Description
The Cisco MGBSX1 is a 1000BASE-SX SFP module for Gigabit links over multimode fiber, up to 500 m. It’s a dependable choice for connecting switches across floors, inside buildings and in server rooms. It plugs into any SFP port on Cisco Business switches and is hot-swappable, so you can install or replace it without powering down the switch. It’s backed by Cisco’s 5-year limited hardware warranty.
Key features
- Gigabit Ethernet over multimode fiber, up to 500 m
- Duplex LC connector, 850 nm wavelength
- Hot-swappable, so the network keeps running while you install it
- Low power use: 1 W max
- Works with Cisco 110, 220, 250, 350, 350X and 550X Series switches
| Spec | Value |
|---|---|
| Part number | MGBSX1 |
| Type | 1000BASE-SX SFP (Mini-GBIC) |
| Speed | Gigabit Ethernet |
| Fiber type | Multimode fiber (MMF) |
| Connector | Duplex LC |
| Wavelength | 850 nm |
| Max distance | Up to 500 m |
| Output power | –9.5 to –4 dBm |
| Receiver sensitivity | –20 dBm (typ.) |
| Power consumption | 1 W max |
| Operating temperature | 0°C to 70°C |
| Dimensions | 13.4 × 8.5 × 56.5 mm |
| Hot-swappable | Yes |
| Compatible switches | Cisco 110, 220, 250, 350, 350X, 550X Series |










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