Name: QDD-400G-LR8-S Cisco 400GBASE-LR8 QSFP-DD Optical Transceiver
Brand: Cisco
SKU: QDD-400G-LR8-S
Price: 4720.00 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The Cisco 400GBASE-LR8 QSFP-DD Optical Transceiver offers unmatched 400Gbps connectivity with longer reach over single-mode fiber, leveraging advanced LAN WDM EML technology within a compact QSFP-DD form factor. It supports LC duplex connectors along with Digital Optical Monitoring to ensure stable and manageable fiber optic links.

General Information
Brand	Cisco
Part Number	QDD-400G-LR8-S

Technical Information
Media	SMF
Type	DFB CWDM
Protocols	400GBASE-LR8, IEEE 802.3bs
Connector	LC Duplex
DOM Support	Yes

Physical Characteristics
Weight	3.00
Condition	Refurbished

Product Description
The Cisco 400GBASE-LR8 QSFP-DD Optical Transceiver is engineered to deliver ultra-high data rates supporting 400 Gigabit Ethernet applications. Designed for long-reach optical links over single-mode fiber, it extends network reach while maintaining performance integrity. The transceiver supports the QSFP-DD form factor, ensuring compatibility with modern network switches and routers. Key Features Operates at 400Gbps data rate conforming to 400GBASE-LR8 standard Employs 8 lanes of LAN WDM EML technology for wavelength multiplexing Single-mode fiber optic media enabling distances up to 10 kilometers LC duplex connector type for reliable optical interface Digital Optical Monitoring (DOM) support for real-time diagnostics This transceiver is ideal for high-capacity data center interconnects and service provider networks requiring robust, long-distance transmission. Its power-efficient design and optical performance make it suitable for scalable, high-density deployments.

Use Cases
This transceiver is typically deployed in large-scale data center environments and telecom networks that demand high throughput and long-distance optical connectivity. Network operators and enterprises benefit from its ability to support backbone links and high-performance interconnects. How It's Used: Connecting core switches in data centers over single-mode fiber for distances up to 10 kilometers Enabling high-speed backbone links in metro and carrier networks Supporting high-density 400G Ethernet aggregation in enterprise campus networks Facilitating inter-data center connectivity with robust LAN WDM optics Integrating with next-generation routers and switches compatible with QSFP-DD interfaces By integrating this optical transceiver, networks achieve improved scalability and maintain high performance across extended reaches, optimizing operational efficiency for demanding data workloads.

QDD-400G-LR8-S Cisco 400GBASE-LR8 QSFP-DD Optical Transceiver

Product Overview

General Information

Technical Information

Physical Characteristics

Product Description

Use Cases