Based on this product's specifications, here are some alternatives and similar models
Network Transceiver Module Cisco GLC-LH-SMD
Summary description:
The Cisco GLC-LH-SMD is a 1000 Mbit/s SFP transceiver module with a 1300 nm wavelength. It features an LC fiber optic connector and is compatible with various Cisco products including Catalyst Express 500/520 and ME 3400/3600X/3800X/4900/6500 series. This module ensures reliable data transfer at high speeds, making it ideal for network expansion and connectivity.