Dell 00272F - Mellanox ConnectX-4 EN Dual-Port 100GbE QSFP28 Adapter (Refurbished)
Technical Identity
Dell OEM NVIDIA Mellanox ConnectX-4 EN network adapter (Dell PN 00272F): dual-port 100GbE QSFP28, PCIe 3.0 x16, equivalent to NVIDIA Mellanox MCX416A-CCAT. Dell PowerEdge qualified. Hardware offloads include RoCE v2, NVMe-oF over RoCE, stateless TCP/UDP/IP offload, VXLAN/NVGRE/Geneve overlay encapsulation, SR-IOV with up to 256 virtual functions, and ASAP² (eSwitch) accelerated virtual switching. Ethernet only (EN ASIC variant). Condition: Refurbished Grade A.
Specifications

Brand: Dell (OEM NVIDIA Mellanox ConnectX-4)
Dell PN: 00272F
Equivalent NVIDIA PN: MCX416A-CCAT
ASIC: ConnectX-4 EN
Ports: 2x QSFP28
Port Speed: 100GbE per port (auto-negotiates to 50/40/25/10GbE)
Protocol: Ethernet only
Host Interface: PCIe 3.0 x16
Offloads: RoCE v2, NVMe-oF, VXLAN/NVGRE/Geneve, SR-IOV (256 VFs), ASAP² eSwitch
Form Factor: PCIe HHHL with low-profile and full-height brackets
Qualification: Dell PowerEdge
Condition: Refurbished Grade A

What This Is NOT

NOT InfiniBand-capable. The EN suffix indicates Ethernet-only firmware - this card cannot run an IB stack.
NOT a ConnectX-5/6/7 card. ConnectX-4 generation only, PCIe 3.0 (not 4.0/5.0), and no native GPUDirect Storage acceleration.
NOT a generic NVIDIA retail SKU. Dell OEM firmware - verify operation outside Dell PowerEdge chassis before deploying in HPE, Supermicro or Lenovo hosts.
NOT supplied with QSFP28 transceivers, DAC or AOC cables - order interconnects separately.

Compatibility

Servers: Dell PowerEdge R640/R740/R740xd/R7425/R7525/R750 (native firmware match); generic x86 hosts with a PCIe 3.0 x16 slot when the workload tolerates OEM-locked firmware.
Switches: Pairs with NVIDIA Spectrum / Spectrum-2 Ethernet switches (SN2700, SN2410, SN3700) and any standards-compliant 100GbE QSFP28 switch.
Cables & Transceivers: QSFP28 DAC (MCP1600 family), QSFP28 AOC (MFA1A00 family) and QSFP28 SR4/LR4 optics (MMA1B00-C100D, MMS1C10-CM, etc.).
Operating Systems: RHEL/CentOS 7+, Ubuntu 18.04+, Windows Server 2016+, VMware ESXi 6.5+, FreeBSD - using MLNX_OFED or the in-distro mlx5 driver.

Frequently Asked Questions (FAQ)
Q. What is the Dell 00272F?
Dell OEM Mellanox ConnectX-4 EN dual-port 100GbE QSFP28 adapter on PCIe 3.0 x16, Dell PowerEdge qualified, with RoCE v2, NVMe-oF over RoCE, VXLAN/NVGRE/Geneve overlays and SR-IOV.
Q. Is 00272F InfiniBand capable?
No - Ethernet only (ConnectX-4 EN ASIC). For VPI dual-protocol (IB + Ethernet), use a CX4 VPI part such as MCX456A-ECAT.
Q. How does 00272F compare to Dell 0NHYP5?
Both are Dell OEM ConnectX-4 EN dual-port 100GbE QSFP28 adapters - OEM revision/firmware build difference, functionally equivalent at the network level.
Q. Can 00272F run in non-Dell servers?
Usually yes for basic 100GbE networking, but Dell OEM firmware may restrict advanced features outside Dell PowerEdge chassis - validate in a non-production host first.
Q. What condition does T.E.S IT-SOLUTIONS supply?
Refurbished Grade A - EEPROM-verified, link-tested at 100GbE, cosmetically inspected and shipped from EU stock.
Why buy from T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS is a Europe-based data-center networking specialist. Every unit is MPN-identified, EEPROM-verified and cosmetically inspected before leaving our EU warehouse. Multi-currency invoicing, worldwide express shipping and free pre-sale technical consultation included.