The JBX01821 10GBASE-LR SFP+ transceiver represents a cost-effective solution for organizations requiring high-performance optical networking without enterprise price premiums. This compact module delivers robust 10 Gigabit Ethernet connectivity, utilizing 1310nm wavelength technology optimized for long-range single-mode fiber transmission. **Technical Excellence**: Engineered to IEEE 802.3ae specifications, this transceiver achieves reliable 10 Gbps data rates over extended distances up to 10 kilometers using standard 9/125 micrometers single-mode fiber. The duplex LC/UPC connector design ensures consistent optical alignment and minimal signal loss, critical for maintaining link integrity in production environments. **Compatibility & Integration**: Direct compatibility with Cisco SFP-10G-LR-I equipment eliminates integration challenges. The module replaces OEM part numbers SFP-10G-LR-I and SFP-10G-LR10-I, providing plug-and-play deployment in existing Cisco infrastructures and supporting equipment. **Reliability & Compliance**: Metal case construction with integrated laser transmitter provides superior EMI shielding and thermal management. Operating across -40 to 85°C temperature ranges ensures consistent performance in diverse data center and network environments. RoHS/ELV compliance and Class 1 Laser certification demonstrate commitment to environmental responsibility and user safety. **Ideal Applications**: Perfect for data center rack-to-rack connections, building interconnects, campus network expansions, and carrier-class deployments where cost and performance balance is essential. **Support & Value**: Ships from strategic US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. Includes 90-day limited warranty with optional custom brand programming available for enterprise requirements.