solving one job well: dependable 1 Gb SFP networking in a compact form factor.