Brand: Generic/Cisco Compatible (Based on search, specific brand varies) · SKU: QSFP-40GE-LR4 · MPN: QSFP-40GE-LR4 · Category: Networking
The QSFP-40GE-LR4 is a QSFP+ (Quad Small Form-factor Pluggable Plus) transceiver module designed for 40 Gigabit Ethernet connectivity over Single-Mode Fiber (SMF). It supports the 40GBASE-LR4 standard and can achieve link lengths up to 10 km (6.2 miles). The module utilizes a 4-channel MUX/DEMUX design, converting 4 inputs of 10 Gbps electrical data into four CWDM optical signals at wavelengths 1271nm, 1291nm, 1311nm, and 1331nm, which are then multiplexed onto a single fiber for transmission. On the receiver side, it de-multiplexes the signal back into four 10 Gbps electrical channels. It typically features a duplex LC connector and supports Digital Optical Monitoring (DOM/DDM). Power consumption is often reported as less than 3.5W or < 2W, and it requires a single +3.3V power supply. It is compliant with IEEE 802.3ba, QSFP+ MSA (SFF-8436), and often RoHS.
| Data Rate | 40 Gbps (4x10Gbps) |
|---|---|
| Interface | Duplex LC Connector |
| Cable Type | Single-Mode Fiber (SMF) |
| Form Factor | QSFP+ |
| Wavelengths | Four lanes: 1271, 1291, 1311, 1331 nm (CWDM) |
| DDM/DOM Support | Yes |
| Maximum Distance | 10 km (6.2 mi) |
| Power Consumption | < 3.5W or < 2W |
| Operating Temperature | 0°C to 70°C (Standard) |
| Warranty | Lifetime Warranty often offered by compatible vendors |
| Weight | Approximately 122.0 g (for a compatible model) |
| Dimensions | 13.5 x 18.4 x 72.4 mm |
The QSFP-40GE-LR4 is a hot-pluggable transceiver module providing 40GBASE-LR4 connectivity up to 10km over standard single-mode fiber. It is widely used in data centers, enterprise cores, and service provider networks. The module operates by multiplexing four independent 10G lanes onto a single fiber using CWDM technology.
Yes, this QSFP-40GE-LR4 40GBASE-LR4 QSFP+ Transceiver Module (QSFP-40GE-LR4) is 100% genuine Generic/Cisco Compatible (Based on search, specific brand varies) hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This QSFP-40GE-LR4 40GBASE-LR4 QSFP+ Transceiver Module includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the QSFP-40GE-LR4.