The JBX01788 10GBASE-ER SFP+ transceiver module delivers professional-grade optical connectivity for enterprise and service provider networks requiring extended transmission distances without intermediate signal regeneration. Engineered specifically for long-haul applications, this module combines cutting-edge optical technology with proven reliability. **Technical Specifications & Performance:** Operating at 10 Gigabit Ethernet speeds per IEEE 802.3ae standards, the JBX01788 utilizes 1550nm Extended-Reach (ER) wavelength technology optimized for maximum distance transmission. The module achieves impressive 40-kilometer transmission capability over singlemode fiber infrastructure, making it ideal for metropolitan and regional network interconnections. The duplex LC/UPC fiber connectors provide industry-standard connectivity with superior optical performance and consistent insertion loss characteristics. **Compatibility & Integration:** This transceiver is explicitly designed as a Cisco MA-SFP-10GB-ER compatible module, ensuring seamless integration with existing Cisco infrastructure without configuration complications. The SFP+ form factor enables hot-swappable installation in compatible network equipment, minimizing downtime during upgrades or replacements. **Build Quality & Reliability:** Manufactured with precision metal casing and incorporating advanced laser transmitter technology, the JBX01788 demonstrates exceptional durability in demanding network environments. The module maintains stable performance across the extended operating temperature range of 0 to 70°C (32 to 158°F), accommodating both climate-controlled data centers and field deployments. **Safety & Compliance:** The transceiver holds comprehensive safety certifications including Class 1 Laser designation, TUV, UL, and FDA 21CFR 1040.10 compliance, ensuring safe operation in professional environments. RoHS and ELV directive compliance confirms environmental responsibility without compromising performance. All standards align with IEEE 802.3ae, SFF-8431, and SFF-8472 specifications. **Value & Support:** Backed by a 90-day limited warranty and available with custom brand programming, the JBX01788 provides cost-effective performance for organizations seeking reliable optical transceiver solutions. Free standard shipping on qualifying orders enhances overall value, with convenient fulfillment from multiple domestic locations ensuring rapid delivery.