The JBX01745 is a premium 10GBASE-BX40-U SFP+ optical transceiver module engineered for demanding enterprise and data center networking applications requiring extended transmission distances. This Dell-compatible module (replaces OEM part number 407-BBOP-U40) delivers exceptional performance for long-haul, single-mode fiber deployments. **Key Technical Specifications:** Operating at 10GB data rates, this transceiver utilizes simplex single-mode fiber (9/125 core) with LC/UPC connectors to achieve 40km transmission distances. The BX40-U design enables bidirectional communication over a single fiber strand, optimizing infrastructure efficiency. The rugged metal enclosure houses an advanced laser transmitter, ensuring consistent signal integrity across extended distances. **Compliance & Certification:** Fully qualified to IEEE 802.3ae and SFF standards (SFF-8431, SFF-8472), the JBX01745 meets stringent industry requirements. It carries RoHS/ELV certification per EU directive 2002/95/EC, Class 1 Laser safety certification, TUV approval, and FDA compliance under 21CFR 1040.10—making it suitable for regulated environments. **Performance & Reliability:** With an operating temperature range of 0-70°C (32-158°F), this module performs consistently in varied environmental conditions. The 90-day limited warranty provides peace of mind for critical network deployments. **Applications:** Ideal for metro and long-distance network interconnects, campus backbone infrastructure, disaster recovery links, and service provider deployments. Perfect for organizations upgrading to 10GB connectivity without replacing existing fiber infrastructure. **Custom Programming Available:** Custom brand programming is available for enterprise customers requiring proprietary configurations or specific vendor branding requirements. **Shipping & Support:** Ships free from multiple US locations (Danville, CA and Beaufort, SC) on orders over $99. Manufactured in Vietnam or China with rigorous quality controls ensuring reliability you can depend on.