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High-profile PCIe card with single QSFP28 port

Mellanox Technologies

Mellanox Technologies MCX455A-ECAT 100GbE QSFP28 NIC accessory

SKU CH-ENKA-VJE27 MPN MCX455A-ECAT

A single-port 100GbE network adapter with a QSFP28 interface for PCI Express x16 slots

  • Single 100GbE port for high-throughput networking
  • QSFP28 interface supports 100GbE connectivity
  • PCIe x16 slot provides host bandwidth
  • ConnectX-4 VPI engine handles 100GbE traffic
  • High-profile bracket fits standard server chassis

Single-port 100GbE QSFP28 adapter for high-speed

The Mellanox MCX455A-ECAT is a ConnectX-4 VPI network interface controller built for a PCIe x16 slot. It delivers 100GbE throughput over a single QSFP28 port in a high-profile bracket. The card targets servers and workstations that require low-latency 100 gigabit connectivity.

Suits builders adding one 100GbE link to a PCIe

This adapter fits environments needing a single high-bandwidth port with QSFP28 cabling. It is not for systems limited to PCIe x8 or smaller slots, nor for deployments requiring multiple ports from one bracket. Buyers needing fibre-channel or InfiniBand protocols beyond VPI support should verify compatibility separately.

PCIe x16 slot requirement decides fit

The card installs only in a full-size PCIe x16 slot, so the motherboard or riser must provide that physical and electrical connection. Without an x16 slot the adapter cannot be used, making this the primary constraint for any installation plan.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $121.99
Pricier than about 90% of the 8,808 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the high-profile bracket fit a standard PCI Express x16 slot?

Yes, the card uses a high-profile bracket and installs in a PCI Express x16 slot.

Which way does the QSFP28 transceiver insert into the port?

Align the transceiver key with the port notch and push straight in until the latch clicks.

When should the QSFP28 module be replaced?

Replace the module if link errors rise or the 100GbE connection becomes unstable.

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