Mellanox sb7890 edr infiniband switch
1u high‐density managed rackmount switch with dual hot‐swap psus and fans. dimensions: 1.72" × 16.84" × 27". supports front‐to‐rear or reverse airflow. features 36 non‐blocking qsfp28 edr 100gb/s ports (backward‐compatible with fdr/qdr), 7.2tbps switching capacity, sub‐90ns latency, and mellanox switch‐ib 2 asic.
runs mlnx‐os with cli, webui, snmp, and subnet manager. includes adaptive routing, sharp, congestion control, and dynamic/static subnet management.
hardware is legacy; firmware updates and vendor support require active nvidia/mellanox entitlement or third‐party maintenance (buyer should take note).