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QDD-400G-FR4-S
400G QSFP-DD Transceiver,400G-FR4,Duplex LC,2km Duplex SMF
Federal agencies and Fortune 500 operations source through ORM Systems.
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Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
QDD-400G-FR4-S is a 400G Ethernet transceiver module built in a QSFP-DD form factor that delivers a high-speed data rate of 400G. It features LC connectors for optical fiber communication and supports Ethernet protocols, making it ideal for use in data centers, telecom networks, and enterprise environments. The module is engineered for long-range optical transmission over single-mode fiber, meeting the rigorous demands of high-density networking applications.
QDD-400G-FR4-S is designed with compact, industry-standard physical dimensions that ensure seamless integration into modern high-speed switching architectures. Built for robust performance and reliability, this transceiver is optimized for long-reach connectivity while maintaining efficient power consumption and thermal performance; it provides a dependable solution for carriers and network equipment vendors requiring consistent, scalable 400G connectivity.
QDD-400G-FR4-S price is $3,436.00, a 47.3% saving from the Cisco list price of $6,516.00. QDD-400G-FR4-S is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QDD-400G-FR4-S for additional pricing. Browse the full Cisco 400G Optical Modules series or explore all Cisco products.
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| QDD-400G-FR4-S |  QDD-400-CU2M |  QDD-400G-LR8-S |  QDD-2X100-CWDM4-S |  QDD-400G-DR4-S | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP-DD | QSFP-DD | QSFP-DD | QSFP28 | QSFP-DD |
| Data Rate | 400G | 400G | 400G | 100G | 400G |
| Connector Type | LC | Twinaxial | LC | LC | LC |
| Transmission Distance | Long-Range | Short-Range | Long-Range | Short-Range | Short-Range |
| Max Distance | 2 km | 2 meters | 10 km | 2000 meters | 500 meters |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet / Fibre Channel | Ethernet, Fibre Channel |
| Network Interface | Fiber | Ethernet | Ethernet | Fiber | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | QDD-400G-FR4-S | QDD-400-CU2M | QDD-400G-LR8-S | QDD-2X100-CWDM4-S | QDD-400G-DR4-S |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Strong 2km SMF performance with consistent 400G throughput. Perfect for campus and metro connectivity.
Stable link performance and easy configuration. Great balance of reach and efficiency.
Reliable FR4 optics for medium range deployment. Maintains steady bandwidth under load.
Compact and efficient 400G solution. Delivered predictable performance across our fiber runs.
Installed quickly and operated flawlessly. No signal instability during peak utilization.
Excellent optical consistency and low error rates. Ideal for enterprise data center links.
Consistent 2km connectivity and strong interoperability. Highly satisfied with reliability.
The QDD-400G-FR4-S is a 400 Gb/s QSFP-DD optical transceiver supporting 4×100 G lanes over duplex LC SMF for up to 2 km.
It supports single-mode fiber (SMF) using duplex LC connectors for FR4 1310 nm transmission.
The transceiver delivers reliable links up to 2 km over standard single-mode fiber.
It is interoperable with all QSFP-DD–compliant switches, routers, and network interface cards from major vendors.
Yes, it meets IEEE 802.3cd, QSFP-DD MSA and RoHS specifications for 400 Gb/s FR4 operation.
It uses a 4-lane 1310 nm CWDM wavelength for each 100 Gb/s channel.
Yes, it provides real-time monitoring of optical power, temperature, voltage and laser bias current via a two-wire serial interface.
It operates under 15.5 W, ensuring efficient power utilization in high-density deployments.
It supports an operating temperature range of 0 °C to 70 °C (commercial) or –40 °C to 85 °C (industrial) variants.
Align and insert the QSFP-DD module into a compatible port until it clicks, then connect duplex LC fiber cables following polarity guidelines.
Yes, the module supports hot-insertion and removal without powering down the host system.
It is ideal for hyperscale data centers, service provider edge, backbone aggregation and high-performance computing interconnects.
Yes, it includes a one-year limited warranty covering defects in materials and workmanship.
Check the vendor’s compatibility matrix or run a short-link test in your network environment prior to full deployment.
Use built-in DDM registers accessible via I2C and vendor-provided network monitoring software for advanced diagnostics.
Order directly from authorized distributors or contact our sales team for verified sourcing and volume pricing.
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