The JBX02175 1000BASE-BX40-D SFP Transceiver Module is engineered for telecommunications professionals and network administrators requiring reliable extended-reach fiber connectivity. This optical transceiver module represents a cost-effective solution for expanding network infrastructure without requiring expensive new equipment purchases. **Key Technical Specifications:** Operating at 1Gbps over single-mode fiber, this transceiver achieves impressive 40km transmission distances using bidirectional technology with 1490/1310nm wavelengths. The 9/125 micron fiber core ensures compatibility with standard single-mode fiber infrastructure. Its simplex LC/UPC connector provides secure, low-loss connections with UPC polish quality. **Compatibility & Integration:** Direct replacement for Fortinet FN-TRAN-SFP-1BD40 modules, ensuring plug-and-play compatibility with Fortinet networking equipment. Custom brand programming is available, allowing integration into OEM solutions. **Performance & Reliability:** Qualified to SFF-8472 specifications and surpassing IEEE 802.3ah standards, this module delivers consistent performance in demanding industrial applications. The extended operating temperature range (-40°C to 85°C) accommodates harsh environmental conditions. **Compliance & Safety:** Fully RoHS/ELV compliant (EU directive 2002/95/EC) with comprehensive safety certifications including Class 1 Laser, TÜV, and FDA approval (21CFR 1040.10). Metal case construction provides electromagnetic shielding and durability. **Practical Applications:** Ideal for metropolitan area networks (MANs), long-distance campus networks, and industrial IoT deployments. Perfect for organizations needing extended network reach without fiber infrastructure upgrades. **Included Support:** 90-day limited warranty covers manufacturing defects. Free standard shipping on orders over $99, with convenient shipping locations in California and South Carolina ensuring rapid delivery.