Based on this product's specifications, here are some alternatives and similar models
SFP Transceiver Module StarTech.com GLC-LH-SMD Compatible 10 Pack
Summary description:
The StarTech.com GLC-LH-SMD compatible SFP transceiver module offers a reliable 1GbE single mode fiber connection with a maximum data transfer rate of 1250 Mbit/s. It features a 10km range at 1310nm wavelength, ensuring high performance for Cisco Firepower, ASR920, and IE2000 devices. With a compact design (12mm x 58mm x 8mm) and low power consumption (1W), this 10-pack provides excellent value and durability with an MTBF of 200,000 hours.