Mellanox MCX4121A-ACAT Alternative NIC

Mellanox
Dual Port 25G SFP28 PCIe
Intel® XXV710
SFP28
2
Mellanox MCX4121A-ACAT Compatible Network Interface Card

Mellanox compatible MCX4121A-ACAT - Key Features

  • Compatibility: Mellanox
  • NIC Category: Dual Port 25G SFP28 PCIe
  • Controller Silicon: Intel® XXV710
  • Controller Type: Ethernet
  • Connector Type: SFP28
  • Number of Ports: 2
  • Data Rate per Port: 25/10/1GbE
  • Bus Interface: PCIe v3.0 x8

Mellanox MCX4121A-ACAT Price

SKUSKU:25G-NIC-XXV710-2O
Lead timeMade to Order - 2 Weeks
Standard recommended retail price ex VAT:
€342.30
Choice of 0+
Telecoms & Integrators Globally

Mellanox compatible MCX4121A-ACAT Specifications

Controller Silicon
Intel® XXV710
Controller Type
Ethernet
Connector Type
SFP28
Number of Ports
2
Data Rate per Port
25/10/1GbE
Bus Interface
PCIe v3.0 x8
Bus Transfer Rate
8GT/s
Storage Over Ethernet
iSCSI, NFS
iSCSI
Supported
FCoE
Not Supported
Jumbo Frames
Supported
PXE Boot
Supported
Wake-on-LAN (WoL)
Not Supported
Network Virtualization
SR-IOV; VMDq; VLAN; VXLAN; NVGRE; GENEVE
Power
Power consumption (max): 14.1W; Operating voltage: 3.3V and 12V
Interconnection Distance
Per SFP28 used
Environmental Specifications
Operating temperature: 0 °C to 55 °C; Air Flow Minimum of 100 LFM (DAC) and 250 LFM for SR Optics required; Storage temperature: -40 °C to 70 °C; Relative Humidity: 5% to 90% (non-condensing)
Physical Characteristics
Dimensions (W x H): 146mm x 69mm; Ships with low-profile bracket attached
LED Status Indicators
LINK (solid) and ACTIVITY (blinking); LINK SPEED (green=25 Gbps; yellow=10 Gbps)
Supported Operating Systems
Windows Server 2012/2016/2019/2022; Windows 10/11; Linux (RHEL, SLES, Ubuntu); VMware ESXi; FreeBSD
I/O Virtualization Features
SR-IOV (128 VFs); VMDq (64 pools); VMDQ-DCB; Packet Direct
Protocol Support
IEEE 802.3by 25GBASE; IEEE 802.3x Flow Control; IEEE 802.3ad Link Aggregation; IEEE 802.1Q VLAN; IEEE 802.1Qaz ETS; IEEE 802.1Qbb PFC; IEEE 1588 PTP
Management Features
PXE Boot; iSCSI Boot; SNMP; RMON; LLDP; DCBX; Intel PROSet Utility
Compliance
CE, FCC, RoHS

Mellanox compatible MCX4121A-ACAT Datasheet

v2

Complete technical specifications and product details

Updated:Jan 2, 2026Format:PDF

Mellanox compatible MCX4121A-ACAT Description

For Your convenience, we have matched popular NIC card manufacturer SKUs with our product portfolio, allowing choosing cost efficient alternative. As Mellanox MCX4121A-ACAT is Dual Port 25G Gigabit Ethernet SFP28 PCI-Express Network Interface Card, its functionality & features corresponds our product 25G-NIC-XXV710-2O. 25G-NIC-XXV710-2O is based on Intel® XXV710, it has 2 x 25/10/1GbE SFP28 interfaces and features load balancing functions, superior performance on multi-core processor servers and can offer leading network virtualization features, several remote boot options and wide manageability features. 25G-NIC-XXV710-2O card is compliant with IEEE 802.3by and 25GEthernet.org specification and provides interoperability with many 25GbE switches and network cards. 25G-NIC-XXV710-2O card is backwards compatible with 1/10GbE speeds gives users great flexibility in network design, additionally card support synchronization of internal clocks according to a network master clock.. 25G-NIC-XXV710-2O (as alternative to Mellanox MCX4121A-ACAT) card provides as well flexibility for LAN and SAN networking by iSCSI, NFS protocol support and support synchronization of internal clocks according to a network master clock.

25G-NIC-XXV710-2O card can run on most operating systems and can be used in Dell, Lenovo, IBM, HPE, Supermicro, Cisco and many other brand servers. With a wide selection of our SFP28 Optical Transceiver Modules and Direct-Attach Cables (DAC) can achieve superior flexibility in connectivity and network design. Our team will be glad to help You find right network connectivity solution for Your Mellanox system – Contact Us!

For better overview, You are welcome to use our PCIe Network Interface Card Guide.