Based on this product's specifications, here are some alternatives and similar models
SFP Module Dell 1000Base-LX Long Haul 01-SSC-9790 — Gigabit fiber transceiver, single-mode
Summary description:
Dell SFP Module 1000Base-LX Long Haul (01-SSC-9790) is a gigabit small-form pluggable fiber transceiver designed for long-distance single-mode fiber links. It supports 1000 Mbps Ethernet over single-mode fiber, suitable for backbone, campus, and data center uplinks. Hot-pluggable design enables easy installation and replacement, providing reliable high-speed connectivity for network extensions and interbuilding connections.