The JBX01207 40GBASE-ER4 QSFP+ Transceiver is a premium optical networking solution designed for demanding enterprise and carrier-grade applications requiring extended-reach singlemode fiber connectivity. With a maximum transmission distance of 40 kilometers over 9/125 singlemode fiber, this transceiver delivers consistent 40GB data rates while maintaining signal integrity across long-haul network spans. Key Technical Specifications: This module operates on IEEE 802.3ba standards and complies with SFF-8436 form factor specifications. The duplex LC/UPC connector architecture provides reliable, low-loss connections with minimal signal degradation. The 9/125 singlemode fiber core ensures optimal performance for long-distance deployments, while the compact 5x4x2 inch form factor integrates seamlessly into standard QSFP+ equipped network switches and routers. Performance & Reliability: The transceiver features a precision laser transmitter enclosed in a rugged metal case, certified as Class 1 laser equipment per FDA 21CFR 1040.10 standards. Operating temperature range of 0-70°C accommodates diverse deployment environments from data centers to outdoor installations. Built-in Forward Error Correction (FEC) enhances signal reliability over extended distances, critical for maintaining network uptime in mission-critical applications. Compatibility & Integration: Designed as a drop-in replacement for Juniper JNP-QSFP-40GE-ER4 modules, this transceiver ensures seamless integration into existing Juniper network infrastructure. Custom brand programming options support OEM requirements for white-label deployments and private labeling initiatives. Compliance & Certification: Fully RoHS and ELV compliant per EU Directive 2002/95/EC, with comprehensive safety certifications including UL, TUV, and FDA approval. Manufacturing in Vietnam and China ensures cost-effective procurement without compromising quality standards. Warranty & Support: Backed by a 90-day limited warranty with free standard shipping on orders exceeding $99, shipped from distribution centers in Danville, CA and Beaufort, SC for rapid deployment.