Based on this product's specifications, here are some alternatives and similar models
SFP Transceiver Module Intellinet GLC-BX-U Equivalent
Summary description:
The Intellinet Gigabit Fiber WDM Bi-Directional SFP transceiver module offers a data transfer rate of 1000 Mbit/s over a single-mode port with a range of up to 10 km. It operates at RX 1550 nm and TX 1310 nm wavelengths, is MSA compliant, and is equivalent to Cisco GLC-BX-U. With a compact design (14 mm x 57 mm x 12 mm) and low power consumption (1 W), it is ideal for efficient networking. Backed by a three-year warranty, this module is FCC Class A and CE certified.