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2.5.3. Transceiver Types and Connectors
Transceivers (pluggable optics):
| Form Factor | Speed | Notes |
|---|---|---|
| SFP | 1 Gbps | Small form-factor pluggable |
| SFP+ | 10 Gbps | Enhanced SFP |
| QSFP | 40 Gbps | Quad SFP (4 channels) |
| QSFP+/QSFP28 | 40/100 Gbps | High-speed datacenter |
Connector Types:
| Connector | Media | Notes |
|---|---|---|
| RJ-45 | Copper Ethernet | 8-pin modular, most common |
| RJ-11 | Telephone | 4/6-pin, smaller than RJ-45 |
| LC | Fiber | Small, latch connector (most common in datacenter) |
| SC | Fiber | Square, push-pull |
| ST | Fiber | Round, bayonet twist-lock (legacy) |
| MPO/MTP | Fiber | Multi-fiber (12/24 fibers) for high-density |
| F-type | Coaxial | Cable TV, screw-on |
| BNC | Coaxial | Twist-lock (legacy networks, test equipment) |
Written byAlvin Varughese
Founder•15 professional certifications