AddOn Cisco® QSFP-40G-SR4-LC Compatible 40GBase-LX4 QSFP+ Transceiver (1270–1330 nm, 150 m, LC, DOM, TAA)

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Add-OnSKU: QSFP-40G-SR4-LC-AO
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Sale price$2,284.99 Regular price$3,600.00

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In stock (192 units), ready to be shipped

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Description

The AddOn Cisco® QSFP-40G-SR4-LC-AO is a high-performance, cost-effective QSFP+ optical transceiver designed for 40 Gigabit Ethernet applications in enterprise, access, and data center networks. Fully compatible with Cisco® QSFP-40G-LX4 modules, it provides 40GBase-LX4 throughput over single-mode fiber (SMF) at distances of up to 150 m using wavelengths from 1270 nm to 1330 nm via a duplex LC connector.

Engineered for reliability and seamless deployment, this hot-pluggable transceiver supports Digital Optical Monitoring (DOM) for real-time diagnostics and meets SFF-8436 standards. It is TAA-compliant, RoHS-certified, and lead-free, ensuring adherence to strict environmental and trade regulations. Each unit undergoes comprehensive application and traffic testing for guaranteed interoperability and performance matching OEM standards. Ideal for high-speed aggregation, server interconnects, and cloud infrastructure, it delivers superior signal integrity, low power consumption, and robust ESD protection, backed by AddOn’s limited lifetime warranty.

Specification Details
Brand AddOn
Model / SKU QSFP-40G-SR4-LC-AO
Compatibility Cisco® QSFP-40G-LX4
Form Factor QSFP+
Data Rate 40 Gbps (4 × 10.3125 Gb/s lanes)
Wavelength Range 1270 nm – 1330 nm
Connector Type Duplex LC
Fiber Type SMF (Single-Mode Fiber)
Maximum Reach Up to 150 m (OM3 MMF) / 2 km (SMF)
Digital Optical Monitoring (DOM) Supported
Compliance Standards SFF-8436, IEEE 802.3ba
Operating Temperature 0 °C – 70 °C
Storage Temperature -40 °C – 85 °C
Power Supply Voltage 3.135 V – 3.465 V
Power Consumption ≤ 3.5 W
Supply Current 1.1 A (typical)
Launch Power (MMF per lane) -5.0 dBm to 3.5 dBm
Receiver Sensitivity (OMA, MMF) ≤ -10.5 dBm
Extinction Ratio ≥ 3.5 dB
ESD Protection Excellent
Hot Pluggable Yes
TAA Compliance Yes
RoHS Compliance Yes
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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