DR4 Optical Transceiver
Our DR4 Optical Transceiver family includes four modules: 200G QSFP56 DR4, 400G OSFP DR4, 400G QSFP‑DD DR4, and 400G QSFP112 DR4. This article focuses on the 400G QSFP‑DD DR4. For details on the other three models, please browse our website or contact our sales team.
MCR-6PS3CC-5H(400G QSFP‑DD DR4) is a 400 Gbps Quad Small Form Factor Pluggable-Double Density optical transceiver designed for 500 m optical communication applications.

1.Features
•IEEE 802.3bs specification compliant
•QSFP-DD MSA compliant
•4x106.25 Gbps PAM4 optical interface
•8x53.125 Gbps PAM4 electrical interface
•I2C interface with integrated DDM
•Up to 500 m transmission distance on single mode fiber (SMF) with FEC
•Supply voltage: 3.3 V
•Maximum power consumption: 12 W
•MTP/MPO-12 connector
•Operating case temperature: 0 to 70 °C
•RoHS compliant
2.Applications
•400G Ethernet
•Datacenter enterprise networking
For the 200G, 400G OSFP, or 400G QSFP112 versions of the DR4 Optical Transceiver, please explore our product pages or reach out to our team for recommendations.
FAQ
Q: Do you attend trade shows where I can see these DR4 modules in person?
A: Yes, we exhibit at major global events: OFC (USA), ECOC (Europe), FOE (Japan), Data Centre Paris, Data Centre Madrid, and Smart Nation Expo in Malaysia. You can see live demos of our DR4 series and other high‑speed optics. Check our website for show schedules and booth numbers.
Q: What is the maximum distance for these DR4 modules?
A: All DR4 modules (200G and 400G) are rated for 500 meters on single‑mode fiber with FEC enabled. For longer reaches (2km or 10km), you would need FR4 or LR4 modules. If your link is between 500m and 2km, consider our FR4 series.
Q: How do I store unused DR4 modules?
A: Keep them in the original anti‑static bag, inside a closed box away from moisture and direct sunlight. Ideal storage temperature is 0‑40°C. Always insert the dust plug into the MPO‑12 port. Do not stack heavy items on top. This prevents dust contamination and ESD damage.
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