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QSFPP-40GE-SR4-B
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- 10-pack QSFP+ 40GE SR Bundle
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QSFPP-40GE-SR4-B Overview
QSFPP-40GE-SR4-B is a QSFP optical transceiver engineered to provide 40G Ethernet connectivity using SR4 technology for short-range transmission. It leverages multimode fiber with an MPO connector configuration and operates at an 850 nm wavelength, making it ideal for high-speed data center and enterprise network applications.
This compact module meets rigorous industry standards with precise physical dimensions for seamless integration into telecom and networking systems. Designed to support Ethernet protocols, the QSFPP-40GE-SR4-B delivers reliable performance in environments demanding efficient, short-range optical communications.
What is the price of QSFPP-40GE-SR4-B?
Pricing for QSFPP-40GE-SR4-B is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for QSFPP-40GE-SR4-B.
Explore more options from Transceivers or explore other Juniper products.
QSFPP-40GE-SR4-B 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 | 100 m |
| Supported Protocols | Ethernet |
| Network Interface | Fiber |
| Power Consumption | 4W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista |
| Product Name | QSFPP-40GE-SR4-B |
| Height | 0.55 inches |
| Width | 0.55 inches |
| Depth | 1.30 inches |
| Weight | 0.11 lbs |
QSFPP-40GE-SR4-B Use Case
Leaf-Spine Data Center Fabric Expansion
In a hyperscale leaf-spine data center rollout, the QSFPP-40GE-SR4-B-10-pack QSFP+ 40GE SR Bundle provides high-density multimode fiber links between leaf and spine switches, leveraging MPO/MTP connectivity for seamless 4×10GE breakout or 40GE aggregation. Benefit: Delivers sub-microsecond latency, 4× the throughput of legacy 10GE, and up to 40% lower cost per gigabit while simplifying cabling and accelerating time-to-service.
High-Performance Computing and AI/ML Cluster Acceleration
Research and HPC environments interconnect GPU and CPU nodes over OM3/OM4 fiber using the QSFPP-40GE-SR4-B-10-pack QSFP+ 40GE SR Bundle to sustain full 40GbE bandwidth for large data transfers and distributed training jobs. Benefit: Reduces model training and simulation time by up to 35%, ensures deterministic throughput for data-intensive workloads, and maximizes cluster utilization.
Enterprise Campus Backbone Modernization
Global enterprise campuses upgrading their distribution and core layers deploy the QSFPP-40GE-SR4-B-10-pack QSFP+ 40GE SR Bundle to replace legacy 10GE uplinks, supporting unified communications, video conferencing and cloud-native applications. Benefit: Provides 4× bandwidth with 25% lower power consumption, consolidates fiber infrastructure, and future-proofs the network for IoT and scalable cloud services.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Connector Type | LC | LC Duplex | MPO | MPO | LC |
| Data Rate | 10G | 40G | 40G | 40G | 10G |
| Depth | N/A | N/A | 0.42 inches | 1.30 inches | N/A |
| Fiber Type | Single-mode | Single-mode | Multi-mode | Multi-mode | Single-mode |
| Form Factor | XFP | QSFP+ | QSFP | QSFP | QSFP+ |
| Height | N/A | N/A | 0.66 inches | 0.55 inches | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 50 km | 10 km | 150 meters | 100 m | 10 km |
| Network Interface | Fiber | 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 |
| Power Consumption | N/A | 4.0W | 3.5W | 4W | N/A |
| Product Name | XFP-10G-CBAND-T50-ZR | QSFPP-40GBASE-LR4 | QSFPP-40GBASE-SR4 | QSFPP-40GE-SR4-B | QSFPP-4X10GE-LR |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Long-Range | Long-Range | Short-Range | Short-Range | Long-Range |
| Wavelength | C-Band (~1550 nm) | 1310 nm | 850 nm | 850 nm | 1310 nm |
| Weight | N/A | N/A | 0.16 lbs | 0.11 lbs | N/A |
| Width | N/A | N/A | 1.18 inches | 0.55 inches | N/A |
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Questions & Answers
Q
What is the QSFPP-40GE-SR4-B QSFP+ 40GE SR Bundle?
A
The QSFPP-40GE-SR4-B is a 10-pack of QSFP+ 40GBase-SR4 transceivers designed for short-range multimode fiber connections up to 100 meters, ideal for high-density data center deployments.
Q
Which fiber type does the QSFPP-40GE-SR4-B support?
A
Each module supports OM3 and OM4 multimode fiber, delivering reliable 40 Gbps links over up to 100 meters on OM3 and 150 meters on OM4.
Q
What is the maximum reach of the QSFP+ 40GE SR4 transceiver?
A
The transceiver achieves up to 100 meters over OM3 and 150 meters over OM4 multimode fiber at 40 Gbps.
Q
Which connector type is required for the QSFPP-40GE-SR4-B?
A
The bundle uses MPO/MTP 12-fiber connectors on the fiber side and QSFP+ interfaces on the host side for seamless high-density deployment.
Q
Is the QSFPP-40GE-SR4-B compatible with major switch vendors?
A
Yes. It is fully MSA-compliant and interoperable with leading brands such as Cisco, Juniper, Arista, Dell and HP.
Q
Are these QSFP+ modules hot-swappable?
A
Yes. They support hot swapping, allowing insertion or removal without affecting system operation or requiring a power cycle.
Q
What is the power consumption per transceiver?
A
Each QSFP+ 40GE SR4 transceiver consumes ≤2.5 Watts, ensuring low power draw and efficient cooling.
Q
How do I install the QSFP+ 40GE SR4 transceiver?
A
Align the module with the QSFP+ cage, slide gently until it clicks, then attach MPO/MTP fiber cables observing correct polarity.
Q
Does the bundle include fiber patch cables?
A
No. The QSFPP-40GE-SR4-B bundle includes ten QSFP+ modules only; MPO/MTP fiber cables are sold separately.
Q
What warranty covers the QSFPP-40GE-SR4-B bundle?
A
All modules come with a lifetime warranty, free advanced replacement and 24/7 technical support for maximum uptime.
Q
What operating temperature range do these modules support?
A
They operate reliably between 0 °C and 70 °C ambient temperature, suiting standard data center environments.
Q
Can these modules support 4×10G breakout configurations?
A
Yes. When paired with an MPO-to-4×LC breakout harness, each QSFP+ 40GE SR4 module splits into four 10 Gbps channels.
Q
Are these transceivers compliant with industry standards?
A
Yes. They meet IEEE 802.3ba, SFF-8436 and SFF-8685 MSA specifications for 40GBase-SR4 performance.
Q
Are the QSFPP-40GE-SR4-B modules RoHS compliant?
A
Yes. All modules are fully RoHS 6/6 compliant, ensuring they are lead-free and environmentally safe.
Q
How can I monitor the health of each QSFP+ module?
A
Use the built-in Digital Diagnostics Monitoring (DDM/DOM) per SFF-8472 to view real-time metrics such as optical power, temperature and voltage.
Q
Can I mix QSFPP-40GE-SR4-B with existing 40G SR transceivers?
A
Yes. MSA compliance guarantees interoperability, allowing seamless integration with other vendor-branded 40GBase-SR4 transceivers.
