H3C QSFPDD-400G-LR4-WDM1300-DC Compatible 400G QSFP-DD LR4 Optical Transceiver Module | HYTOPTODEVICE

HYTOPTODEVICE 400G transceiver is 100% compatible with H3C’s high-performance open networking platforms and equipments.verified compatible hardware includes:

• H3C S12500G-AF / S12500R Series Data Center Core Switches:

  • Supported on 400G line cards (e.g., LSXM1CGD24HB1, LSXM1CGD8HB1).

• H3C S9825 / S9855 Series High-Performance Data Center Switches:

  • S9825-32D (32x 400G QSFP-DD ports)

  • S9855-32D (32x 400G QSFP-DD ports)

• H3C CR16000 / CR19000 Series Core Routers:

  • Deployed in high-capacity service provider routing line cards supporting 400Gbps interfaces.

The H3C® QSFPDD-400G-LR4-WDM1300-DC is an enterprise-class, long-reach (10km)  Hot Pluggable Optical Module designed for massive bandwidth aggregation and scale-out network architectures. Key applications include:

• Next-Generation Cloud Data Centers: Deployed in spine-leaf or core-to-aggregation layers to handle ultra-high-density data traffic, AI/ML computing clusters, and distributed storage systems.

• Long-Reach Data Center Interconnect (DCI): Bridges geographic gaps between distinct data center facilities up to 10km apart via high-throughput single-mode fiber links without needing external optical amplifiers.

• Metro Core & Carrier Networks: Upgrades telecommunication service provider backbones and edge routing networks to scale high-bandwidth 400G line-rate services.

• Campus & Enterprise Backbones: Connects high-performance core switches in large corporate networks, public sectors, or financial data networks requiring robust 400Gbps connectivity.

Connectivity Solutions(Applications) of 400G QSFP-DD Optical Module
 







FAQ for 400G Optical Transceiver Module       

Q1: What is the maximum reach of the H3C QSFPDD-400G-LR4-WDM1300-DC? A1: This module is engineered for long-reach transmission, supporting optical links up to 10 kilometers (10km) over standard G.652 single-mode fiber (SMF).

Q2: What wavelengths does the QSFPDD-400G-LR4-WDM1300-DC use? A2: It utilizes four CWDM grid optical wavelengths (1271, 1291, 1311, 1331nm) to transport traffic with SMF. the distance up to 10km.

Q3: What type of fiber connector and patch cable does this module require? A3: It features a standard duplex LC. You will need a single-mode duplex LC-to-LC fiber optic patch cable to establish the connection.

Q4: Which modulation technology does this transceiver utilize? A4: It uses advanced OIF 56G PAM4 (Pulse Amplitude Modulation 4-level) technology, converting 8 channels of 50Gbps electrical signals into 4 channels of 100Gbps optical signals, realizing the high speed 400G network transmission.

Q5: Does the 400g optical transceiver support Digital Diagnostics Monitoring (DDM/DOM)? A5: Yes. it supports real-time DDM/DOM, allowing network administrators to monitor optical launch/receive power, temperature, voltage, and laser bias current.

Q6: What does the "LR4" mean in QSFPDD-400G-LR4? A6: It stands for Long-reach. it utilize four CWDM wavelength(1271,1291,1311,1331nm) to realize 400G network transmission.

Q7: Can I plug a H3C compatible transceiver QSFPDD-400G-LR4-WDM1300-DC  into a standard 100G QSFP28 port? A7: No. The QSFP-DD form factor utilizes a higher density configuration with a dual-row pinout. It is mechanically and electrically incompatible with legacy 100G QSFP28 ports.

Q8: Is Forward Error Correction (FEC) required for this module? A8: Yes. Per the IEEE 802.3bs standard, host platforms must enable KP4 FEC (Forward Error Correction) on the port to ensure low Bit Error Rates (BER) and link stability over the 10km distance.

Q9: Will using a third-party compatible module void my H3C hardware warranty? A9: No. Under consumer protection laws like the Magnuson-Moss Warranty Act, OEMs cannot void your system warranty simply for using third-party peripherals. Our modules are programmed with correct EEPROM signatures to avoid "Non-H3C transceiver" system warnings.

Q10: How do you guarantee the compatibility of this transceiver before shipping? A10: Each compatible QSFPDD-400G-LR4-WDM1300-DC undergoes strict 100% hardware testing on original Dell equipments.
  
Q11:Is QSFPDD-400G-LR4-WDM1300-DC hot-swappable?A11:Yes,HYTOPTODEVICE fiber transceiver modules are hot-pluggable, hot Pluggable QSFP-DD MSA Compliant.you can plug or unplug the optical module, while the device is powered on, without any damage

Q12:What does the "DC" suffix in the part number represent? A12: In H3C's naming convention, "DC" usually indicates that the transceiver is designed and certified for deployment in data center environments and meets the commercial operating temperature threshold (0°C to $70°C).

Why Network Engineers Choose HYTOPTODEVICE

HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.

• 100% MSA-compliant modules with Cisco, Huawei,Dell,Juniper, and Arista compatibility
• ISO 9001:2015 certified manufacturing facility in Shenzhen
• Average lead time of 3–5 business days with DHL/FedEx express options
• Dedicated pre-sales engineering support for custom configurations
• Actual hardware,actual switches,actual results.we publish compatibility test video,eliminate compatibility anxiety. you can watch before you buy. 
• We can provide inspection and shipping videos to make you feel as if you are right here with the product.

"We replaced 100 Cisco-branded SFP+ with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Engineer of ISP, England

Quality Certification & Compliance：

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.

We adhere to rigorous standards for our SFP modules and network solutions:

• ISO 9001: Certified quality management and production consistency.

• CE & FCC: Fully compliant for seamless Global Market Access.

• RoHS: Committed to environmental responsibility and hazardous material control.

• Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.

Certified Quality. Global Standards. Guaranteed Performance.

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