Cisco QDD-400G-SR8-S Compatible 400G QSFP-DD SR8 PAM4 850nm 100m DOM MTP/MPO-16/APC MMF Optical Transceiver Module

What stood out here was the consistency between units. We checked several modules side by side before deployment, and the test results were very close across the batch.

Short-reach connections were exactly what we needed this time. It kept the setup simple and left us with a much cleaner rack than the previous arrangement.

The product quality is good, and the support team helped us confirm compatibility before ordering.

Excellent 400G optical modules. They are fully compatible with Cisco equipment and provide stable, high-speed transmission over our MPO fiber infrastructure.

Vi el video de su módulo 400G en YouTube, revisé los videos e informes de compatibilidad y finalmente me decidí a comprarlo. Además, conseguí algunos descuentos. En general, la experiencia de compra fue buena y vale la pena recomendarlo. Sin embargo, si pudieran asignar inventario en México, ¡recibiría los productos más rápido!

Bought these modules at the price that only a fraction of Cisco! Unexpectedly they work well on my N9K-C9332D-GX2B.

These SR8 QSFP-DD transceivers work well in my 200G NICs. Talia is kind and helpful, and satisfied with this shopping experience!

We are planning to upgrade to 400G network and need some transceivers that are compatible with my Cisco switches. I was skeptical about these products at first, but after reading the test reports they provided, I decided to buy a couple of modules to try. Their delivery was very fast and the product packaging was very good. All the indicators were within the normal range and they were able to correctly identify my switch.

After reaching out to multiple vendors regarding the 400G QSFP-DD optical modules, I found that their delivery timelines didn't align with the urgency of our test project. Eventually, I opted for QSFPTEK and was pleasantly surprised by their swift shipping, allowing us to acquire the modules promptly to meet our project needs.

This is my second time buying from QSFPTEK, and I gotta say, they've been solid. Last year, I grabbed some 100G QSFP28 SR4 and 10G modules for a project, and they've been chugging along without a hitch. So, when my company needed some 400G modules for our spine-leaf connections, QSFPTEK was the first place I thought of. And man, was I relieved to see they had them in stock. Talia threw in a recommendation for an MTP-16 OM4 cable to hook up the transceiver to my switch, so I figured why not? Three days later, the goods were at my door. Couldn't be happier with the whole deal.