NVIDIA Mellanox MSB7800-ES2F Switch-IB 2 EDR InfiniBand 36-Port 1U Switch: This is a 1U rackmount InfiniBand switch with 36 QSFP28 ports at 100Gb/s, built on the Switch-IB 2 ASIC. The unit ships with dual AC power supplies, P2C (front-to-back) airflow, and a rail kit. This is the externally managed standard-depth variant, not a managed appliance running its own Subnet Manager. This is a refurbished unit.
Engineering Context
The MSB7800-ES2F uses the Switch-IB 2 silicon, which supports SHArP in-network collective offload, adaptive routing, and dynamic congestion control. Sub-90ns port-to-port latency is typical for the platform. Aggregate switching bandwidth reaches 7.2Tb/s. The 1U chassis runs P2C airflow and accepts dual hot-swap AC PSUs for redundancy. Standard depth makes it compatible with mainstream server cabinets.
Deployment & Use Cases
Top-of-rack EDR aggregation for AI training clusters, GPU compute pods, and HPC workloads such as CFD, weather, molecular dynamics, and seismic. Storage fabrics for Lustre, GPFS, BeeGFS, and Ceph over InfiniBand. Building the leaf layer of a fat-tree EDR fabric where a separate host runs OpenSM as the Subnet Manager.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSB7800-ES2F
Form Factor: 1U rackmount, standard depth
Switch ASIC: Switch-IB 2
Ports: 36 x QSFP28
Per-Port Rate: 100Gb/s EDR InfiniBand
Aggregate Bandwidth: 7.2Tb/s
Management: Externally managed (host-based Subnet Manager)
Power: 2 x AC power supplies (redundant)
Airflow: P2C (front-to-back)
Included: Rail kit
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with ConnectX-4 and ConnectX-5 EDR HCAs and with Mellanox EDR copper, AOC, and optical cabling. Externally managed: requires a host running OpenSM (or equivalent Subnet Manager such as UFM); does not run an embedded SM. P2C airflow is fixed and not field-reversible to C2P. The standard-depth chassis will not fit short-depth telecom or edge cabinets. AC power only; no DC PSU option on this SKU.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS bench-tests every switch for full port link-up, PSU redundancy, fan operation, and external SM enumeration before shipment. Handling time is 1-3 business days with global shipping and warranty.