NVIDIA Mellanox MSX1036B-1SFS SX1036 40GbE Ethernet Switch, 36x QSFP+ Ports, 1U, MLNX-OS, 1x AC PSU, P2C Airflow: This enterprise Ethernet switch is the NVIDIA Mellanox SX1036, part number MSX1036B-1SFS. It is a 1U rack-mount managed switch with 36 QSFP+ ports providing 40GbE per port (2.88 Tb/s aggregate switching capacity). The -1SFS suffix denotes 1x AC power supply, short-depth chassis, and P2C (power-to-connector) airflow. It runs MLNX-OS. This is a refurbished unit, tested by T.E.S IT-SOLUTIONS.
Engineering Context
The SX1036 is a non-blocking, cut-through Ethernet switch delivering 2.88 Tb/s of aggregate bandwidth across 36 QSFP+ ports at 40GbE each. Forwarding latency is approximately 300 nanoseconds. The switch supports L2/L3 switching, VXLAN gateway, ECMP, and BGP routing via MLNX-OS. Each QSFP+ port can be broken out to 4x 10GbE using breakout cables, providing up to 144 x 10GbE ports. The P2C airflow direction is designed for hot-aisle/cold-aisle datacenter layouts where cold air enters from the connector side. Power consumption is approximately 250W typical with 1x AC PSU.
Deployment & Use Cases
Top-of-rack 40GbE switching for VMware ESXi, KVM, and Hyper-V virtualization clusters. Spine or leaf switch in 40G Ethernet fabrics for enterprise and cloud data centers. Storage networking backbone for iSCSI and NFS at 40GbE. Breakout mode: 144x 10GbE ports for high-density server connectivity. HPC cluster interconnect over Ethernet with RoCE v2 support.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSX1036B-1SFS
Series: SX1036
Type: Managed Ethernet Switch
Ports: 36x QSFP+ (40GbE each)
Aggregate Bandwidth: 2.88 Tb/s
Latency: ~300ns cut-through
Operating System: MLNX-OS
Power Supply: 1x AC PSU
Airflow: P2C (Power-to-Connector)
Form Factor: 1U Rack-Mount
Power Consumption: ~250W typical
RoHS: RoHS6 compliant
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Ethernet Only: This is a 40GbE Ethernet switch. It does not support InfiniBand. For InfiniBand switching, use SX6036 or Quantum series. QSFP+ Ports: Accepts QSFP+ (40GbE) transceivers, DAC cables, and AOC cables. Also supports 4x10GbE breakout cables. Not compatible with QSFP28, QSFP56, or OSFP modules. Single PSU: This -1SFS variant ships with 1x AC PSU. For redundant power, a second PSU can be added separately. P2C Airflow: Power-to-connector direction. Not suitable for installations requiring C2P (connector-to-power) airflow without PSU/fan module swap. MLNX-OS: Does not support Cumulus Linux or SONiC natively. Predecessor: SX1016 (16-port 40GbE). Successor: SN2700 (Spectrum, 32x 100GbE).
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every refurbished switch for port functionality, PSU operation, fan module health, and firmware boot integrity. We provide expert consultation on Ethernet fabric design, global shipping with 1–3 business day handling, and a comprehensive warranty.