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1. 8 optical channels, dual CS duplex connectors 2. Support 800G to 2x 400G-FR4 QSFP-DD application, no breakout cables required 3. 8x 106.25G PAM4 modulation 4. EML + PIN Laser 5. Max power consumption ≤18WSee more
Cisco Compatible 2x 400G FR4 QSFP-DD 800G transceiver module supports a max data rate of 850Gbps. It enables the fiber link of 2km over single-mode fiber (SMF) with dual duplex CS connectors. The 800 Gigabit Ethernet signal is carried over 4 wavelengths at 1271nm, 1291nm, 1311nm, and 1331nm. QSFPTEK manufactured 2x 400GBASE FR4 QSFP-DD complies with IEEE 802.3cu-2021, IEEE P802.3ck D3.0, QSFP-DD MSA HW Rev 6.01, CMIS Rev 5.0. DDM (digital diagnostics monitoring) function is supported on the 800G fiber optic transceiver to achieve real-time operating parameters monitoring. Adopting the Pulse-amplitude Modulation (PAM4) modulation, the FR4 QSFP-DD achieves 800 Gigabit Ethernet through 8x 106.25 PAM4 Retimed 2x400GAUI-4 C2M electrical interface. The 800G FR4 QSFP-DD is widely used for gigabit Ethernet, data centers, and 800G to 2x 400G applications.
Take a look at our test program to get the reliable and high-performance optical transceivers.
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Scenario 1: 800G to 800G Direct Connectivity
Scenario 2: 800G to 2x 400GE Connectivity
Utilize 8x electrial lanes and 8x optical lanes modulated at 100G PAM-4 per lane. On the output side, it convert 8x 106.25Gb/s electrical signal to 8x 106.25Gb/s optical signals. On the receiver side, it convert 8x 100Gb/s optical signal to 8x 100Gb/s electrical signals.
The QSFP-DD-800G-2FR4 module is designed with dual duplex CS connectors, while each connector can connect to a physically separate 400G FR4 module via a CS to LC OS2 duplex single-mode fiber. This enables 800G to 2x 400G breakout links without the need for using breakout fiber optic cables.
Every module is quality tested for compatibility in the multi-brand switches environment, which guarantees flawless operations.
Every unit sold undergoes rigorous quality testing, to ensure compatibility in the target switch environment, guaranteeing perfect operation.
Every module is qualified through rigorous procedures and advanced equipment to ensure high-quality and reliable optical devices for you.
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Compatible Cisco
Transceivers type CO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
The FR4 was chosen not because of its superior performance, but because it perfectly suits our existing limitations. Some of our legacy systems don't allow for major changes to the cabling structure, so compatibility optimizations can only be done at the module level. This model perfectly fits the "can continue running with existing resources" scenario, a very practical engineering choice, not an idealistic solution, but very useful.
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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0
Fast shipping and excellent communication throughout the process. Everything showed up exactly when promised.
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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0
Deployment went more smoothly than expected. The switch recognized it quickly, and it remained relatively stable under heavy traffic. Compared to the original manufacturer's price, QSFPTEK's solutions are indeed easier to budget. So far, we haven't encountered any abnormal alarms.
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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0
I reached out through the chat box asking which products would work for my connection setup, and the sales rep, Talia, recommended this 800G QSFP-DD module. Really appreciate it!
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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0
I ordered just one to try out first, and it worked great with my Cisco switch. So I ended up buying 30 more and got a discount. Thanks a lot!
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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0
The account manager responds promptly, and the product offers stable transmission and excellent performance.
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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0
Bought a pair of these mainly for a lab expansion project. We move hardware around pretty often during testing, and the modules have held up fine through multiple reinsertions. One small thing I liked is the latch feels solid, doesn’t have that loose feeling some cheaper optics do.
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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Installed these on a long-distance interconnect and they've been working flawlessly. Compatibility was smooth, signal quality has stayed stable, and the CS connectors made cable management much cleaner.
Transceivers typeCO-QSFP-DD-800G-2FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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0
The sales manager responded promptly, providing excellent service! Because I was continuing with this module, the QSFPTEK sales manager helped me ship the module in a timely manner. I will definitely choose them again!
Transceivers typeQDD-2X400G-FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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Installed these 800G 2FR4 modules in our AI cluster interconnect last month and they've been running reliably ever since. Link stability and DDM readings have been solid, and compatibility with our switches was seamless. The dual CS design also helped reduce cable congestion in a high-density rack. Good performance for the price.
Transceivers typeQDD-2X400G-FR4 | 2km | Dual Duplex CS/UPC
CompatibleCisco
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