400G Optical Transceiver Modules Tested for Guaranteed Interoperability
Each 400G optical transceiver module undergoes rigorous quality testing within target host devices to ensure seamless compatibility and flawless network performance.
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NS-QDD-400G-DR4-S 400G Base-DR4 QSFP-DD PAM4 1310nm 500m MTP/MPO SMF FEC Optical Transceiver Module
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NS-QDD-400G-DR4-S 400G Base-DR4 QSFP-DD PAM4 1310nm 500m MTP/MPO SMF FEC Optical Transceiver Module
$674.00
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Features
Thorough Testing Ensures High Reliability of 400G Optical Transceiver Modules
Our 400G optical transceiver modules are qualified through strict testing procedures using advanced equipment, guaranteeing you receive high-quality and dependable optical performance.
NS-QDD‑400G‑DR4‑S Transceiver Module | 400 Gbps, 1310 nm PAM4, MPO‑12 APC, 500 m
Product Overview
The QDD‑400G‑DR4‑S is a high-performance QSFP‑DD transceiver engineered for 400 Gigabit Ethernet over single‑mode fiber (SMF). It sends four parallel 100 Gbps optical lanes (1310 nm PAM4) via an MPO‑12 APC connector, delivering reliable transmission up to 500 meters.
This hot‑swappable module includes host‑side Forward Error Correction (FEC) and Digital Optical Monitoring (DOM) support for real-time diagnostics. It fully complies with IEEE 802.3bs, QSFP‑DD MSA, CMIS 4.0 and 100G Lambda MSA standards.
Designed for universal compatibility, this module works across major networking brands including Cisco, Juniper, Arista, Dell, Huawei, HPE Aruba, and more.
Compatible Brands
The NS-QDD-400G-DR4-S is universally compatible across all brands. If you need to verify compatibility with your specific switch model, please click Contact Us Now for assistance.
Product Details
The NS-QDD‑400G‑DR4‑S module converts eight 50 Gbps electrical PAM4 lanes into four single‑wavelength 100 Gbps optical channels, using high-performance EML lasers and PIN receivers.
It offers breakdown support for 4×100G DR QSFP28 modules. Host‑side FEC ensures reliable operation, and power consumption remains within ≤ 12 W. It is tested and validated for full OEM interoperability.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | Network‑Switch |
| Form Factor | QSFP‑DD |
| Max. Data Rate | Up to 425 Gbps (4×100 Gbps PAM4 lanes) |
| Wavelength | 1310 nm |
| Max. Cable Distance | 500 m over SMF |
| Connector | MPO‑12 APC |
| Optical Components | EML lasers / PIN photodiode receivers |
| Modulation Format | PAM4 |
| Media Type | Single‑Mode Fiber (SMF) |
| Digital Diagnostics (DDM/DOM) | Supported |
| Transmit Power (per lane) | -2.9 to +4.0 dBm |
| Receiver Sensitivity | Typically < -5.9 dBm |
| Power Consumption | ≤ 12 W |
| Operating Temperature Range | 0 °C to 70 °C (Commercial) |
| Protocols Compliance | IEEE 802.3bs, QSFP‑DD MSA, CMIS 4.0, 100G Lambda MSA |
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Warranty
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Standard Warranty Policy
Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
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If your products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
Frequently Questions and Answers
Refund Policy
At Network-switch.com, we aim to provide the best customer experience and ensure that your purchases meet your expectations. If for any reason you are not satisfied with your purchase, please read our return and refund policy below to understand your options.
Returns
You have the right to return products purchased from Network-switch.com under the following conditions:
- Eligibility for Return: Items can be returned within 30 days from the date of delivery, provided that the product is in its original condition, unused, and in the original packaging.
- Non-returnable Items: Certain items such as personalized or custom-made products, and items marked as non-returnable at the time of purchase, cannot be returned.
- Return Process: To initiate a return, please contact our customer support team at help@network-switch.com. You will be provided with instructions on how to return the product and obtain a return authorization number if necessary.
Refunds
- Refund Process: Once we receive your returned item and inspect it, we will process your refund to the original method of payment within 7 business days.
- Refund Conditions: Refunds will be issued for the purchase price of the item, excluding any shipping, handling, or other additional fees. If the product is returned damaged, used, or missing parts, a partial refund may be issued.
Exchanges
If you would prefer to exchange an item for a different size, color, or model, please follow the same return process. Once we receive the returned product, we will send the replacement at no additional charge, based on availability.
Shipping Costs
- Return Shipping Fees: You are responsible for paying the return shipping costs unless the item is defective, damaged, or incorrect.
- Refund for Shipping Costs: Shipping costs are non-refundable, except in the case of defective or incorrect items.
- Restocking Fees: You would be chagred about 30% of the product price when return the item, unless the item is defective, damaged, or incorrect.
Damaged or Incorrect Items
If you receive a damaged or incorrect item, please contact our customer service team within 7 days of receiving the product. We will exchange once the return is received.
Contact Us
If you have any questions or concerns about returns or refunds, please contact us at:
Email: help@network-switch.com
Before returning any products, please contact us to explain the issues you are experiencing. In many cases, we can resolve the problem through technical support, and you won't need to return the product.
If there are irreparable defects in the device, you can return it to us for repair or replacement under our twelve-month warranty. Simply reach out to us, and we will provide you with a return code, our return address, and any additional instructions.
Please do not return any items without first contacting us. We will guide you through the process, including the appropriate shipping methods.