NVIDIA Mellanox MSX6720-FS2F2 36-Port FDR 56 Gb/s InfiniBand 1U Switch (BBU Ready): This is a SwitchX-2 based 36-port QSFP+ InfiniBand 1U switch (MPN MSX6720-FS2F2) with dual AC power supplies, x86 dual-core management CPU, standard-depth chassis, and battery backup unit (BBU) readiness. This IS a fully managed FDR (56 Gb/s per port) leaf switch with rear-to-front airflow. This IS NOT the EDR (100 Gb/s) SB7700/SB7800 generation, and IS NOT the short-depth -FB variant. This is a refurbished unit.
Engineering Context
The MSX6720-FS2F2 (SX 6700 series) delivers 36 QSFP+ ports at FDR 56 Gb/s (4x14G NRZ), totaling 4.032 Tb/s non-blocking aggregate switching capacity. The x86 dual-core management CPU runs MLNX-OS, supporting embedded subnet manager, SNMP, and fabric routing. The chassis is BBU-ready, allowing optional battery backup integration for graceful shutdown during data center power events. Dual hot-swap AC PSUs and rear-to-front airflow round out the platform's redundancy and thermal profile.
Deployment & Use Cases
HPC compute leaf switching where BBU integration aligns with site DR procedures. AI training cluster fabrics requiring FDR 56 Gb/s per node. Financial trading platforms demanding low InfiniBand latency. Lustre, GPFS, and BeeGFS storage fabrics. Sites with strict graceful-shutdown requirements during utility power loss.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSX6720-FS2F2
Family: SX 6700
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
BBU: Battery Backup Unit Ready (BBU sold separately)
Power Supply: 2 x AC (redundant, hot-swap)
Airflow: Rear-to-Front
Condition: Refurbished - Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with Mellanox FDR-capable host channel adapters such as ConnectX-3 and ConnectX-3 Pro at 56 Gb/s line rate. FDR10 HCAs autonegotiate to 40 Gb/s. Requires a subnet manager on the fabric (embedded SM via MLNX-OS for smaller fabrics; OpenSM or NVIDIA UFM for production scale). The BBU module itself is not included with this refurbished switch and must be sourced separately if BBU operation is required. Not interoperable as a one-for-one replacement for EDR or HDR switches.
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.