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LR4 bundle simplified multiple long reach 40G links.
QSFPP-40GLR4-X4-B
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Bundle, Quantity four QSFPP, 40GBASE, LR4, Optics
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QSFPP-40GLR4-X4-B
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- Juniper
- GTIN:
- 998386503478
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QSFPP-40GLR4-X4-B Overview
QSFPP-40GLR4-X4-B is a high-performance QSFP+ transceiver designed for 40G Ethernet applications. It features an LC fiber optic connector and utilizes single-mode fiber technology to achieve long-range transmission of up to 10km using the 40GBASE-LR4 standard.
This module supports Ethernet protocols and is ideally suited for use in data centers, enterprise networks, and telecom environments. With its compact QSFP+ form factor and carefully engineered physical dimensions, QSFPP-40GLR4-X4-B provides reliable connectivity while maintaining power efficiency in high-density network deployments.
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QSFPP-40GLR4-X4-B Specifications
- Product Type
- Transceiver
- Form Factor
- QSFP+
- Data Rate
- 40G
- Connector Type
- LC
- Wavelength
- 1270-1327nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 10km
- 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-40GLR4-X4-B
- Height
- 0.66 inches
- Width
- 0.88 inches
- Depth
- 0.88 inches
- Weight
- 0.16 lbs
QSFPP-40GLR4-X4-B Use Case
High-Density Data Center Interconnect Across Campus Buildings
In a multi-building enterprise campus, IT operations deployed four QSFPP-40GLR4-X4-B-Bundle modules to establish redundant 40GBASE-LR4 links over single-mode fiber spanning up to 10 km. This configuration supports high-bandwidth storage replication, live VM migrations and low-latency east-west traffic. Benefit: Achieves aggregated 160 Gbps throughput with hot-swap optics, minimizes link failures and scales seamlessly as the data center footprint grows.
Carrier Backhaul for Regional Telecom Network Expansion
A regional telecom provider leveraged the QSFPP-40GLR4-X4-B-Bundle (quantity four) to upgrade backhaul capacity between POPs. Each 40GBASE-LR4 channel transports voice, video and 5G mobile traffic over existing long-haul fiber corridors without costly OTN upgrades. Benefit: Delivers carrier-grade 40 Gbps links per lane, extends reach to 10 km, reduces capex by 30 % and accelerates time-to-market for new service rollouts.
High-Performance Computing Cluster Interconnect
A research lab integrated four QSFPP-40GLR4-X4-B-Bundle optics into its HPC fabric to link GPU-accelerated nodes across two buildings. The 40GBASE-LR4 modules ensure low-latency, lossless data flows for AI training workloads and simulation jobs. Benefit: Increases cluster bandwidth to 160 Gbps aggregate per QSFP port group, lowers jitter by 50 % and optimizes resource utilization for compute-intensive projects.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QSFPP-40GLR4-X4-B |  XFP-10G-CWDM1591 |  SFPP-10G-ER-OTN |  SFP-GE40KT13R15 |  SRX-SFP-10GE-ER | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP+ | XFP | SFP+ | SFP | SFP |
| Data Rate | 40G | 10G | 10G | 1G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1270-1327nm | 1591 nm | 1310nm | 1310 nm | 1550 nm |
| Transmission Distance | Long-Range | Long-Range | Extended-Range | Long-Range | Extended-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 10km | 80 km | 40km | 40 km | 40 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet, OTN | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Ethernet |
| Power Consumption | 3.5W | 1.5 W | N/A | N/A | 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 | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | QSFPP-40GLR4-X4-B | XFP-10G-CWDM1591 | SFPP-10G-ER-OTN | SFP-GE40KT13R15 | SRX-SFP-10GE-ER |
| Height | 0.66 inches | 0.53 inches | N/A | N/A | 0.43 inches |
| Width | 0.88 inches | 1.59 inches | N/A | N/A | 0.83 inches |
| Depth | 0.88 inches | 0.32 inches | N/A | N/A | 1.33 inches |
| Weight | 0.16 lbs | 0.14 lbs | N/A | N/A | 0.12 lbs |
Reviews & Ratings
E
Edward Hollins
5
Stable optics across all four modules.
S
Simon Redgrave
5
Good solution for backbone upgrades.
J
Julian Forster
4
Consistent performance.
V
Victor Langdon
5
Reliable bundle.
Questions & Answers
What is the QSFPP-40GLR4-X4-B bundle?
The QSFPP-40GLR4-X4-B bundle includes four QSFP+ 40GBASE-LR4 optical transceivers designed for 40 Gbps Ethernet over single-mode fiber up to 10 km.
Which connector type does the 40GBASE-LR4 module use?
Each module uses duplex LC connectors optimized for single-mode fiber links.
How far can the 40GBASE-LR4 transceiver transmit data?
It supports a maximum reach of 10 kilometers over standard single-mode fiber (SMF) compliant with ITU-T G.652.
What transmission wavelengths does the LR4 module employ?
It uses four CWDM channels around 1310 nm to deliver an aggregate 40 Gbps data rate.
Is the QSFPP-40GLR4-X4-B MSA compliant?
Yes, it meets the QSFP+ MSA (SFF-8436) and IEEE 802.3ba LR4 specifications for 40GBASE-LR4.
What data rate does each transceiver support?
Each QSFP+ module delivers a full 40 Gbps aggregate throughput.
Does the transceiver support Digital Diagnostic Monitoring (DDM)?
Yes, it offers DDM/DOM for real-time monitoring of optical power, temperature, and voltage.
What is the operating temperature range?
It operates reliably from 0 °C to 70 °C (32 °F to 158 °F) in commercial environments.
Is the module compatible with major OEM switches?
Yes, it is interoperable with Cisco, Juniper, Arista, Huawei, and other QSFP+-enabled platforms.
Can I use this QSFP+ module for 4×10G breakout?
Yes, it supports 4×10G breakout when paired with a compatible DAC or fiber breakout cable.
How do I install the QSFP+ 40GBASE-LR4 transceiver?
Simply slide the module into a QSFP+ port until the latch clicks, then connect the LC fiber cable.
What warranty covers the optic bundle?
The bundle includes a limited lifetime warranty for defect repair or replacement.
How many modules are included in the QSFPP-40GLR4-X4-B package?
The package contains four individual QSFP+ 40GBASE-LR4 transceiver modules.
How is the bundle packaged for shipping?
Each transceiver is secured in an anti-static tray, and all four are shipped in a single protective carton.
Does the transceiver support link aggregation protocols?
Yes, it fully supports IEEE 802.3ad static and LACP link aggregation.
What is the power consumption of each LR4 module?
Each QSFP+ 40GBASE-LR4 module consumes less than 2.5 watts.