About the MFS1S00-H035V
The NVIDIA Mellanox MFS1S00-H035V is a 35-meter QSFP28 active optical cable for 200Gb/s InfiniBand HDR systems. Note that this SKU uses the QSFP28 form factor rather than QSFP56 — verify your switch and adapter port types before ordering. NVIDIA issued an End-of-Life notice for this variant in March 2022. Our stock of 900 factory-sealed units is among the last available new-in-box supply. At $528 per unit (60% below retail), this represents exceptional value for data centers maintaining existing QSFP28-based HDR infrastructure.
Typical Use Case
The 35m QSFP28 variant is deployed in mid-scale HPC clusters and research computing environments where the spine-to-leaf distance is 30–40 meters and the infrastructure uses QSFP28 port switches such as earlier-generation Mellanox SB7800 series.
New In Box vs. Compatible — Why It Matters
NVIDIA Quantum HDR switches and ConnectX-6/7 adapters perform firmware-level cable authentication at link initialization. Genuine OEM cables like the MFS1S00-H035V pass all NVIDIA firmware checks without modification, ensuring full 200G performance and BER compliance. Third-party compatible cables can trigger firmware warnings and cause intermittent link drops under sustained load.
