Original New

Skip to the beginning of the images gallery

QDD-400G-FR4-S, Cisco 400G QSFP-DD Transceiver, 400G-FR4/LC Duplex/2km SMF

Brand: Cisco
Model: QDD-400G-FR4-S

List Price: $6,737.13

37% OFF

$4,268.00

100% Genuine

Original, factory-verified

3-Year Warranty

Extended, enterprise-grade

24 Years Expertise

Proven, deployment-focused

Condition

Original New

Certified Expertise Builds Trust

CCIE · JNCIE · NSE7 · ACDX · HPE Master ASE · Dell Server/AI Expert

Faster Delivery, Globally Ready
20+ years of supply chain expertise for faster multi-stop delivery with smooth customs.
48H Worldwide Shipping
10+ Global Warehouses
Keep Projects On Time
Reliable availability and real-time shipment visibility to keep every critical IT project on schedule.
Track Your Order

Leading Global Distributor
Since 2002
A global ICT bridge delivering authentic hardware and trusted service for over 20 years.

Worry-Free Coverage with RSCare
3-Year warranty for enterprise hardware, including advanced RMA, diagnostics, spare parts support, and OEM service compatibility.
Cisco SmartNet
HPE Foundation Care
Dell ProSupport
Juniper Care
Fortinet Support
Your Trusted Genuine Source
Authorized partnerships with 30+ brands, including Cisco, HPE, Dell, Juniper, and Fortinet.
100% Authentic Products
100,000+ Multi-Brand SKUs Available

QDD-400G-FR4-S, Cisco 400G QSFP-DD Transceiver, 400G-FR4/LC Duplex/2km SMF

100% Genuine Ready to Ship

$6,737.13

37% OFF

$4,268.00

Overview

Cisco QDD-400G-FR4-S Overview

The Cisco 400G QSFP-DD Transceiver, model QDD-400G-FR4-S, is a high-performance optical module designed for modern data centers. It supports 400Gbps data transfer over a distance of up to 2km using Duplex Single-Mode Fiber (SMF). Ideal for engineers and procurement personnel, this transceiver simplifies high-speed data transmission and network solutions.

QDD-400G-FR4-S Product Highlights

● Gbps data rate
● Duplex LC connector
● 2km range
● Single-Mode Fiber
● High performance

Product Features Comparison

Model	Cisco QDD-400G-FR4-S	Arista QSFP-DD-400G-ZR	Juniper JNP-QDD-400G-Z	Brocade 400G-QDD-SR8	Finisar FTLC1151RDPL	Intel QDD-400G-LR8	Edgecore QSFP-DD-400G-FR4
Data Rate	400Gbps	400Gbps	400Gbps	400Gbps	400Gbps	400Gbps	400Gbps
Connector Type	Duplex LC	Duplex LC	Duplex LC	MPO	Duplex LC	Duplex LC	Duplex LC
Range	2km	40km	40km	100m	10km	10km	2km
Fiber Type	Single-Mode	Single-Mode	Single-Mode	Multi-Mode	Single-Mode	Single-Mode	Single-Mode
Wavelength	1310nm	1550nm	1550nm	850nm	1310nm	1310nm	1310nm
Form Factor	QSFP-DD	QSFP-DD	QSFP-DD	QSFP-DD	QSFP-DD	QSFP-DD	QSFP-DD

QDD-400G-FR4-S Product Application Scenarios

● High-speed data centers
● Inter-rack connections
● Core network upgrades

Optional Add-ons

Accessory Model	Description
Cisco CAB-LC-LC-5M	5m Duplex LC to LC Cable
Cisco CAB-LC-LC-10M	10m Duplex LC to LC Cable
Cisco SFP-H10GB-CU3M	3m Active Optical Cable

Get More Information

Discover unbeatable prices and fast shipping for the Cisco QDD-400G-FR4-S. Access the detailed QDD-400G-FR4-S datasheet and ensure you're getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via live chat or email us at [email protected].

Quality Certifications

Specification

Cisco QDD-400G-FR4-S Specification

Cisco QDD-400G-FR4-S Specifications
Brand	Cisco
Model	QDD-400G-FR4-S
Transceiver Type	QSFP-DD
Maximum Data Rate	400 Gbps
Wavelength	1310 nm
Connector Type	Duplex LC
Cable Type	Single-Mode Fiber (SMF)
Maximum Reach	2 km
Modulation Format	PAM4
Digital Diagnostics Monitoring (DDM)	Yes
Operating Temperature Range	0°C to 70°C
Form Factor	Plug-in module
Power Consumption	12W
Compatibility	IEEE 802.3bs
MTBF	1,000,000 hours
EMI Standards	FCC Class B, CE
Safety Standards	UL, CSA
RoHS Compliant	Yes
Protocol	40/100/400 Gigabit Ethernet
Fiber Type	G.652

Quality Certifications

Need Help? Technical Experts Available Now.

+1-626-655-0998 (USA)
UTC 15:00-00:00
+852-2592-5389 (HK)
UTC 00:00-09:00
+852-2592-5411 (HK)
UTC 06:00-15:00

Get a Quote

Live Chat

Need Help? Technical Experts Available Now.

Customer Reviews

Write Your Own Review

Only registered users can write reviews. Please Sign in or create an account

Q&A

Questions & Answers

What accessories are compatible with the QDD-400G-FR4-S transceiver?

Compatible accessories include duplex LC cables and appropriate Cisco QSFP-DD slots and network devices.

How does the QDD-400G-FR4-S transceiver compare with other 400G transceivers?

The QDD-400G-FR4-S offers a good balance of cost, performance, and distance capabilities, standing out for its 2km reach over SMF.

Is the QDD-400G-FR4-S transceiver compatible with my existing network equipment?

The QDD-400G-FR4-S is compatible with most Cisco switches and routers supporting QSFP-DD ports, ensuring seamless integration.

Why should I buy from router-switch.com?

As an authorized distributor for 20+ top brands, router-switch.com offers:
- Genuine products with full warranties.
- Competitive pricing and bulk order discounts.
- Professional pre-sales and after-sales support.

Learn More

How cost-effective is the QDD-400G-FR4-S transceiver?

The QDD-400G-FR4-S transceiver offers high performance at a competitive price, making it ideal for cost-sensitive network upgrades.

What are the main features of the QDD-400G-FR4-S transceiver?

The QDD-400G-FR4-S transceiver features 400G speed, duplex LC, and supports up to 2km duplex SMF, providing high bandwidth and long-distance connectivity.

In which scenarios is the QDD-400G-FR4-S transceiver commonly used?

The QDD-400G-FR4-S transceiver is widely used in data centers, enterprise networks, and service provider environments for high-bandwidth applications.

How do I install the QDD-400G-FR4-S transceiver in my network?

Installation is straightforward'insert the QDD-400G-FR4-S transceiver into a compatible QSFP-DD port and connect to the network using duplex SMF cables.

Does the QDD-400G-FR4-S transceiver require any firmware upgrades?

Usually, no firmware upgrades are needed. However, check with Cisco for any specific software requirements for optimal performance.

Are there alternative products to the QDD-400G-FR4-S transceiver?

Yes, Cisco offers several 400G optical modules. Evaluate your network requirements to choose the best fit for your needs.

What should I do if the QDD-400G-FR4-S transceiver stops working?

Ensure the transceiver is installed correctly, check the fiber connections, and consult Cisco's troubleshooting guide for further steps.