The JBX01228 40GBASE-LR4 QSFP+ transceiver represents cutting-edge optical networking technology designed for demanding enterprise environments. This high-performance module enables seamless 40Gigabit Ethernet connectivity over extended distances, making it ideal for data center interconnects, campus networks, and long-distance fiber backbone implementations. **Technical Specifications:** This transceiver operates at 40Gbps using the proven LR4 wavelength division multiplexing (WDM) technology, transmitting data over singlemode fiber at distances up to 10 kilometers. The 9/125 micron singlemode core ensures minimal signal degradation and maximum transmission reliability. With duplex LC/UPC connectors, the module provides industry-standard fiber connectivity that maintains low insertion loss and excellent return loss characteristics. **Compatibility & Integration:** Designed specifically for Dell networking environments, the JBX01228 directly replaces OEM part numbers 407-BBGL and 407-BBGN, ensuring seamless integration with existing Dell infrastructure. This compatibility extends to Dell PowerEdge servers, N-Series switches, and related networking equipment, eliminating compatibility concerns during upgrades or replacements. **Quality & Certification:** The transceiver meets rigorous IEEE 802.3ba specifications and SFF-8436 industry standards, guaranteeing consistent performance across deployments. RoHS and ELV directive compliance (EU 2002/95/EC) ensures environmental responsibility. Comprehensive safety certifications including Class 1 Laser designation, TÜV, UL, and FDA 21CFR 1040.10 approval demonstrate adherence to international safety standards. **Operational Excellence:** Manufactured with premium materials including a metal case and precision laser transmitter, this transceiver delivers reliable performance across the 0-70°C operating temperature range. The compact 5x4x2 inch dimensions fit seamlessly into standard networking equipment without requiring modifications or special mounting considerations. **Ordering & Support:** Enjoy free standard shipping on orders over $99 with fast shipping from convenient U.S. locations (Danville, CA or Beaufort, SC). Custom brand programming is available for OEM requirements. Each transceiver includes a 90-day limited warranty, and technical support is available for installation and troubleshooting assistance. Compatible with standard fiber optic test equipment for verification and troubleshooting.