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-QSFP-DD-400G-FR4-S 400G Base-FR4 QSFP-DD PAM4 CWDM4 1310nm 2km Duplex LC SMF FEC Optical Transceiver Module
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NS-QSFP-DD-400G-FR4-S 400G Base-FR4 QSFP-DD PAM4 CWDM4 1310nm 2km Duplex LC SMF FEC Optical Transceiver Module
$647.00
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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.
QSFP‑DD‑400G‑FR4‑S Transceiver Module | 400 Gbps, 1310 nm CWDM PAM4, Duplex LC, 2 km
Product Overview
The NS-QSFP‑DD‑400G‑FR4‑S is a high-performance QSFP‑DD optical transceiver module designed for 400 Gigabit Ethernet over single-mode fiber. It uses four CWDM optical wavelengths (1271 nm, 1291 nm, 1311 nm, 1331 nm), each carrying 100 Gbps PAM4, aggregating to 425 Gbps optical throughput.
With FEC support on the host side, this module reliably supports up to 2 km reach via a duplex LC connector. Standard compliant with IEEE 802.3cu 400GBASE‑FR4, QSFP‑DD MSA, and 100G Lambda MSA specifications, it includes Digital Diagnostic Monitoring (DDM/DOM) for real-time optical feedback.
Built for universal compatibility, it works seamlessly with devices from Cisco, Juniper, Arista, Dell, Huawei, HPE Aruba, Ciena, Infinera, and more.
Compatible Brands
The NS-QSFP‑DD‑400G‑FR4‑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
Designed to meet the NS-QSFP‑DD‑400G‑FR4‑S specification, the module internally converts eight 50 Gbps electrical lanes into four 100 Gbps CWDM optical channels.
Each lane carries a distinct wavelength and is combined via CWDM multiplexing. Operation requires host-side FEC (Forward Error Correction) for optimal link integrity. Power consumption is typically below 10 W, and the operating range spans 0 °C to 70 °C.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | Network‑Switch |
| Form Factor | QSFP‑DD |
| Max. Data Rate | Up to 425 Gbps (4 × 100 Gbps PAM4 lanes) |
| Wavelengths | CWDM: 1271, 1291, 1311, 1331 nm |
| Max. Cable Distance | Up to 2 km over SMF |
| Connector | Duplex LC |
| Optical/Laser Type | CWDM EML lasers / PIN photodiode receivers |
| Media Type | Single‑Mode Fiber (SMF) |
| Digital Diagnostics (DDM/DOM) | Supported |
| Transmit Power (per lane) | Approx. –3.3 to +3.5 dBm |
| Receiver Sensitivity | Typical < –7.3 dBm |
| Power Consumption | ≤ 10 W |
| Operating Temperature Range | 0 °C to 70 °C (Commercial) |
| Protocol Compliance | IEEE 802.3cu (400GBASE‑FR4), QSFP‑DD MSA, 100G Lambda MSA |
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Warranty
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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.
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- 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.
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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
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- 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
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Contact Us
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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.