
1000BASE-SX GBIC transceiver, 850nm, up to 550m over multimode fibre, for Cisco Catalyst switches.
The Cisco WS-G5484 is a 1000BASE-SX GBIC transceiver providing Gigabit Ethernet connectivity over multimode fibre. It uses an 850nm VCSEL laser transmitter and duplex SC connectors, supporting link distances up to 550 metres over MMF.
The module operates in the 1.063 to 1.25 Gbps range, covering both Gigabit Ethernet (1.25 Gbps) and 1000BASE-SX fibre channel applications, and runs across the standard 0 to 70 degree C operating range. It fits Cisco Catalyst switches and other Cisco platforms that accept GBIC-format optical modules, and remains a common choice for short-reach data centre and campus fibre links.
It’s a good match for organisations maintaining an existing Cisco Catalyst estate who need matching hardware for expansion, redundancy or like-for-like replacement. Tech-Star (UK-based, shipped worldwide) checks every transceiver before it ships. Get in touch to confirm compatibility with your switch.

| Platform | Cisco 870 series routers |
|---|---|
| Manufacturer | CISCO |

| Platform | ISR 4000 Series |
|---|---|
| Manufacturer | CISCO |

| Platform | Cisco 8800 Series |
|---|---|
| Manufacturer | CISCO |

| Platform | Aironet 1560 Series |
|---|---|
| Manufacturer | CISCO |

| Manufacturer | CISCO |
|---|

| Platform | Cisco 2600XM Series |
|---|---|
| Manufacturer | CISCO |
| Key Features | 1000BASE-SX Gigabit Ethernet; 850nm VCSEL laser; duplex SC connector; up to 550m over MMF |
|---|---|
| Applications | Short-reach data centre and campus fibre uplinks; Gigabit Ethernet switch-to-switch links |
| Compatibility | Cisco Catalyst switches and other GBIC-slot Cisco platforms |
| Specifications | 1.25 Gbps data rate; 850nm wavelength; multimode fibre up to 550m; 0-70C operating range |
| Platform | Cisco Catalyst (GBIC slot) |
| Manufacturer | CISCO |
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