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| PartNumber | FTL4C1QE1C | FTL4C1QL1C | FTL4C1QE2C |
| Description | Fiber Optic Transmitters, Receivers, Transceivers 4x10G CWDM,4x10G PIN QSFP+ single mode | Fiber Optic Transmitters, Receivers, Transceivers XCVR,QSFP, 2km, 40GE Lite, 4x10G CWDM DFB, PIN, Limiting, XLPPI electrical interface, LC, ROHS, 3.3V, 3.5W, 0/70 C operation | Fiber Optic Transmitters, Receivers, Transceivers TRANSCEIVER QSFP, 10 |
| Manufacturer | Finisar | Finisar | Finisar |
| Product Category | Fiber Optic Transmitters, Receivers, Transceivers | Fiber Optic Transmitters, Receivers, Transceivers | Fiber Optic Transmitters, Receivers, Transceivers |
| RoHS | Y | Y | Y |
| Product | Transceivers | Transceivers | Transceivers |
| Data Rate | 41.2 Gb/s | 40 Gb/s | 10.3 Gb/s |
| Wavelength | 1310 nm | 1310 nm | 1310 nm |
| Fiber Type | Singlemode | Singlemode | Singlemode |
| Operating Supply Voltage | 3.3 V | 3.3 V | 3.1 V to 3.47 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Form Factor, or Case Style | QSFP | QSFP | QSFP |
| Application | Ethernet | Ethernet | Ethernet |
| Connector Type | LC | LC | LC |
| Description/Function | Transceiver Module | - | - |
| Height | 8.5 mm | - | - |
| Length | 121.9 mm | - | - |
| Width | 18.35 mm | - | - |
| Brand | Finisar | Finisar | Finisar |
| Mounting Style | Panel Mount | Pluggable | Pluggable |
| Peak Wavelength | 1337.5 nm | - | - |
| Pd Power Dissipation | 3.5 W | - | - |
| Product Type | Fiber Optic Transmitters, Receivers, Transceivers | Fiber Optic Transmitters, Receivers, Transceivers | Fiber Optic Transmitters, Receivers, Transceivers |
| Factory Pack Quantity | 2 | 2 | 2 |
| Subcategory | Fiber Optic | Fiber Optic | Fiber Optic |
| Transmission Distance | 10 km | - | - |
| Package / Case | - | - | 121.9 mm x 18.35 mm x 8.5 mm |
