NEW RETAIL Mellanox MCX354A-FCBT Infiniband FDR + 40GbE Ethernet 40GbE dual port QSPF+ CONNECTX-3 VPI HCA network card PCI 3.0 format
Home-lab and HPC builders wanting affordable dual-port FDR InfiniBand or 40GbE connectivity with VPI flexibility on legacy-supported drivers.
Buy on Amazon.ca →You'll be taken to Amazon.ca to complete your purchase.
About this product
Key features
- 40GbE per port, dual port HCA network card + Infiniband FDR
Affiliate disclosure: This product links to Amazon. As an Amazon Associate, Joel & Nanz Inc. earns from qualifying purchases at no extra cost to you.
Specifications
- Type
- Dual-port VPI HCA
- Model
- Mellanox MCX354A-FCBT (ConnectX-3 VPI)
- Modes
- VPI — InfiniBand or Ethernet per port
- Ports
- 2x QSFP+
- Speed
- InfiniBand FDR (56G) and 40GbE Ethernet
- Bus Interface
- PCIe 3.0 x8
Pros
- ✓VPI flexibility — each port runs InfiniBand FDR or 40GbE
- ✓Dual QSFP+ ports for high-bandwidth server links
- ✓Widely used, well-documented in HPC/home-lab communities
- ✓Affordable used/new entry into FDR InfiniBand
Cons
- ×ConnectX-3 is an older generation — newer OFED/driver support is limited/legacy
- ×No QSFP+ cables or optics included
- ×Higher idle power than modern NICs; firmware tuning sometimes needed
FAQ
Can it do both InfiniBand and Ethernet?
Yes, as a VPI adapter each port can be set to InfiniBand (FDR, 56G) or Ethernet (40GbE) via firmware/driver configuration.
Is it still driver-supported?
ConnectX-3 is legacy; it works with older MLNX_OFED and in-box drivers on many Linux/Windows versions, but newest OFED releases have dropped it — verify your OS.
What slot does it need?
A PCIe 3.0 x8 slot for full dual-port bandwidth.