Description
The AddOn Cisco® QSFP-40G-LR4-S-20 Compatible TAA 40GBase-LR4 QSFP+ Transceiver delivers reliable 40 Gigabit Ethernet connectivity over single-mode fiber (SMF) for distances up to 20 kilometers. Operating across 1270nm to 1330nm CWDM wavelengths, it utilizes 4 DFB laser channels and a 4-lane CWDM Mux/Demux design for robust, high-speed performance.
Engineered for seamless interoperability, this hot-swappable module is 100% compatible with the original Cisco® transceiver and supports Digital Optical Monitoring (DOM) for real-time diagnostics of key parameters. It complies with IEEE 802.3ba, QSFP+ MSA, and TAA requirements, making it an ideal solution for enterprise, data center, and access network applications. AddOn’s rigorous testing ensures guaranteed performance and reliability, backed by a limited lifetime warranty.
| Specification | Details |
|---|---|
| Brand | AddOn |
| Compatibility | Cisco® QSFP-40G-LR4-S-20 |
| Form Factor | QSFP+ |
| Data Rate | 40 Gbps (4 × 10.3125 Gbps) |
| Wavelength | 1270nm – 1330nm (CWDM, 4 channels) |
| Reach / Distance | Up to 20 km |
| Fiber Type | Single-Mode Fiber (SMF) |
| Connector | LC Duplex |
| Transmitter Type | 4 × CWDM DFB Lasers |
| Receiver Type | 4 × PIN Photodiode |
| Digital Diagnostics (DOM) | Supported |
| Operating Temperature | 0°C to 70°C |
| Power Dissipation | ≤ 3.5 W |
| Supply Voltage | 3.3 V |
| Optical Launch Power (per lane) | -3 dBm to +2.3 dBm |
| Receiver Sensitivity (OMA) | ≤ -11.5 dBm |
| Extinction Ratio | ≥ 3.5 dB |
| Compliance | IEEE 802.3ba, QSFP+ MSA, SFF-8436, TAA, RoHS |
| Applications | 40G Ethernet, Access, Enterprise, Data Center |
| Warranty | Limited Lifetime Warranty |
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
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