NVIDIA Mellanox MSX6730-FS2F2 36-Port FDR 56 Gb/s InfiniBand 1U Switch: This is a SwitchX-2 based 36-port QSFP+ InfiniBand 1U managed switch (MPN MSX6730-FS2F2) with dual AC power supplies, x86 dual-core management CPU, standard-depth chassis, rear-to-front airflow, and MLNX-OS firmware. This IS a fully managed FDR (56 Gb/s per port) fabric switch. This IS NOT an EDR (100 Gb/s) or HDR (200 Gb/s) switch, and IS NOT a single-PSU model. This is a refurbished unit.
Engineering Context
The MSX6730-FS2F2 provides 36 QSFP+ ports at FDR 56 Gb/s (4x14G NRZ), delivering 4.032 Tb/s non-blocking aggregate switching capacity through the SwitchX-2 ASIC. The x86 dual-core management CPU runs MLNX-OS (release 3.6.8012 or later) for embedded subnet manager, SNMP, and fabric routing. Dual hot-swap AC PSUs deliver power redundancy. Standard-depth 1U chassis with rear-to-front airflow integrates with conventional hot-aisle/cold-aisle data center cooling. Sub-microsecond port-to-port latency is typical for the SwitchX-2 generation.
Deployment & Use Cases
HPC cluster leaf switching for FDR 56 Gb/s fabrics. AI training cluster InfiniBand interconnects. Lustre, GPFS, and BeeGFS storage backplanes. Financial real-time analytics platforms. Cluster expansion or replacement for an existing FDR-class fabric where a managed leaf switch is required.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number: MSX6730-FS2F2
- Form Factor: 1U Standalone, Standard Depth
- Port Count: 36 x QSFP+
- Switching ASIC: SwitchX-2
- Per-Port Data Rate: FDR 56 Gb/s InfiniBand (4x14G)
- Aggregate Switching Capacity: 4.032 Tb/s non-blocking
- Management CPU: x86 Dual-Core
- Operating System: MLNX-OS (3.6.8012 or compatible)
- Power Supply: 2 x AC (redundant, hot-swap)
- Airflow: Rear-to-Front
- Network Management: Fully Managed
- Condition: Refurbished - Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with Mellanox FDR-capable HCAs (ConnectX-3, ConnectX-3 Pro) at 56 Gb/s line rate; FDR10 (40 Gb/s) HCAs autonegotiate to lower link rates. Requires a subnet manager on the fabric (embedded SM via MLNX-OS for small to mid-size; OpenSM or NVIDIA UFM for production scale). Both PSUs must be powered for hot-swap redundancy benefit. Not a substitute for newer EDR (100 Gb/s) or HDR (200 Gb/s) switches where higher per-port rates are required. Verify rear-to-front airflow matches your aisle convention.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every InfiniBand switch for per-port link integrity, MLNX-OS boot, both-PSU operation, fan tray health, and chassis condition before shipment. We provide expert consultation on InfiniBand fabric design, global shipping, and comprehensive warranty. Visit T.E.S IT-SOLUTIONS. Handling time 1-3 business days.

