The JBX01449 is a premium 100GBASE-LR4 QSFP28 optical transceiver engineered for demanding enterprise network environments. This module delivers 100 Gigabit per second data rates over single-mode fiber spanning up to 10 kilometers, making it ideal for campus interconnects, data center uplinks, and metropolitan area networks. **Key Features:** - 100GB data rate with IEEE 802.3bm qualification - 10km reach over 9/125µm single-mode fiber - Duplex LC/UPC connector design for reliable fiber connections - QSFP28 form factor compliant with MSA and SFF-8665 standards - Precision laser transmitter in metal protective case - Wide operating temperature range: 0-70°C (32-158°F) **Compatibility & Integration:** Fully compatible with Cisco systems, this transceiver directly replaces Cisco QSFP-100G-LR4-S and MA-QSFP-100G-LR4 modules. Custom brand programming is available for OEM requirements, supporting flexible deployment scenarios. **Safety & Compliance:** Certified as Class 1 laser equipment with FDA 21CFR 1040.10 compliance, TUV and UL approvals. RoHS and EU directive 2002/95/EC certified, ensuring environmental responsibility and safety standards adherence. **Technical Specifications:** - Model: LR4 10km SMF - Fiber Core: 9/125 Single-mode - Connector Type: Duplex LC/UPC - Dimensions: 5.0" L x 4.0" W x 2.0" H - Material: Metal case with laser transmitter - Warranty: 90-day limited warranty - Manufactured in Vietnam and China **Ideal Applications:** Perfect for telecommunications carriers, data center operators, and enterprise networks requiring high-capacity, long-distance optical connectivity with proven Cisco compatibility and reliability.