Cisco MGBSX1 - Gigabit Ethernet SX Mini-GBIC SFP Transceiver

Elevate your network performance with the Cisco MGBSX1, a compact Gigabit Ethernet SX Mini-GBIC SFP transceiver designed to deliver reliable, high-speed connectivity in demanding enterprise environments. This 1000BASE-SX module is the ideal plug-and-play solution for Cisco switches and routers, enabling seamless uplinks and flexible fiber deployments in data centers, campus networks, and branch offices. Built for durability and ease of use, the MGBSX1 maximizes uptime while simplifying cabling and maintenance for IT teams.

• 1 Gbps full-duplex data rate with simple, cost-effective fiber upgrades for existing networks.
• 850 nm VCSEL technology for fast signaling over multi-mode fiber and stable link performance.
• LC duplex connector for reliable, widely supported fiber terminations and straightforward cable management.
• Small Form-factor Pluggable (SFP) / Mini-GBIC design enables dense port deployments and hot-swappable replacement in 1U or 2U racks.
• Enterprise-grade reliability with Cisco-quality assurance, RoHS compliance, and proven compatibility across Cisco devices and 1000BASE-SX ports on supported platforms.

Technical Details of Cisco MGBSX1

• Product type: 1000BASE-SX Mini-GBIC SFP Transceiver
• Data rate: 1.0 Gbps
• Wavelength: 850 nm
• Connector: LC duplex
• Fiber type: Multi-mode fiber (MMF)
• Distance: Up to 550 meters on standard MMF (distance varies with fiber type and quality)
• Form factor: SFP (Mini-GBIC)
• Compatibility: Designed for Cisco devices; broadly compatible with 1000BASE-SX ports on compliant networks
• RoHS compliant

how to install Cisco MGBSX1

• Power down the switch or router before removing or inserting a transceiver to prevent damage to the port or module.
• Remove any existing transceiver from the target SFP slot, if applicable, by releasing the retention latch.
• Gently insert the MGBSX1 into the SFP slot until the module is firmly seated and the latch engages securely.
• Attach a compatible LC duplex multi-mode fiber patch cable, ensuring the transmit and receive fibers are correctly aligned.
• Power on the device, then verify link status through the port LEDs or management interface, confirming a stable 1 Gbps connection and proper duplex settings.

Frequently asked questions

• What is the Cisco MGBSX1? The MGBSX1 is a Gigabit Ethernet SX Mini-GBIC SFP transceiver that enables 1000BASE-SX connections over multi‑mode fiber for Cisco network devices.
• What type of fiber does it use and how far can it reach? It uses multi-mode fiber with 850 nm signaling and can reach up to about 550 meters on standard MMF cables; actual distance depends on fiber grade (OM3/OM4, etc.) and installation conditions.
• Is the MGBSX1 hot-swappable? Yes. The MGBSX1 is designed to be hot-swappable, allowing you to replace or upgrade transceivers without powering down the device in many supported environments.
• Is it compatible with non-Cisco devices? While the module is designed for Cisco platforms and 1000BASE-SX ports, 1000BASE-SX modules can be used with other vendors’ ports that support standard SFP transceivers; however, compatibility can vary by vendor and device, so verify with your equipment vendor.
• What are the key benefits of using the MGBSX1? The MGBSX1 offers reliable Gigabit throughput, easy installation, dense port density in racks, long-term reliability, and seamless integration with Cisco networking gear for scalable network growth.