The JBX01232 40GBASE-LR4 QSFP+ transceiver is an enterprise-grade optical module engineered for high-capacity network infrastructure requiring extended transmission distances. This module combines performance, reliability, and cost-effectiveness for data center and carrier-class applications. **Key Technical Specifications:** Operating at 40 Gbps data rates, the transceiver utilizes single mode fiber with 9/125 micron specifications, delivering transmission distances up to 10 kilometers without signal degradation. The duplex LC/UPC connectors provide secure, low-loss connections with industry-standard 0.3dB maximum insertion loss. The module's compact QSFP+ form factor (5x4x2 mm) enables dense port configurations in modern switching equipment. **Features & Benefits:** - **Extended Reach:** 10km transmission capability over SMF suitable for campus and metropolitan networks - **Industry Compatibility:** Certified Extreme Networks 40G-QSFP-LR4-1 compatible, replaces multiple OEM part numbers - **Regulatory Compliance:** RoHS/ELV certified, meets IEEE 802.3ba and SFF-8436 standards, Class 1 Laser safety rated - **Reliability:** Metal case construction with laser transmitter, 90-day limited warranty - **Thermal Stability:** Wide operating temperature range (0-70°C/32-158°F) ensures consistent performance **Applications:** - Data center interconnections and campus backbones - Metropolitan area network (MAN) connections - Carrier and ISP backbone infrastructure - Enterprise high-speed network deployments **Compatibility:** This module replaces OEM part numbers including 40G-QSFP-LR4-1, 40G-LR4-QSFP10KM, AA1404001-E6, 40GB-LR4-QSFP, and 10320, providing seamless integration into existing Extreme Networks environments. **Shipping & Support:** Free standard shipping on orders exceeding $99. Ships from Danville, CA and Beaufort, SC locations. Custom brand programming available to meet specific deployment requirements.