Mellanox MCX455A-ECAT ConnectX-4 1× 40GbE QSFP+ PCIe x16 Network Adapter | New
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Mellanox Network Adapter · New
Mellanox MCX455A-ECAT — 1-port 40GbE Adapter
40GbE QSFP+ connectivity for servers and storage platforms
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Genuine Mellanox 1-port 40GbE adapter with QSFP+ ports. The upgrade that unblocks backups, VM migrations and storage traffic without touching your switching architecture.
Where It Pays Off
Moving from 1GbE to 40GbE changes what a server can do: file serving stops being the bottleneck, VM live-migrations finish in minutes instead of hours, and iSCSI/NVMe-oF storage links keep up with the array behind them.
- VMware / Hyper-V / Proxmox hosts — more bandwidth per VM, fewer bottlenecks
- Storage networks — iSCSI, NFS and NVMe-oF links that keep pace with flash arrays
- Backups — backup windows shrink when the pipe is 40GbE
Genuine Vendor Option
Vendor-branded adapters mean vendor driver support and no third-party compatibility caveats in picky platforms. Sealed new stock at parallel-import pricing.
Technical Specifications
| Model | Mellanox MCX455A-ECAT |
|---|---|
| Ports | 1-port |
| Speed | 40GbE |
| Connector | QSFP+ |
| Condition | New |
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Building or upgrading hosts?
NIC + transceiver + switch bundles tuned to your platform — ask for volume pricing.
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Product images are representative. Condition: New (parallel import). All trademarks belong to their respective owners.
