NVIDIA Mellanox MSN2700-BS2FO 40GbE 1U Open Ethernet Switch with ONIE, P2C Airflow: This is a 1U Open Ethernet switch from the MSN2700 family configured for 40GbE-only operation, providing 32 QSFP+ ports in a standard-depth chassis. The "F" airflow code denotes forward (P2C, Power-to-Connector) airflow, and the "O" suffix denotes factory-loaded ONIE (Open Network Install Environment); the unit ships without a production NOS preinstalled. This is a 40GbE-only Ethernet switch, not a 100GbE or InfiniBand platform. This is a refurbished unit.
Engineering Context
The chassis provides 32 QSFP+ ports at 40GbE line rate with non-blocking forwarding. P2C (Power-to-Connector, forward) airflow draws cool aisle air from the PSU side toward the port side — the inverse of C2P units — making this SKU correct for racks where the cold aisle faces the PSU side and the hot aisle faces the ports. ONIE provides a hardware-agnostic loader that accepts any compatible NOS image. The chassis includes 2 hot-swappable AC power supplies for N+1 redundancy and an x86 management CPU.
Deployment & Use Cases
40GbE leaf switching for HPC and storage clusters in racks oriented for forward airflow, aggregation switching in data centers standardized on P2C airflow throughout the row, MLAG pairs across racks where airflow direction must match adjacent compute, and disaggregated networking deployments where the operator selects the NOS via ONIE.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSN2700-BS2FO
Port Configuration: 32 × QSFP+
Ethernet Speed per Port: 40GbE
Form Factor: 1U
Chassis Depth: Standard
Airflow: P2C (Forward, Power-to-Connector)
Power Supplies: 2 × AC, hot-swappable
Management CPU: x86
Pre-loaded OS: ONIE (no production NOS included)
Protocol: Ethernet only (40GbE)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Mellanox QSFP+ optics and DAC/AOC cables (MC2210130 40GbE DAC, MC2210411 40GbE SR4, MC6709309 40GbE AOC) and third-party QSFP+-compliant 40GbE optics. P2C airflow is fixed and not field-reversible — this SKU is NOT interchangeable with C2P ("R") units in racks requiring matching airflow direction. ONIE-loaded units do NOT include a Cumulus, Onyx, or SONiC license; OS licensing must be procured separately. Not configured for 100GbE — this is a 40GbE-only platform. Not a VPI/InfiniBand switch. Rail kit is NOT included.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS performs ONIE boot validation, port-by-port link testing, and PSU/fan diagnostics on every refurbished MSN2700 switch. Browse our full Mellanox Ethernet catalog at https://www.tes-itsolutions.com. Standard handling time is 1–3 business days.