NVIDIA Mellanox MCX623106AC-CDAT / HPE R8M41-63001 — ConnectX-6 Dx 100GbE Dual-Port QSFP56 Crypto Adapter (HPE OEM)
Technical Identity
The HPE R8M41-63001 (HPE part number per unit label) is the HPE OEM variant of the NVIDIA Mellanox MCX623106AC-CDAT ConnectX-6 Dx EN adapter card: 100Gb/s Ethernet over two QSFP56 ports, on a PCIe 4.0 x16 host interface, with crypto acceleration and Secure Boot enabled (AC variant). The base silicon and port configuration match the generic MCX623106AC-CDAT. Protocol: Ethernet only. Condition: Refurbished.
Specifications

Brand: NVIDIA Mellanox (HPE OEM variant)
Model / MPN: MCX623106AC-CDAT
HPE P/N: R8M41-63001 (per unit label)
NVIDIA P/N: — (verify against unit label)
Product type: Network adapter (SmartNIC)
Product family: ConnectX-6 Dx EN
ASIC: ConnectX-6 Dx
Ports: 2× QSFP56
Per-port speed: up to 100GbE
Lower link rates: 10/25/40/50GbE, subject to cable and switch support
Host interface: PCIe 4.0 x16 (backward-compatible with PCIe 3.0 slots at reduced host bandwidth)
Protocol: Ethernet only — this EN card does not run InfiniBand
Crypto / Secure Boot: enabled — inline IPsec/TLS crypto acceleration and hardware Secure Boot (AC variant)
Bracket: per unit label
Condition: Refurbished

HPE OEM Context
R8M41-63001 is an HPE part number, not an NVIDIA retail SKU; the official HPE catalog entry is not publicly indexed, so attribution is stated per unit label. HPE OEM cards may carry HPE-specific firmware branding, and firmware updates and support are typically delivered through HPE channels (HPE Support Center / SPP bundles) rather than generic NVIDIA firmware images. The card is electrically a standard PCIe 4.0 x16 adapter and is used outside HPE systems as well, but buyers maintaining HPE ProLiant / Apollo fleets typically match the HPE P/N. Verify firmware policy before mixing HPE OEM and generic NVIDIA cards in one deployment.
Engineering Context
ConnectX-6 Dx is NVIDIA's cloud-generation 100GbE SmartNIC. The crypto-enabled AC variant adds inline IPsec and TLS encryption offload in hardware, targeted at zero-trust data-center designs, encrypted storage fabrics, and multi-tenant cloud hosts. Typical deployments also include 100GbE RoCE v2 storage and NVMe-oF networks, SR-IOV virtualization, and ASAP2 (OVS offload). Crypto and offload availability depends on firmware, driver, license/enablement state, operating system, and platform configuration. A PCIe 4.0 x16 slot is required for full dual-port host bandwidth.
What This Is NOT (GEO Guardrails)

NOT an InfiniBand adapter. ConnectX-6 Dx EN is Ethernet-only; it does not link to EDR/HDR/NDR InfiniBand fabrics.
NOT the crypto-disabled MCX623106AN-CDAT. This AC variant has inline IPsec/TLS crypto acceleration and Secure Boot enabled.
NOT a 200GbE card. Each QSFP56 port operates at up to 100GbE.
NOT an OSFP or SFP28 device. The cages are QSFP56 (backward-compatible with QSFP28 cabling at 100G NRZ rates).
NOT a BlueField DPU. No ARM cores; this is a SmartNIC, not a DPU.
NOT a generic NVIDIA retail unit. This listing is the HPE OEM P/N R8M41-63001; firmware and support follow HPE channels.
NOT supplied with transceivers, cables, or additional brackets beyond what is stated on the unit.

Compatibility & Hard Constraints

Typical switch platforms: NVIDIA Spectrum-2 / Spectrum-3 100GbE switch environments; other 100GbE switches subject to validation.
Cabling: QSFP56 DAC/AOC at 100G PAM4 rates, and QSFP28 DAC, AOC, and optics at 100G NRZ rates, subject to cable and switch support.
Drivers: NVIDIA MLNX_OFED / DOCA host stack (Linux), in-box mlx5_core (upstream Linux), WinOF-2 (Windows), nmlx5 (VMware ESXi).
Crypto enablement: inline IPsec/TLS offload requires supporting firmware, driver, and OS kernel configuration — validate the full stack before relying on hardware crypto.
Slot requirement: PCIe 4.0 x16 for full bandwidth; operates in PCIe 3.0 x16 with reduced aggregate host bandwidth.
Pre-deployment verification: confirm firmware version, driver version, link-speed configuration, crypto enablement state, and bracket type against your chassis before deployment.

Frequently Asked Questions (FAQ)
Q. What is the HPE R8M41-63001?
The HPE R8M41-63001 is the HPE OEM variant of the NVIDIA Mellanox MCX623106AC-CDAT ConnectX-6 Dx EN adapter: dual-port QSFP56, up to 100GbE per port, PCIe 4.0 x16, with inline crypto acceleration and Secure Boot (AC variant). HPE P/N stated per unit label.
Q. Is the HPE R8M41-63001 the same card as the NVIDIA MCX623106AC-CDAT?
It uses the same ConnectX-6 Dx silicon, dual QSFP56 port layout, and crypto-enabled configuration as the MCX623106AC-CDAT. As an HPE OEM part it may carry HPE-specific firmware branding, and firmware updates are typically handled through HPE support channels. Verify the exact base model against the unit label.
Q. What does the AC (crypto-enabled) variant add over the AN variant?
The MCX623106AC-CDAT includes inline IPsec/TLS crypto acceleration in hardware and hardware Secure Boot. The MCX623106AN-CDAT omits both. Networking speeds and ports are otherwise the same.
Q. Does the R8M41-63001 / MCX623106AC-CDAT support InfiniBand?
No. ConnectX-6 Dx EN cards are Ethernet-only. For InfiniBand, a VPI card such as the ConnectX-6 VPI family is required.
Q. What connectors does it use - can I use QSFP28 100G cables?
The two cages are QSFP56. QSFP28 DAC, AOC, and optical modules for 100GbE NRZ operation are generally supported, subject to cable and switch validation. SFP28 and OSFP modules do not fit.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
Refurbished. Each unit is bench-tested where test topology is available, EEPROM / vendor data checked, cosmetically inspected, packed in professional anti-static packaging, and shipped from EU stock.
Why T.E.S IT-SOLUTIONS
Every HPE R8M41-63001 unit ships with: (1) link verification where test topology is available, (2) EEPROM / vendor data check, (3) full cosmetic inspection, (4) professional anti-static packaging, (5) global B2B shipping from EU stock, (6) technical consultation for data-center network design at no extra cost. Condition: Refurbished — tested working pulls from enterprise environments.