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QSFPP-40GLR4-X4-B
Bundle, Quantity four QSFPP, 40GBASE, LR4, Optics
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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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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.
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.
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.
To get the detailed certification, please go to the Compliance Center.
| 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 |
LR4 bundle simplified multiple long reach 40G links.
Stable optics across all four modules.
Good solution for backbone upgrades.
Consistent performance.
Reliable 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.
Each module uses duplex LC connectors optimized for single-mode fiber links.
It supports a maximum reach of 10 kilometers over standard single-mode fiber (SMF) compliant with ITU-T G.652.
It uses four CWDM channels around 1310 nm to deliver an aggregate 40 Gbps data rate.