The chapter contains the following sections:
These are the release notes for the NVIDIA® ConnectX®-6 Dx adapters firmware. This firmware supports the following protocols:
Ethernet - 1GbE, 10GbE, 25GbE, 40GbE, 50GbE1, 100GbE1, 200GbE2
PCI Express 4.0, supporting backwards compatibility for v3.0, v2.0 and v1.1
1. Speed that supports both NRZ and PAM4 modes in Force mode and Auto-Negotiation mode.
2. Speed that supports PAM4 mode only.
When connecting an NVIDIA-to-NVIDIA adapter card in ETH PAM4 speeds, Auto-Neg should always be enabled.
Please make sure to use a PCIe slot that can supply the required power to the ConnectX-6 Dx adapter card as stated in section Specifications in the adapter card’s User Manual.
This firmware supports the devices and protocols listed below:
| NVIDIA SKU | Legacy OPN | PSID | Device Name |
| 900-9X624-0055-SI0 / 900-9X624-0055-SB0 | MCX623432AN-GDA | MT_0000000325 | ConnectX-6 Dx EN adapter card; 50GbE for OCP 3.0; with host management; Dual-port SFP56; PCIe 3.0/4.0 x16; Internal Lock |
| 900-9X658-0016-MB0 | MCX623435MN-CDAB | MT_0000000326 | ConnectX-6 Dx EN adapter card; 100GbE for OCP 3.0; with Multi-Host and host management; Single-port QSFP56; PCIe 3.0/4.0 x16; Internal Lock |
| 900-9X658-0056-SB1 | MCX623436AN-CDAB | MT_0000000327 | ConnectX-6 Dx EN adapter card; 100GbE for OCP 3.0; with host management; Dual-port QSFP56; PCIe 3.0/4.0 x16; Internal Lock |
| 900-9X6AP-0055-ST1 | MCX623102AN-GDAT | MT_0000000353 | ConnectX-6 Dx EN adapter card; 50GbE; Dual-port SFP56; PCIe 4.0/3.0 x16 |
| 900-9X6AP-0053-ST0 | MCX623102AN-ADAT | MT_0000000355 | ConnectX-6 Dx EN adapter card; 25GbE; Dual-port SFP28; PCIe 4.0/3.0 x16 |
| 900-9X661-0053-SQ0 | MCX621102AN-ADAT | MT_0000000356 | ConnectX-6 Dx EN adapter card; 25GbE; Dual-port SFP28; PCIe 4.0/3.0 x8 |
| 900-9X6AG-0056-ST1 | MCX623106AN-CDAT | MT_0000000359 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; PCIe 4.0/3.0 x16; |
| 900-9X6AG-0018-ST0 | MCX623105AN-VDAT | MT_0000000362 | ConnectX-6 Dx EN adapter card; 200GbE; Single-port QSFP56; PCIe 4.0 x16; No Crypto |
| 900-9X658-0086-SB0 | MCX623436AC-CDAB | MT_0000000394 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management; Dual-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot; |
| 900-9X671-0016-SN0 | MCX623405AN-CDAN | MT_0000000396 | ConnectX-6 Dx EN adapter card; 100GbE OCP2.0; With Host management; Type 2; Single-port QSFP56; PCIe 4.0 x16; No Crypto |
| 900-9X661-0083-ST1 | MCX621102AC-ADAT | MT_0000000430 | ConnectX-6 Dx EN adapter card; 25GbE; Dual-port SFP28; PCIe 4.0 x8; Crypto and Secure Boot |
| 900-9X6AP-0085-ST0 | MCX623102AC-GDAT | MT_0000000432 | ConnectX-6 Dx EN adapter card; 50GbE; Dual-port SFP56; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X6AP-0075-ST0 | MCX623102AS-GDAT | MT_0000000433 | ConnectX-6 Dx EN adapter card; 50GbE; Dual-port SFP56; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X6AG-0016-ST0 | MCX623105AN-CDAT | MT_0000000434 | ConnectX-6 Dx EN adapter card; 100GbE; Single-port QSFP56; PCIe 4.0 x16; No Crypto |
| 900-9X6AG-0038-ST0 | MCX623105AS-VDAT | MT_0000000435 | ConnectX-6 Dx EN adapter card; 200GbE; Single-port QSFP56; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X6AG-0086-ST0 | MCX623106AC-CDAT | MT_0000000436 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X6AG-0076-ST0 | MCX623106AS-CDAT | MT_0000000437 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X6AG-0048-ST0 | MCX623105AC-VDAT | MT_0000000442 | ConnectX-6 Dx EN adapter card; 200GbE; Single-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X658-0048-SB0 | MCX623435AC-VDAB | MT_0000000457 | ConnectX-6 Dx EN adapter card; 200GbE; OCP3.0; With Host management ; Single-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X658-0038-SI0 | MCX623435AS-VDAI | MT_0000000458 | ConnectX-6 Dx EN adapter card; 200GbE; OCP3.0; With Host management ; Single-port QSFP56; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X671-0046-SN0 | MCX623405AC-CDAN | MT_0000000459 | ConnectX-6 Dx EN adapter card; 100GbE OCP2.0; With Host management ; Type 2; Single-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X6AP-0083-ST0 | MCX623102AC-ADAT | MT_0000000460 | ConnectX-6 Dx EN adapter card; 25GbE; Dual-port SFP28; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X658-0076-SI0 | MCX623436AS-CDAI | MT_0000000471 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management ; Dual-port QSFP56; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X658-0018-SB0 | MCX623435AN-VDAB | MT_0000000512 | ConnectX-6 Dx EN adapter card; 200GbE; OCP3.0; With Host management; Single-port QSFP56; PCIe 4.0 x16; No Crypto; |
| 900-9X6AP-0065-ST0 | MCX623102AE-GDAT | MT_0000000529 | ConnectX-6 Dx EN adapter card; 50GbE; Dual-port SFP56; PCIe 4.0 x16; Crypto; No Secure Boot |
| 900-9X6AG-0028-ST0 | MCX623105AE-VDAT | MT_0000000530 | ConnectX-6 Dx EN adapter card; 200GbE; Single-port QSFP56; PCIe 4.0 x16; Crypto; No Secure Boot |
| 900-9X671-0018-SN0 | MCX623405AN-VDAN | MT_0000000602 | ConnectX®-6 Dx EN adapter card, 200GbE OCP2.0, With Host management, Type 2, Single-port QSFP56, PCIe 4.0 x16, No Crypto, No Bracket |
| 900-9X6AG-0066-ST0 | MCX623106AE-CDAT | MT_0000000528 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; PCIe 4.0 x16; Crypto; No Secure Boot |
| 900-9X624-0075-SI0 | MCX623432AS-GDAI | MT_0000000472 | ConnectX-6 Dx EN adapter card; 50GbE OCP3.0; With Host management ; Dual-port SFP56; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X661-0063-ST0 | MCX621102AE-ADAT | MT_0000000536 | ConnectX-6 Dx EN adapter card; 25GbE ; Dual-port SFP28; PCIe 4.0 x8; Crypto; No Secure Boot; |
| 900-9X624-0053-SI0 / 900-9X624-0003-SB0 | MCX623432AN-ADA | MT_0000000357 | ConnectX-6 Dx EN adapter card; 25GbE for OCP 3.0; with host management; Dual-port SFP28; PCIe 3.0/4.0 x16 |
| 900-9X624-0083-SB0 | MCX623432AC-ADAB | MT_0000000440 | ConnectX-6 Dx EN adapter card; 25GbE OCP3.0; With Host management; Dual-port SFP28; PCIe 4.0 x16; Crypto and Secure Boot; |
| 900-9X624-0085-SB0 | MCX623432AC-GDAB | MT_0000000393 | ConnectX-6 Dx EN adapter card; 50GbE OCP3.0; With Host management; Dual-port SFP56; PCIe 4.0 x16; Crypto and Secure Boot; |
| 900-9X658-0066-SB0 | MCX623436AE-CDAB | MT_0000000456 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management ; Dual-port QSFP56; PCIe 4.0 x16; Crypto; No Secure Boot |
| 900-9X624-0063-SB0 | MCX623432AE-ADAB | MT_0000000455 | ConnectX-6 Dx EN adapter card; 25GbE OCP3.0; With Host management ; Dual-port SFP28; PCIe 4.0 x16; Crypto; No Secure Boot |
| 900-9X675-0046-MB0 | MCX623439MC-CDAB | MT_0000000652 | ConnectX-6 Dx EN adapter card; 100GbE OCP3.0; With Host management ; Single-port DSFP; Multi Host or Socket Direct;PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X624-0073-SB0 | MCX623432AS-ADAB | MT_0000000759 | ConnectX-6 Dx EN adapter card; 25GbE OCP3.0; With Host management ; Dual-port SFP28; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X6AP-0073-ST0 | MCX623102AS-ADAT | MT_0000000760 | ConnectX-6 Dx EN adapter card; 25GbE; Dual-port SFP28; PCIe 4.0 x16; Secure Boot; No Crypto |
| 900-9X658-0076-MB0 | MCX623436MS-CDAB | MT_0000000773 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management ; Dual-port QSFP56; Multi Host or Socket Direct;PCIe 4.0 x16; Secure Boot; No Crypto; Thumbscrew (Pull Tab) Bracket |
| 900-9X658-0056-MB0 | MCX623436MN-CDAB | MT_0000000771 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management ; Dual-port QSFP56; Multi Host or Socket Direct;PCIe 4.0 x16; No Crypto; Thumbscrew (Pull Tab) Bracket |
| 900-9X675-0076-MB0 | MCX623430MS-CDAB | MT_0000000774 | ConnectX-6 Dx EN adapter card; 100GbE OCP3.0; With Host management ; Dual-port DSFP; Multi Host or Socket Direct;PCIe 4.0 x16; Secure Boot; No Crypto; Thumbscrew (Pull Tab) Bracket |
