United States$5,000,000+
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Andrew Whitman
4
Short reach 40G optic worked flawlessly on multimode fiber.
QSFPP-40GBASE-SR4
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ONE 40GBASE-SR4 QFP+ PLUGGABLE MODULE
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Name:
QSFPP-40GBASE-SR4
- Description:
- ONE 40GBASE-SR4 QFP+ PLUGGABLE MODULE
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Juniper
- GTIN:
- 98379112028
- Condition:
- Warranty:
- 3
- List Price:
$4,990.00
- Price:
$3,142.0037% off
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1
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QSFPP-40GBASE-SR4 Overview
QSFPP-40GBASE-SR4 is a QSFP transceiver that delivers a 40G data rate using MPO connectors for short-range optical transmission, supporting Ethernet protocols. Designed with a compact QSFP form factor and precise physical dimensions, it is engineered for high-density deployments in data centers, enterprise networks, and telecom environments.
This module adheres to industry optical interface standards with optimized power consumption and thermal performance. Its robust construction and reliable performance make it an ideal solution for short-reach multi-mode fiber interconnections in modern high-speed network infrastructures.
QSFPP-40GBASE-SR4 price is $3,142.00, a 37% saving from the Juniper list price of $4,990.00. QSFPP-40GBASE-SR4 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFPP-40GBASE-SR4 for additional pricing. Browse the full category range or explore all Juniper products.
QSFPP-40GBASE-SR4 Specifications
- Product Type
- Transceiver
- Form Factor
- QSFP
- Data Rate
- 40G
- Connector Type
- MPO
- Wavelength
- 850 nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 150 meters
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- 3.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Product Name
- QSFPP-40GBASE-SR4
- Height
- 0.66 inches
- Width
- 1.18 inches
- Depth
- 0.42 inches
- Weight
- 0.16 lbs
QSFPP-40GBASE-SR4 Use Case
High-Density Data Center Spine-Leaf Aggregation with QSFPP-40GBASE-SR4-ONE
In a hyperscale data center environment, network architects deploy the QSFPP-40GBASE-SR4-ONE module on spine and leaf switches to aggregate sixteen 10 GbE links into four 40 GbE trunks over multimode OM3/OM4 fiber using a single QSFP+ port. This configuration maximizes port density, simplifies cabling with MPO/MTP connectors, and delivers up to 160 Gbps of bi-directional throughput per uplink bay, reducing power consumption by 40% and lowering per-Gb cost by 30% compared to discrete 10 GbE transceivers.
Low-Latency HPC Cluster Interconnect for Scientific Computing
A leading research university upgrades its high-performance computing (HPC) cluster interconnect with QSFPP-40GBASE-SR4-ONE modules to connect compute nodes and storage arrays across 100-meter multimode fiber links. The module’s four-lane parallel optics design achieves sub-2 µs port latency and 40 Gbps full-duplex bandwidth, boosting data ingestion and job throughput by 50%, enabling real-time analytics and large-scale simulation workloads with consistent low-latency performance.
Enterprise Campus Backbone Modernization with 40G Fiber
A multinational enterprise refreshes its campus network backbone by replacing legacy 10 GbE fiber uplinks with QSFPP-40GBASE-SR4-ONE QSFP+ transceivers on distribution switches, spanning multiple buildings over existing OM4 cabling. This upgrade quadruples backbone capacity, supports converged voice, video, and data traffic without rewiring, and delivers a 4× bandwidth increase per link while maintaining compatibility with existing MPO/MTP infrastructure—future-proofing the network for projected 5-year growth.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QSFPP-40GBASE-SR4 |  CFP2-100G-ER4-D |  SFP-GE-TDM-DS3 |  SRX-SFPP-10G-LR |  SFP-OC12-IR | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | CFP2 | SFP | SFP+ | SFP |
| Data Rate | 40G | 100G | DS3 | 10G | OC-12 (622Mbps) |
| Connector Type | MPO | LC Duplex | LC | LC | LC |
| Wavelength | 850 nm | 1295-1335 nm | 1310nm | 1310 nm | 1310nm |
| Transmission Distance | Short-Range | Extended-Range | Long-Range | Long-Range | Long-Range |
| Fiber Type | Multi-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 150 meters | 40 km | 80 km | 10 km | 10 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet, TDM DS3 | Ethernet | SONET / Ethernet |
| Network Interface | Fiber | Ethernet | Fiber | Fiber | Fiber |
| Power Consumption | 3.5W | 17 W | N/A | 1.5 W | 1.5W |
| 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 |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Juniper | Cisco / Juniper / Huawei / Arista |
| Product Name | QSFPP-40GBASE-SR4 | CFP2-100G-ER4-D | SFP-GE-TDM-DS3 | SRX-SFPP-10G-LR | SFP-OC12-IR |
| Height | 0.66 inches | N/A | 0.65 inches | 0.66 inches | 0.28 inches |
| Width | 1.18 inches | N/A | 1.0 inches | 0.98 inches | 0.66 inches |
| Depth | 0.42 inches | N/A | 0.5 inches | 1.20 inches | 1.87 inches |
| Weight | 0.16 lbs | N/A | 0.1 lbs | 0.12 lbs | 0.1 lbs |
Reviews & Ratings
M
Martin Doyle
4
Ideal for data center interconnects.
