The JBX01962 100BASE-BX20-D SFP transceiver is a professional-grade optical module engineered for organizations requiring extended-reach fiber optic connectivity. This transceiver delivers exceptional performance across 20 kilometers of singlemode fiber infrastructure, providing a cost-effective solution for bridging network segments across campuses, between buildings, or between colocation facilities. **Technical Specifications:** Operating at 100MB data rates, this module utilizes 9/125 singlemode fiber for superior signal integrity and minimal attenuation over distance. The Simplex LC/UPC connection ensures secure, reliable fiber termination while minimizing insertion loss. Unlike standard short-reach transceivers limited to 2-3km, the BX20-D variant extends your network reach to 20km, reducing the need for intermediate repeaters or signal regeneration. **Compatibility & Integration:** Designed as a direct replacement for Brocade's E1MG-100BXU, the JBX01962 integrates seamlessly into existing Brocade switch environments without requiring firmware modifications or configuration changes. This plug-and-play compatibility ensures rapid deployment and minimal downtime during upgrades or expansions. **Build Quality & Safety:** Constructed with a robust metal case and precision laser transmitter, this module withstands industrial environments while maintaining optical performance. It meets rigorous international standards including RoHS/ELV compliance, Class 1 laser safety certification, and qualifies to SFF-8472 extended-reach BiDi specifications exceeding IEEE 802.3ah requirements. **Operating Conditions:** Rated for 0-70°C operation, the transceiver performs reliably in both indoor data centers and outdoor equipment enclosures. Its thermal stability ensures consistent signal quality regardless of ambient temperature fluctuations. **Value Proposition:** With free standard shipping on orders exceeding $99 and custom brand programming options available, this transceiver offers enterprise-grade performance at competitive pricing. The 90-day limited warranty provides confidence in your network infrastructure investment.