Juniper QDD-2X400G-FR4-P (740-170960) Compatible 800GBASE-2FR4 Twin-port QSFP-DD PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Optical Transceiver Module

We used this module during the validation phase of a new 800G deployment. The testing process went smoothly, and the module provided the performance we expected during our evaluation. It helped us confirm the design before moving into a larger rollout.

One thing that stood out was how easy it was to coordinate this purchase with the rest of our hardware order. The specifications were clearly presented, making it simple to confirm we were selecting the correct transceiver before placing the order.

I appreciate that replacing or moving the module during maintenance is straightforward. The connector design and clear markings make it easy to identify the correct transceiver, even when working in a fully populated rack. That made routine maintenance much more convenient.

The LC interface made cabling much easier in our existing setup. Installation was quick, and the link came up without any adjustments. It's a practical choice for our deployment.

Recognized instantly by our Juniper gear. The 2x400G links have been stable over a 1km run with acceptable light levels. Exactly what we needed.

Deployed these 2x400G FR4 optics for a campus interconnect. The LC ports feel solid, and optical power levels are within spec over a 1.5km run. No issues so far.

This module was installed during our final project acceptance testing. Every required check was completed successfully on the first attempt, which helped us finish the handover on schedule. It's always reassuring when hardware performs exactly as expected.

We purchased this module as part of a repeat order, and the experience was just as good as the first time. The product was exactly as described, arrived on schedule, and the consistency between batches makes it a supplier we can rely on for future projects.

The order was dispatched quickly and reached us within the expected delivery window. Since this was for a scheduled installation, receiving the modules on time helped keep the project moving without any delays.

Before placing the order, Talia patiently answered several questions about the module and recommended the most suitable option for our application. Communication was prompt, professional, and never felt rushed. It's always nice to work with someone who understands the products well.