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Description of your requirements:
| MPN | DS-SFP-FC4G-MR | 
| Empowerfiber PN | DS-SFP-FC4G-MR_tr2574 | 
| Form Factor | SFP | 
| Max Data Rate | 4.25Gbps | 
| Wavelength | 1310nm | 
| Interface | LC duplex | 
| Max Distance | 4km | 
| Optical Components | FP 1310nm | 
| Cable Type | SMF | 
| DDM support | Yes | 
| Working Temperature Range | 0 to 70°C (32 to 158°F) | 
| Compatible brand | Cisco |