S
Simon Clarke
5
Low latency and stable lanes.
E
Edward Field
4
Plug and play installation.
V
Victor Lane
5
Consistent performance.
Questions & Answers
What is the QSFPP-40GBASE-SR4 QSFP+ pluggable module?
The QSFPP-40GBASE-SR4 is a 40 Gigabit Ethernet QSFP+ pluggable transceiver designed for high-speed multimode fiber links up to 100 meters over OM4 and 70 meters over OM3.
Which data rate does the QSFPP-40GBASE-SR4 support?
This module supports a fixed data rate of 40 Gbps (10 Gbps per lane) for low-latency, high-bandwidth network applications.
What fiber types and distances are supported by this module?
The QSFPP-40GBASE-SR4 operates on OM3 multimode fiber up to 70 meters and OM4 multimode fiber up to 100 meters using an MPO/MTP connector.
Which connector interface does the QSFPP-40GBASE-SR4 use?
It uses a female MPO/MTP 12-fiber parallel connector for easy field termination and high-density connectivity.
Is the QSFPP-40GBASE-SR4 hot-swappable?
Yes, the QSFP+ module is fully hot-swappable, allowing plug-and-play upgrades without powering down network equipment.
What wavelength does the 40GBASE-SR4 module transmit on?
This module transmits across four lanes at an 850 nm LED wavelength, optimized for multimode fiber performance.
Can I use the QSFPP-40GBASE-SR4 for breakout to 4×10 Gbps?
Yes, it supports a 4×10 Gbps breakout configuration when paired with compatible QSFP+ to 4×LC breakout cables.
Which switches and routers are compatible with this QSFP+ module?
It is universally compatible with all QSFP+ slots supporting 40GBASE-SR4 in major brands including Cisco, Juniper, Arista, HP, Dell and Huawei.
What is the power consumption of the QSFPP-40GBASE-SR4?
Typical power consumption is less than 1.5 W, meeting industry standards for energy-efficient network optics.
What temperature range does this module operate within?
The module supports an operating temperature range of 0 °C to 70 °C (32 °F to 158 °F) for standard commercial environments.
Is the QSFPP-40GBASE-SR4 RoHS compliant?
Yes, the module meets RoHS (Restriction of Hazardous Substances) standards for lead-free and environmentally friendly design.
How do I install the QSFP+ module into my switch?
Align the module’s pull-tab with the switch port, gently insert until it clicks, then verify link status via your switch’s diagnostics.
Does the QSFPP-40GBASE-SR4 require calibration or coding?
No calibration or proprietary coding is required; the module uses standard SFF-8436 MSA compliant firmware for plug-and-play operation.
What diagnostic features are available on this module?
It supports Digital Diagnostic Monitoring (DDM) for real-time monitoring of temperature, voltage, bias current and optical power.
What warranty and support are provided with the module?
The QSFPP-40GBASE-SR4 comes with a lifetime warranty and free technical support from our global service team.
How is the performance of the QSFPP-40GBASE-SR4 tested?
Each module undergoes rigorous 100% factory testing for bit error rate (BER), optical power, insertion loss and DDM accuracy.