We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with silver metal bracket, two QSFP56 cages and gold PCIe x16 edge connector

BFKK

BFKK MCX653106A-HDAL 200GbE Dual Port QSFP56 PCIe 3.0/4.0 x16 Network Card

SKU CH-1Z63-8MK4F

Dual-port 200GbE QSFP56 card with ConnectX-6, PCIe 3.0/4.0 x16 and 215M msg/s

  • Dual 200 GbE ports deliver 200 Gb/s aggregate throughput
  • PCIe 3.0 and 4.0 x16 host interface ensures broad server compatibility
  • ConnectX-6 ASIC processes 215 million messages per second for low-latency workloads
  • Hardware XTS-AES encryption offloads security tasks from the CPU
  • Two QSFP56 cages support 10, 25, 40, 50, 100 and 200 GbE speeds

Dual-port 200 GbE QSFP56 adapter

This Mellanox ConnectX-6 card adds two QSFP56 ports to a PCIe 3.0 or 4.0 x16 slot, delivering up to 200 Gb/s of total Ethernet bandwidth. It targets data-centre servers and high-performance workstations that need low-latency 10, 25, 40, 50, 100 or 200 GbE connectivity.

Hardware XTS-AES encryption

On-board encryption offloads storage security from the host CPU, while flexible pipelines accelerate network-function virtualisation and service chaining. The design supports 50 G PAM4 and 25 G NRZ signalling, cutting CPU utilisation at a commit rate of 215 million messages per second.

Verify PCIe 3.0 or 4.0 x16 slot and QSFP56 cabling

Confirm the motherboard provides a full x16 electrical link at Gen 3.0 or 4.0 and that the chassis can accommodate the dual-port bracket. You will also need compatible QSFP56 transceivers or direct-attach cables rated for the desired speed tier.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $1,281.99
Pricier than about 92% of the 891 comparable items (median $30.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

No published specifications for this item yet.

Questions about this item

Will the QSFP56 ports need firmware updates or transceiver swaps when moving between 50G PAM4 and 25G NRZ links?

The card supports both 50G PAM4 and 25G NRZ service rates on its two QSFP56 ports, so compatible transceivers can be changed without replacing the adapter itself.

What caps sustained throughput before the PCIe 4.0 x16 host interface saturates?

The adapter's maximum total bandwidth is 200Gb/s across both ports, which is the limiting factor before the Gen4 x16 link reaches its ceiling.

How much heat and power should I budget for continuous 200GbE operation in a rack?

Hardware encryption, high message-rate offload and PCIe 3.0/4.0 support keep CPU utilisation low, reducing overall platform power draw during all-day line-rate traffic.

More in PCIe Expansion Cards

Similar items