Dell QSFP-40G-LR4 – QSFP+ LR4 Optical Transceiver

About Dell QSFP-40G-LR4 QSFP+ LR4 Optical Transceiver in Bangladesh

The Dell QSFP-40G-LR4 is a high-speed 40Gbps Ethernet optical transceiver designed for long-reach fiber connectivity over single-mode fiber. Using the compact QSFP+ form factor and 40GBASE-LR4 optical technology, it provides reliable 40GbE connectivity for compatible Dell switches, routers, network interface cards, and other high-performance networking equipment.

The QSFP-40G-LR4 uses four wavelength-division-multiplexed optical channels combined into a single 40Gbps optical link. Operating in the 1310nm-class optical band, the module is designed for long-distance single-mode fiber connections and can support distances of up to approximately 10km under suitable conditions.

With a duplex LC optical connector, the Dell QSFP-40G-LR4 provides a convenient point-to-point fiber interface for enterprise backbone networks, data center interconnects, campus networks, network aggregation, and long-distance switch-to-switch connections.

Dell QSFP-40G-LR4 QSFP+ LR4 Optical Transceiver Specifications & Overview

Overview

The Dell QSFP-40G-LR4 delivers 40Gbps optical Ethernet connectivity through a high-density QSFP+ interface. It is designed for network environments where 40GbE bandwidth must be transported over longer single-mode fiber distances.

The LR4 optical architecture uses four wavelength channels in the 1310nm-class optical band. These channels are multiplexed onto a duplex single-mode fiber connection, allowing the module to deliver 40Gbps connectivity through a standard LC fiber interface.

With a reach of up to approximately 10km under suitable conditions, the QSFP-40G-LR4 is suitable for data center interconnects, enterprise backbone links, campus networks, network aggregation, ISP infrastructure, and long-distance switch-to-switch connections.

Unlike the 40GBASE-SR4, which is designed for short-reach multimode fiber and uses a parallel MPO interface, 40GBASE-LR4 is designed for longer-reach single-mode fiber and uses a duplex LC connector. This makes LR4 particularly useful where single-mode fiber infrastructure is already available.

Buy Dell QSFP-40G-LR4 QSFP+ LR4 Optical Transceiver in Bangladesh

Purchase the Dell QSFP-40G-LR4 QSFP+ LR4 Optical Transceiver from Datacom Technologies (BD). We supply Dell networking equipment, QSFP+ and QSFP28 transceivers, Ethernet switches, routers, servers, storage, fiber connectivity products, and data center infrastructure with competitive pricing, technical consultation, deployment assistance, and nationwide delivery throughout Bangladesh.

Compatibility

• Compatible Dell 40GbE Networking Platforms
• Dell Ethernet Switches Supporting QSFP+
• Compatible Dell Routers and Network Appliances
• 40GbE Network Interface Cards Supporting QSFP+ LR4
• Compatible QSFP+ LR4 Optical Interfaces
• Single-Mode Fiber Network Infrastructure
• Duplex LC Fiber Cabling

Always verify the exact Dell part number, host switch or router model, firmware, supported optics list, port configuration, optical specifications, power requirements, and transceiver coding before deployment.

Applications

• 40GbE Data Center Networking
• Data Center Interconnects
• Long-Distance Switch-to-Switch Connectivity
• Enterprise Network Backbone Links
• Campus Network Fiber Links
• Network Aggregation
• High-Speed Network Uplinks
• Cloud Data Center Infrastructure
• ISP and Service-Provider Networks
• Long-Reach Single-Mode Fiber Links

Benefits

• 40Gbps high-speed Ethernet connectivity
• Compact QSFP+ form factor
• 40GBASE-LR4 optical technology
• Four-wavelength WDM architecture
• 1310nm-class optical transmission
• Designed for single-mode fiber
• Duplex LC optical interface
• Up to approximately 10km reach under compatible conditions
• Ideal for data center interconnects and enterprise backbones
• Suitable for compatible Dell 40GbE networking platforms

Why Buy from Datacom Technologies (BD)?

Datacom Technologies (BD) supplies enterprise networking and data center products in Bangladesh, including Dell networking equipment, optical transceivers, Ethernet switches, routers, servers, storage, and fiber connectivity solutions. Customers can get competitive pricing, technical consultation, deployment assistance, and after-sales support.

• Call/WhatsApp: +8801748173213
• Email: sales@datacom.com.bd
• Alternative Email: datacomtechnologiesbd@gmail.com
• Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, Dhaka-1205, Bangladesh

Frequently Asked Questions (FAQ)

Q1: What is the data rate of the Dell QSFP-40G-LR4?
The Dell QSFP-40G-LR4 is designed for 40Gbps Ethernet connectivity.

Q2: What does LR4 mean?
LR4 refers to a long-reach 40G optical architecture using four wavelength channels combined through wavelength-division multiplexing.

Q3: What form factor does the QSFP-40G-LR4 use?
It uses the QSFP+ form factor, which is widely used for 40GbE networking.

Q4: What type of fiber does the Dell QSFP-40G-LR4 use?
The 40GBASE-LR4 design is intended for single-mode fiber (SMF).

Q5: What wavelength does the Dell QSFP-40G-LR4 use?
The transceiver operates in the 1310nm-class optical band.

Q6: What is the reach of the Dell QSFP-40G-LR4?
The module is designed for up to approximately 10km of optical reach over compatible single-mode fiber. Actual performance depends on the optical budget, fiber plant, connectors, patching, and host equipment.

Q7: What connector does the QSFP-40G-LR4 use?
The transceiver uses a duplex LC optical connector.

Q8: Can the QSFP-40G-LR4 be used over multimode fiber?
40GBASE-LR4 is designed for single-mode fiber. For short-reach multimode applications, a compatible 40GBASE-SR4 QSFP+ transceiver should be selected.

Q9: What is the difference between 40G SR4 and 40G LR4?
40GBASE-SR4 is designed for short-reach multimode fiber and normally uses a parallel MPO interface, while 40GBASE-LR4 is designed for longer-reach single-mode fiber and uses wavelength-division multiplexing with a duplex LC interface.

Q10: Is every QSFP+ port compatible with the Dell QSFP-40G-LR4?
No. The host platform must support the required 40GbE optical module, electrical interface, power and thermal requirements, firmware, and transceiver coding. Always verify compatibility before deployment.

Q11: Where can I buy the Dell QSFP-40G-LR4 in Bangladesh?
You can contact Datacom Technologies (BD) for Dell high-speed optical transceivers with competitive pricing, technical consultation, and nationwide delivery.