The JBX02130 1000BASE-BX10-U SFP transceiver represents a cost-effective solution for organizations seeking reliable optical connectivity without compromising on performance or compatibility. As a direct replacement for Cisco's GLC-BX-U-I module, this transceiver integrates seamlessly into existing Cisco infrastructure while maintaining full functional equivalence. **Key Technical Specifications:** This simplex transceiver operates at 1GB (1000BASE-BX10-U) data rates and supports transmission distances up to 10 kilometers over singlemode fiber with a 9/125 micron core. The dual-wavelength design utilizes 1310nm for transmission and 1490nm for reception on a single fiber strand, enabling efficient bidirectional communication through wavelength division multiplexing. The LC/UPC connector provides superior optical performance with minimal insertion loss and return loss characteristics. **Performance & Reliability:** Engineered with a metal case housing and precision laser transmitter, the JBX02130 delivers consistent performance across demanding operating conditions. The -40°C to 85°C operating temperature range accommodates both indoor data centers and field deployments. IEEE 802.3ah compliance ensures interoperability with standards-based networking equipment. **Compliance & Safety:** This module exceeds industry safety and environmental standards. RoHS/ELV directive compliance means reduced hazardous substances, supporting sustainable IT practices. Class 1 laser certification and TUV/UL/FDA approval (21CFR 1040.10) guarantee safe operation in professional environments. **Custom Programming Available:** Custom brand programming options allow OEM and reseller partners to white-label modules for their brand specifications. **Warranty & Support:** 90-day limited warranty provides peace of mind. Free standard shipping on orders exceeding $99 with distribution from Danville, CA and Beaufort, SC locations ensures quick delivery.