Name: QSFP-4X10G-LR-S= Cisco 40Gbps 4x10GBase-LR 10km Single-Mode QSFP+ Transceiver
Brand: Cisco
SKU: QSFP-4X10G-LR-S=
Price: 320.43 USD
Availability: InStock
Rating: 4.8 (118 reviews)

Product Overview
The QSFP-4X10G-LR-S= is a Cisco QSFP+ transceiver module that breaks down a 40 Gb/s signal into four 10 Gb/s lanes for transmission over single-mode fiber. It fits into network switches or routers requiring long-distance fiber connectivity and is designed to work in environments where extended reach and reliable data transfer are essential.

General Information
Brand	Cisco
Part Number	QSFP-4X10G-LR-S=

Technical Information
Form Factor	QSFP+
Media	SMF
Type	LX
Power Consumption	3.5 W (typical)
Protocols	10GBase-LR,40G
Connector	MTP/MPO
DOM Support	Yes

Physical Characteristics
Weight	3.00
Condition	Refurbished

Product Description
This QSFP-4X10G-LR-S= module splits a 40 Gb/s data stream into four 10 Gb/s channels, ideal for long-distance network links. Often found in data centers and enterprise backbones, it transmits over single-mode fiber for distances up to 10 kilometers at a 1310 nm wavelength. Built for high-bandwidth applications, network engineers and IT professionals commonly deploy this module to extend fiber runs between switches or routers with minimal signal loss. Its MTP/MPO connector supports dense fiber cabling setups, making it a practical choice for scalable environments. Key Features Four independent 10 Gb/s channels combined into one 40 Gb/s link Reliable single-mode fiber transmission up to 10 kilometers Standard 1310 nm wavelength for long-reach applications Compact QSFP+ form factor for easy integration Compatible with Cisco network hardware supporting QSFP+ interfaces This transceiver is typically deployed in core networking infrastructure where long-distance fiber links are necessary, such as between data centers or large campus networks. It helps maintain high data throughput without the need for additional signal regeneration, making it efficient for expanding or upgrading fiber backbones.

Use Cases
The QSFP-4X10G-LR-S= transceiver module is ideal for high-performance networking environments that demand reliable, long-distance fiber connections. It serves data centers, enterprise backbones, and service providers requiring efficient aggregation of multiple 10 Gb/s channels over single-mode fiber, optimizing infrastructure where fiber runs extend up to 10 kilometers. How It's Used: Connecting distributed data center racks in campus environments where 10 km fiber spans separate equipment. Enabling high-throughput aggregation in large enterprise IT networks supporting virtualization and cloud workloads. Interfacing between core and distribution switches in metropolitan area network (MAN) deployments. Supporting storage area networks (SAN) that require low-latency, multi-lane 10 Gb/s links over extended distances. Utilizing in service provider edge routers to facilitate long-reach 40 Gb/s connections with modular lane breakdown. By consolidating multiple 10 Gb/s signals into a single 40 Gb/s interface over single-mode fiber, this module enhances network scalability and simplifies cabling complexity. It ensures consistent performance for demanding workloads across extended fiber links, contributing to operational efficiency in sophisticated fiber-optic network architectures.

QSFP-4X10G-LR-S= Cisco 40Gbps 4x10GBase-LR 10km Single-Mode QSFP+ Transceiver

Product Overview

General Information

Technical Information

Physical Characteristics

Product Description

Use Cases