| 900-9X658-0018-MB1 / 900-9X658-0018-MI0 | MCX623435MN-VDA | MT_0000000358 | ConnectX-6 Dx EN adapter card; 200GbE for OCP 3.0; with Multi Host and host management; Single-port QSFP56; PCIe 4.0 x16 |
| 900-9X658-0016-SB0 | MCX623435AN-CDAB | MT_0000000694 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management ; Single-port QSFP56; PCIe 4.0 x16; No Crypto |
| 900-9X6AG-0046-ST0 | MCX623105AC-CDAT | MT_0000000709 | ConnectX-6 Dx EN adapter card; 100GbE; Single-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X658-0046-SB0 / 900-9X658-0046-SI0 | MCX623435AC-CDA | MT_0000000695 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management ; Single-port QSFP56; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X6AG-0026-ST0 | MCX623105AE-CDAT | MT_0000000710 | ConnectX-6 Dx EN adapter card; 100GbE; Single-port QSFP56; PCIe 4.0 x16; Crypto; No Secure Boot |
| 900-9X658-0026-SB0 | MCX623435AE-CDAB | MT_0000000696 | ConnectX-6 Dx EN adapter card; 100GbE; OCP3.0; With Host management ; Single-port QSFP56; PCIe 4.0 x16; Crypto; No Secure Boot |
| 900-9X624-0053-MB0 | MCX623432MN-ADAB | MT_0000000808 | ConnectX-6 Dx EN adapter card; 25GbE OCP3.0; With Host management ; Dual-port SFP56; Multi Host or Socket Direct; PCIe 4.0 x16; No Crypto |
| 900-9X663-0083-SQ0 | MCX621202AC-ADAT | MT_0000000846 | ConnectX-6 Dx EN adapter card; 25GbE; With active cooling; Dual-port SFP28; PCIe 4.0 x8; Crypto and Secure Boot |
| 900-9X663-0073-SQ0 | MCX621202AS-ADAT | MT_0000000845 | ConnectX-6 Dx EN adapter card; 25GbE; With active cooling; Dual-port SFP28; PCIe 4.0 x8; Secure Boot; No Crypto |
| 900-9X6AK-0086-SQ0 | MCX623106TC-CDAT | MT_0000000761 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; Enhanced-SyncE & PTP GM support; PPS In/Out; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X6AK-0086-SQ1 | MCX623106GC-CDAT | MT_0000000762 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; Enhanced-SyncE & PTP GM support and GNSS; PPS Out ; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X6AJ-0086-ST0 | MCX623106PC-CDAT | MT_0000000500 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; with PPS In/Out; PCIe 4.0 x16; Crypto and Secure Boot |
| 900-9X6AK-0056-ST1 | MCX623106GN-CDAT | MT_0000000744 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; Enhanced-SyncE & PTP GM support and GNSS; PPS Out ; PCIe 4.0 x16; No Crypto; Tall Bracket |
| 900-9X6AJ-0056-ST0 | MCX623106PN-CDAT | MT_0000000438 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; with PPS In/Out; PCIe 4.0 x16; No Crypto |
| 900-9X6AK-0056-ST0 | MCX623106TN-CDAT | MT_0000000743 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; Enhanced-SyncE & PTP GM support; PPS In/Out; PCIe 4.0 x16; No Crypto; Tall Bracket |
| 900-9X6AJ-0066-SQ0 | MCX623106PE-CDAT | MT_0000000606 | ConnectX-6 Dx EN adapter card; 100GbE; Dual-port QSFP56; with PPS In/Out; PCIe 4.0 x16; Crypto; No Secure Boot; Tall Bracket |
The following are the drivers’ software, tools, switch/HCA firmware versions tested that you can upgrade from or downgrade to when using this firmware version:
| Supported Version | |
| ConnectX-6 Dx Firmware | 22.39.3004 / 22.39.2048 / 22.39.1002 |
| MLNX_OFED | 23.10-2.1.3.1 / 23.10-1.1.9.0 / 23.10-0.5.5.0 Note: For the list of the supported Operating Systems, please refer to the driver’s Release Notes. |
| MLNX_EN (MLNX_OFED based code) | 23.10-2.1.3.1 / 23.10-1.1.9.0 / 23.10-0.5.5.0 Note: For the list of the supported Operating Systems, please refer to the driver’s Release Notes. |
| WinOF-2 | 23.10.50000 / 23.7.50000 Note: For the list of the supported Operating Systems, please refer to the driver’s Release Notes. |
| MFT | 4.26.1 / 4.26.0 / 4.25.0 Note: For the list of the supported Operating Systems, please refer to the driver’s Release Notes. |
| mstflint | 4.26.1 / 4.26.0 / 4.25.0 Note: For the list of the supported Operating Systems, please refer to the driver’s Release Notes. |
| FlexBoot | 3.7.300 |
| UEFI | 14.32.17 |
| Cumulus | 5.4 onwards |