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QSFPP-40G-LX4-C
QSFP+ 40GBase-LX4 Optic Duplex MMF Juniper Compatible
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Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
QSFPP-40G-LX4-C is a QSFP transceiver engineered to deliver a 40G data rate over long-range single-mode fiber links using LC connectors. It employs four discrete wavelengths (typically operating in the 1271‑1334 nm band) to multiplex data streams, ensuring robust Ethernet transmission over distances up to 10 km in high-performance network environments.
Designed in a compact QSFP form factor, QSFPP-40G-LX4-C meets the stringent physical and operational demands of modern data centers, enterprise networks, and telecom applications. Its precision engineering and support for standard Ethernet protocols make it an ideal solution for high-density and long-haul optical connectivity deployments.
QSFPP-40G-LX4-C price is is available on request. Get immediate quote.
Request bulk order quote for QSFPP-40G-LX4-C for additional pricing. Browse the full Juniper Compatible Qsfp+ series or explore all Orm products.
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| QSFPP-40G-LX4-C |  JNP-QSFP-40G-LX4-C |  JNP-QSFP-40GE-ER4-C |  JNP-QSFP-40GE-IR4-C |  SRX-QSFP-40G-LR4-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | QSFP | QSFP | QSFP | QSFP |
| Data Rate | 40G | 40G | 40G | 40G | 40G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1271-1334 nm | 1310 nm | 1310 nm | 1310 nm | 1310nm |
| Transmission Distance | Long-Range | Long-Range | Extended-Range | Short-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 10 km | 10 km | 40 km | 2 km | 10 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Fiber | Fiber | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Compatibility | Cisco / Juniper / Huawei / Arista | Juniper | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | QSFPP-40G-LX4-C | JNP-QSFP-40G-LX4-C | JNP-QSFP-40GE-ER4-C | JNP-QSFP-40GE-IR4-C | SRX-QSFP-40G-LR4-C |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Excellent LX4 performance over duplex fiber. Recognized immediately by our Juniper chassis. Reliable 40G throughput with clear signaling and robust build quality. Great value.
Outstanding versatility for our existing MMF plant. This duplex LX4 module provides a stable 40G link with zero issues. High build quality and reliable throughput.
Consistent 40Gbps speeds. Performance matches original specs exactly. A professional and cost-effective solution for our core fiber upgrades where duplex MMF is required.
Reliable 40G transport. Robust construction and clear diagnostic reporting via the management console. Perfect for sites where high speed is needed over simple duplex fiber.
Professional grade LX4 optics. Plug-and-play simplicity and perfect signal integrity. Excellent value for maximizing fiber efficiency without pulling new MPO cables. Recommended.
The QSFPP-40G-LX4-C is a QSFP+ 40GBase-LX4 duplex multimode fiber (MMF) optical transceiver compatible with Juniper equipment.
It uses the Compact Quad Small Form Factor Pluggable Plus (QSFP+) form factor for high-density 40 Gbps connectivity.
This module supports a 40 Gbps data rate using the IEEE 802.3ba 40GBase-LX4 protocol.
It supports duplex 50 µm multimode fiber (OM3) for distances up to 100 meters and OM4 for up to 150 meters.
It uses four separate wavelengths (1271 nm, 1291 nm, 1311 nm, 1331 nm) combined in one QSFP+ package.
Yes, it is hot‐pluggable, allowing insertion or removal without powering down the host device.
It uses LC duplex connectors for fiber connections.
Yes, it is fully compatible and certified for use in Juniper switches and routers.
Yes, it is compliant with the QSFP+ Multi-Source Agreement (MSA) for interoperability.
Typical power consumption is ≤3.5 Watts, ensuring energy-efficient 40 Gbps operation.
It supports an operating temperature range of 0 °C to 70 °C (commercial grade).
Yes, it supports real-time Digital Optical Monitoring (DOM) for parameters like optical power and temperature.
The MTBF is >1,000,000 hours, delivering high reliability in data-center environments.
Simply hot‐plug the QSFP+ module into a compatible port and connect LC duplex fiber; the device auto‐detects and configures it.
It comes with a standard 1-year limited warranty covering manufacturing defects.
No, the 40GBase-LX4 variant is optimized for multimode fiber (OM3/OM4) and is not rated for single-mode.
No special firmware or drivers are needed; it is plug-and-play on all Juniper 40 Gbps QSFP+ ports.
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