Based on this product's specifications, here are some alternatives and similar models
SFP Fiber Optic Transceiver StarTech compatible for Cisco 1000BASE-SX 1GbE LC 550m 850nm DDM
Summary description:
SFP fiber optic transceiver compatible with Cisco, supporting 1000BASE-SX multimode (MMF) links at 1GbE. LC connector, 850 nm wavelength, up to 550 m reach, digital diagnostic monitoring (DDM) and SFP interface. Maximum data rate 1250 Mbit/s, typical power 1 W, compact silver module for Cisco IE3400/IE3300/IE3200 use.