Build reliable Gigabit links over single-mode fiber with this 1000BASE-BXD SFP optics module. Rated for up to 10 km, it is a practical fit for access, aggregation, and inter-building connections where standard short-reach optics do not provide enough margin. The asymmetric 1,490 nm transmit and 1,310 nm receive design supports bidirectional operation in BXD architectures, helping reduce fiber usage while preserving clean link performance. For teams standardizing on Arista-compatible optics, this module offers a straightforward way to extend production connectivity without moving to a more expensive long-reach part. It is a strong choice when you need dependable distance, compact SFP packaging, and a spec profile that matches real network requirements rather than excess capacity. That balance makes it easier to justify in environments where uptime, port density, and procurement discipline all matter.