Cisco Compatible 800GBASE-DR8 QSFP-DD PAM4 1310nm 500m DDM MPO-16/APC SMF Optical Transceiver Module, Support 2 x 400G-DR4 and 8 x 100G-DR

We've sourced optics from several vendors over the years, and this is one of the few products that required almost no follow-up after delivery. The documentation was complete, the module matched the specifications, and the entire deployment went according to plan.

The overall quality exceeded my expectations. The module feels durable, the finish is clean, and everything from the connector to the housing appears to be well manufactured. It gave us confidence before we even powered it on.

I was working against a tight deployment schedule, so delivery time was important. The order was processed quickly, and the shipment arrived a little earlier than expected. That helped us complete the installation without delaying the project.

Worked well in a mixed 400G/800G spine setup. The breakout flexibility made migration planning much easier than expected.

The shipping process was efficient from start to finish. Tracking information was updated promptly, and the package arrived on the scheduled date. Everything was securely packed, so the module reached us in perfect condition.

Received this module as part of a larger equipment order. The serial numbers, labels, and specifications were all clearly marked, which made inventory management much easier. After installation, the module passed our acceptance testing without requiring any adjustments.

We've mixed these with OEM optics in the same environment, and they've performed just as well. Great option when you're trying to manage costs without sacrificing quality.

This 800G DR8 module works well with Cisco systems and supports flexible breakout to 2×400G or 8×100G, which makes network expansion very efficient.

Was hunting for a cost-effective 800G-DR8 to light up a short-reach link between two buildings on campus. Stumbled across QSFPTEK while digging through some networking forums. Honestly wasn't expecting much at this price point. Took a shot and it's been rock solid. Breakout to 2x400G works exactly as advertised. Glad I found these guys.

Designed for AI cluster interconnects, the module delivers stable performance, and its 500-meter transmission range fully meets the requirements for data center deployment. It maintains excellent thermal control during prolonged operation, with no instances of link instability or bit errors.