NVIDIA/Mellanox MMS4A00-XM/MMS4C10 (980-9IAH1-00XM00/980-9IAU0-00XM01) Compatible SiPh 1.6T DR8 Twin-port OSFP224 IHS/Closed Finned Top PAM4 1310nm 500m Dual MPO-12/APC SMF DDM InfiniBand XDR Transceiver Module for Quantum-3 Air Cooled Switches

We've been migrating our AI training cluster to Quantum‑3 switches and needed to quadruple the leaf‑spine capacity on a shoestring budget. My senior engineer found QSFPTEK after comparing pricing across three other vendors (the savings on twin‑port 1.6Ts ended up being more than enough to fund half the additional optics we needed). I also reached out to their sales team beforehand to confirm compatibility with the air‑cooled Quantum‑3 chassis, and they responded within two hours with a detailed cross‑reference sheet. Solid product, solid support.

We were scrambling to source twin-port 1.6T DR8 OSFP224 transceivers to expand our Quantum-3 air-cooled IB switches for our new GPU training rack build; original Nvidia parts had insane lead times. Found this brand while deep-diving Google search for SiPh compatible XDR optics after a senior coworker also recommended their transceiver lineup. Installed these closed fin IHS top modules with dual MPO-12/APC pigtails, stable 500m reach on our pre-run singlemode trunk cables. Silicon photonics design keeps operating temps way lower than I expected under sustained full load. Saved us weeks of project delay, couldn’t be happier with the real-world performance.

I sent a tender to the sales rep. Talia, and the models she recommended were a perfect fit for our installation setup. Thanks!

I'd give them five stars: great quality, super fast, and they really know their stuff. The customer rep was super helpful, and whenever I sent a question, they got back to me right away.

Installed these 1.6T DR8 modules in our cluster and they've been running stable under continuous AI workloads. Link up was instant, and performance has been consistent with no noticeable errors or drops so far.

Accepted by my Q3200-RA with no issue, thanks.

Great value for the price, and the packaging was nice too. The sales rep was patient and kind when answering all my questions. 5 stars for both the product and the service!

I bought this transceiver for my switch at the data center. Found QSFPTEK online while comparing prices, and their support rep, Talia, was super helpful with compatibility questions. The module works perfectly, no drops. Shipping was fast and the packaging was solid. Really good value for the price. I’ll definitely buy from QSFPTEK again.

Other vendors were out or preorder. Stumbled on QSFPTEK – heard of 'em. They were sold out too but refilled quick after I asked. Shipping took a few extra days, understandable given the chip crunch. The 1.6T module is well built and works great in my air-cooled switch. Solid product.

Bought the NVIDIA 1.6T module (p/n 202910) to upgrade my InfiniBand leaf switch. This thing is a beast that came online instantly on my q3200-ra. Huge shoutout to Alisha for patiently checking the twin-port MPO specs with me before I ordered. Real helpful. Rock solid for 2+ weeks now. Definitely coming back for more.