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ConnectX-6 NICs

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ConnectX-6 NICs Overview

ConnectX-6 NICs includes eight NVIDIA server network adapters across the ConnectX-6 VPI and ConnectX-6 Dx EN families. The VPI models support InfiniBand and Ethernet through single- or dual-port QSFP56 interfaces at 100Gb/s or 200Gb/s, while the ConnectX-6 Dx models provide Ethernet connectivity from 25GbE to 200GbE through SFP28 or QSFP56 ports. The adapters use PCIe Gen4 x8 or x16 host interfaces with PCIe Gen3 compatibility and tall brackets. Available configurations differ in protocol support, port count, network speed, PCIe width, Secure Boot, and cryptographic capability for server networking environments.

MCX653105A-ECAT is a ConnectX-6 VPI adapter with one QSFP56 port supporting HDR100 and EDR InfiniBand as well as Ethernet speeds up to 100GbE. It uses a PCIe Gen3 or Gen4 x16 host interface and is supplied with a tall bracket. The single-port configuration provides InfiniBand and Ethernet connectivity for servers operating in 100Gb/s compute, storage, and data networks.

MCX653106A-ECAT is a dual-port ConnectX-6 VPI adapter with two QSFP56 interfaces supporting HDR100 and EDR InfiniBand and Ethernet speeds up to 100GbE. The card connects to the server through PCIe Gen3 or Gen4 x16 and includes a tall bracket. Its two network interfaces support servers requiring multiple InfiniBand or Ethernet connections from a single PCIe adapter.

MCX653105A-HDAT is a single-port ConnectX-6 VPI adapter supporting HDR InfiniBand at 200Gb/s and Ethernet at up to 200GbE through one QSFP56 interface. It uses a PCIe Gen3 or Gen4 x16 host connection and is supplied with a tall bracket. The adapter provides protocol-selectable high-speed networking for servers connected to InfiniBand or Ethernet infrastructures.

MCX653106A-HDAT provides two QSFP56 ports, each supporting HDR InfiniBand and Ethernet speeds up to 200Gb/s. This ConnectX-6 VPI adapter uses a PCIe Gen3 or Gen4 x16 host interface and includes a tall bracket. Its dual-port configuration supports servers requiring two high-speed InfiniBand or Ethernet network connections through one adapter card.

MCX621102AC-ADAT is a ConnectX-6 Dx Ethernet adapter with two SFP28 ports supporting 1GbE, 10GbE, and 25GbE. It connects through a PCIe Gen4 x8 interface with backward compatibility for earlier PCIe generations. The card is supplied with a tall bracket and has cryptographic functions and Secure Boot enabled for dual-port server Ethernet connectivity.

MCX623105AC-CDAT is a single-port ConnectX-6 Dx Ethernet adapter with one QSFP56 interface supporting Ethernet speeds from 1GbE to 100GbE. It uses a PCIe Gen4 x16 host interface with PCIe Gen3 compatibility and includes a tall bracket. This configuration has both cryptographic functions and Secure Boot enabled for 100GbE server networks.

MCX623106AN-CDAT is a dual-port ConnectX-6 Dx Ethernet adapter with two QSFP56 interfaces supporting speeds up to 100GbE per port. The card uses a PCIe Gen4 x16 host interface with backward compatibility for PCIe Gen3 and is supplied with a tall bracket. This SKU has cryptographic functions and Secure Boot disabled.

MCX623105AS-VDAT is a single-port ConnectX-6 Dx Ethernet adapter supporting speeds up to 200GbE through one QSFP56 interface. It connects to the server through a PCIe Gen4 x16 host interface with PCIe Gen3 compatibility and includes a tall bracket. Secure Boot is enabled, while cryptographic functions are disabled, distinguishing it from the crypto-enabled ConnectX-6 Dx configurations.

FAQ

Which models in the ConnectX-6 NICs category support both InfiniBand and Ethernet, and what maximum network speeds do they provide?

MCX653105A-ECAT and MCX653106A-ECAT support HDR100 and EDR InfiniBand plus Ethernet up to 100GbE. MCX653105A-HDAT and MCX653106A-HDAT support HDR InfiniBand at 200Gb/s and Ethernet up to 200GbE.

What is the port difference between MCX653105A-ECAT and MCX653106A-ECAT for 100Gb/s VPI server connections?

MCX653105A-ECAT provides one QSFP56 port, while MCX653106A-ECAT provides two. Both support HDR100 and EDR InfiniBand, Ethernet speeds up to 100GbE, and a PCIe Gen3/4 x16 host interface.

How do MCX653105A-HDAT and MCX653106A-HDAT differ when deploying 200Gb/s InfiniBand or 200GbE connections?

MCX653105A-HDAT is a single-port QSFP56 adapter, while MCX653106A-HDAT is dual-port. Both use PCIe Gen3/4 x16 and support HDR InfiniBand at 200Gb/s as well as Ethernet up to 200GbE.

Which network ports, PCIe interface, and security capabilities are provided by the MCX621102AC-ADAT?

It provides two SFP28 ports supporting 1GbE, 10GbE, and 25GbE, together with a PCIe Gen4 x8 interface that supports PCIe Gen3 operation. Both cryptographic functions and Secure Boot are enabled.

What are the main differences between MCX623105AC-CDAT and MCX623106AN-CDAT in 100GbE server configurations?

MCX623105AC-CDAT has one QSFP56 port with Crypto and Secure Boot enabled. MCX623106AN-CDAT has two QSFP56 ports with both features disabled. Both use PCIe Gen4 x16 and support Ethernet speeds from 1GbE to 100GbE.

Does MCX623105AS-VDAT support 200GbE while retaining Secure Boot without cryptographic functions?

Yes. MCX623105AS-VDAT provides one QSFP56 port with Ethernet speeds up to 200GbE and uses a PCIe Gen4 x16 host interface. Secure Boot is enabled, while cryptographic functions are disabled.

Which model in the ConnectX-6 NICs category uses SFP28 ports instead of QSFP56, and what speeds does it support?

MCX621102AC-ADAT. It provides two SFP28 ports supporting 1GbE, 10GbE, and 25GbE. The other seven listed adapters use single- or dual-port QSFP56 interfaces for connectivity at up to 100Gb/s or 200Gb/s.

Can all eight ConnectX-6 NICs listed in this category operate in servers with PCIe Gen3 slots?

Yes. The four ConnectX-6 VPI adapters support PCIe Gen3/4 x16. The MCX621102AC-ADAT uses PCIe Gen4 x8 with Gen3 support, while the three QSFP56 ConnectX-6 Dx adapters use PCIe Gen4 x16 with Gen3 compatibility.

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