Sopto 40G QSFP+ LR4 Module — 1310 nm, 10 km, Duplex LC

The Sopto SPT-QSFP+LR4 is a 40Gbps QSFP+ optical transceiver designed for long-reach single-mode fiber links. Operating over 10 km at 1310 nm with a duplex LC connector, it is fully hot-pluggable and compliant with 40GBASE-LR4 standards. Featuring low power consumption and MSA compliance, it ensures reliable high-speed connectivity for data centers, enterprise backbones, and metro networks.

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Description

The Sopto SPT-QSFP+LR4 is a high-performance 40Gbps QSFP+ transceiver designed for long-haul 40G Ethernet applications. Supporting link lengths of up to 10 km over single-mode fiber, it uses a 1310 nm LAN-WDM laser transmitter and PIN photodiode receiver with a duplex LC optical interface.

Fully compliant with IEEE 802.3ba 40GBASE-LR4 and QSFP+ MSA standards, this module ensures interoperability across a wide range of routers, switches, and network platforms. Its hot-pluggable form factor simplifies upgrades and maintenance in live networks, while low power consumption (<3.5 W typical) makes it suitable for high-density deployments.

The SPT-QSFP+LR4 also integrates advanced optical multiplexing, transmitting four channels of 10Gbps data each, aggregated into a single 40Gbps channel. This enables efficient, cost-effective backbone scaling for data centers, cloud computing environments, metro Ethernet, and ISP backbones.


Application

Data centers, Enterprise networks, Metro Ethernet, ISP backbones, Cloud computing interconnects


Key Features

  • ✅ 40Gbps long-reach QSFP+ optical transceiver

  • ✅ Supports up to 10 km over single-mode fiber

  • Duplex LC connector, hot-pluggable form factor

  • ✅ Operates at 1310 nm LAN-WDM

  • ✅ Four 10Gbps channels multiplexed into 40Gbps

  • ✅ Low power consumption (<3.5 W typical)

  • ✅ IEEE 802.3ba 40GBASE-LR4 compliant

  • ✅ QSFP+ MSA standard compliant

Specifications

 

Specification Details
Brand Sopto
Model SPT-QSFP+LR4
Product Type QSFP+ Optical Transceiver
Data Rate 40Gbps
Wavelength 1310 nm (LAN-WDM)
Fiber Type Single-mode fiber (9/125 µm)
Optical Interface Duplex LC
Maximum Reach 10 km
Digital Diagnostics Not specified by vendor
Power Supply 3.3 V DC
Power Consumption < 3.5 W typical
Hot-Pluggable Yes
Operating Temperature 0 °C to 70 °C (Commercial)
Storage Temperature –40 °C to +85 °C
Standards Compliance IEEE 802.3ba 40GBASE-LR4, QSFP+ MSA
Housing Metal casing with EMI shielding
Package Contents 1 × SPT-QSFP+LR4 module
Warranty 9 months

 

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