QSFP-40GE-LR4-S

40GBASE-LR4 QSFP+ transceiver module for SMF, duplex LC connector, 10 km reach

The Cisco QSFP-40GE-LR4-S is a 40GBASE-LR4 QSFP+ transceiver supporting links up to 10km over single mode fiber.

QSFP-40GE-LR4-S Overview

The Cisco QSFP-40GE-LR4-S is a 40GBASE-LR4 QSFP+ transceiver designed for long reach connectivity over single mode fiber. With support for links up to 10km, it provides extended reach for data center interconnect and service provider transport applications.

The Cisco QSFP-40GE-LR4-S transceiver uses four independent full-duplex 10Gbps optical lanes to achieve 40Gbps throughput while maintaining optic reliability and cost. The QSFP+ form factor provides high density and flexibility for 40G Ethernet connectivity.

Key Features

40GBASE-LR4 QSFP+ transceiver
Supports link length up to 10km over single mode fiber
4 independent 10Gbps optical lanes
QSFP+ form factor with duplex LC connector
Cisco qualified and compatible with Nexus switches
Extended reach for data center interconnect and service provider transport

Compatibility

Cisco Nexus 3264Q (N3K-C3264Q)
Cisco Nexus switches with QSFP+ ports
Industry standard QSFP+ ports

QSFP-40GE-LR4-S Specifications

Feature	Details
Data Rate	40Gbps
Wavelength	1310nm
Fiber Type	Single mode
Distance	10km
Connector	Duplex LC
Form Factor	QSFP+

Installation

The QSFP-40GE-LR4-S transceiver can be installed in any compatible QSFP+ port. No additional configuration is required for most switches, but refer to platform documentation to verify compatibility and configuration if needed.

Brand

Cisco Systems

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