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Product overview

The 400G QSFP-DD module transceivers (400GBASE Quad Small Form-Factor Pluggable Double Density) is a new generation of 400G transceiver module based on the QSFP-DD form factor. It is a high-density, high-speed pluggable module with an additional row of contacts. It can provide eight channels of electrical interfaces, and the QSFP-DD module series provide the industry's highest bandwidth density.This optical transceiver comes with a maximum link length of 100m on OM4 multimode fiber, and is capable of a 400Gb/s data rate with each channel transmitting up to 53.125Gb/s. The module also features outstanding BER and high sensitivity because of reliable design and excellent coupling efficiency. It is compliant with IEEE 802.3cm, QSFP DD CIMS 4.0 and QSFP DD Hardware 5.1. These 400Gb/s QSFP DD SR8 high-speed optical transceivers find applications in cloud computing, Big Data and other technologies associated with the construction of data centers.

Features and benefits of 400G QSFP-DD Modules transceiver

1. Support hot swap

Input/output devices plugged into 400G Ethernet Cisco QSFP ports

2. Interoperability

Interoperable with other IEEE standard 400GBASE interfaces when applicable

3. Cisco platform certification

Qualified and tested on QSFP-DD 400G port and obtained Cisco platform certification

4. Comply with IEEE 802.3bs

It is compliant to IEEE 802.3bs protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standard.

5. Comply with QSFP-DD MSA standard

The collaboration of MSA will make the implementation and operation of the QSFP-DD pluggable interface in network equipment faster

6. Ultrahigh speed

PAM4 modulation that supports speeds up to 400G runs at a speed of 50 Gbps.

7. Backward compatibility

Backward compatible with low-speed QSFP (QSFP+ and QSFP28) pluggable modules and cables, designed for high-speed optical network applications.

Application and market of 400G QSFP DD transceiver

Guanglian’s 400G QSFP-DD product portfolio provides customers with a variety of ultra-high-density transceiver modules and the flexibility of 400 Gigabit Ethernet connection options. 400G is one of the highest data rates in the Ethernet world, providing critical aggregation and high bandwidth Interconnect applications provide improved functions. Therefore, 400G QSFP-DD is currently the most widely used fiber optic transceiversmodules in this series. The main applications are 400G Ethernet, ultra-large-scale data centers, high-performance computing networks, cloud networks, enterprise core and Distribution layer, Internet exchange, managed services, wireless infrastructure core, service provider and operator core network, and video distribution infrastructure.

Technical advantages of 400G QSFP DD transceiver

As a professional fiber optic transceivers manufacturer and supplier, Guanglian provides a comprehensive 400G QSFP-DD optical transceiver product portfolio. Our compatible QSFP-DD product portfolio includes transceivers that can operate on single-mode or multi-mode optical fibers. A connection distance of a few meters to 40 kilometers, and can support data rates up to 425 Gbps and 400G Ethernet applications.

Our QSFP-DD includes 400GBASE-SR8, 400GBASE-DR4, 400GBASE-DR4+, 400GBASE-FR4, 400GBASE-LR4, 400GBASE-ER4, fully compliant with QSFP-DD MSA, 100G LAMBDA MSA, CMIS 4.0 and IEEE 802.3bs 400 Gbps Standard Specification.

The 400G-QSFP-DD transceiver can work in 80% of network devices, which do not have special algorithms to protect third-party modules. However, we have accumulated deep expertise in custom coded firmware for the 400G QSFP-DD product portfolio, so that these modules can be used in almost any brand of equipment.

Cost Effective Product Portfolio for Data Center Inter and Intra Connectivity. New applications such as Live-broadcasting, Online office, Virtual reality, Artificial Intelligence, Industrial interconnection are driving the network traffic to a higher level and cloud operators need to upgrade its network to meet the demand of bigger bandwidth. Guanglian's cloud data center optical transceivers solution, including 25G/40G/100G/200G/400G, all our data center optical transceiver uses our mature and experienced high-speed COB manufacturing technology provides our customers a cost-effective solution with high reliable, excellent consistence on optical performances. Guanglian’s strong R&D department will continue to provide better solutions for the industry.

400G Transceiver

Rapid demand for bandwidth has actually led datacenters to update networks from 10G as well as 40G to 100G and also now 400G. Cisco predicts that by 2020 international cloud IP traffic will certainly meet or exceed 14 zettabytes. To fulfill this constantly growing need of IP website traffic, transceiver suppliers have actually been servicing practical 400G interconnects.Right here, we take a look at 2 prominent 400G form factors-- QSFP-DD as well as OSFP.


QSFP-DD means Quad Small Form Factor Pluggable Double Density. It adapts the same standard concept as the 40G QSFP as well as 100G QSFP28, the one distinction being electrical call thickness. The QSFP-DD supports 8 lanes of 50Gb/s to attain 400Gb/s in contrast to the 4 lanes by QSFP as well as QSFP28.The main benefit of the 400G QDFP-DD is its backward compatibility. QSFP-DD ports support 40G as well as 100G pluggables enabling simpler migration to 400GbE. The QSFP-DD kind factor is slightly longer than reduced rate quad form factors to fit additional rows of get in touches with in the port. The QSFP-DD spec defines both single-height and also piled arrangements of the cage/connector system, each supporting QSFP components with the initial rows of contacts, plus sustaining QSFP-DD modules via the additional recessed row of calls.


OSFP represents Octal Small Form Factor Pluggable. Like the QSFP-DD, the OSFP sustains 8 lanes of 50Gb/s for an accumulated information rate of 400Gb/s. It is made for maximum thermal and electrical performance. OSFP is slightly longer as well as wider than the QSFP as well as does not supply backwards compatibility. Air conditioning is attained by incorporating warmth sink straight right into the kind variable.In conclusion, OSFP and QSFP-DD supply different advantages throughout customer. The option of one over the depends upon the client's top priorities when it come to thermal monitoring, density, in reverse compatibility etc.Vitex lately presented 400G QSFP-DD as well as OSFP transceivers with companion, Innolight. To learn more most likely to our 400G web page right here.

About Guanglian

Guanglian Xuntong Technology Group Co., Ltd. ("Guanglian"), founded in 2016, with registered capital of 22millions and certified as a National high-tech enterprise, is a leading optical transceiver solution and service provider, including 400g, 200g,100g, etc.welcome to contact us for more informations.

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