ConnectX-4 Lx EN MCX4121A-ACAT network interface card with 25Gb/s Ethernet connectivity addresses virtualized infrastructure challenges, delivering best-in-class and highest performance to various demanding markets and applications. The 25 Gigabit Ethernet adapter card provides true hardware-based I/O isolation with unmatched scalability and efficiency, achieves the most cost-effective and flexible solution for Web 2.0, Cloud, data analytics, database, and storage platforms.
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NVIDIA Mellanox MCX4121A-ACAT ConnectX®-4 Lx EN Network Interface Card, 25GbE Dual-Port SFP28, PCIe3.0 x 8, Tall&Short Bracket
Hot #119650
Hot #119650
US$ 259.00
FS P/N: MCX4121A-ACATFS P/N: MCX4121A-ACAT
5.4K Sold
24 Reviews
28 Questions
Models:
2939 In U.S. Warehouse, Get It By Jun 2, 2023
218 Back in stock, Get It By Jul 13, 2023
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Deliver to New York, 10010
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NVIDIA Mellanox MCX4121A-ACAT ConnectX®-4 Lx EN Network Interface Card, 25GbE Dual-Port SFP28, PCIe3.0 x8, Tall Bracket
Specifications
Manufacturer
MELLANOX TECHNOLOGIES INC
Controller
Mellanox Technologies MT27710 Family ConnectX-4 Lx
Ports
Dual
Technology
Ethernet
Supported Ethernet Speeds
25/10/1GbE
Interface Type
SFP28
Host Interface
PCIe 3.0 x8
Link Rate
8.0 GT/s
OS Support
Windows, RHEL/CentOS, VMware, FreeBSD, OFED and WinOF-2
Cabling Type
SFP28 Transceiver, DAC and AOC
RDMA
Yes
RoHS R6 Compliant
Yes
Product Spotlights
CPU Offloads
RDMA over Converged Ethernet (RoCE)
TCP/UDP/IP stateless offload
LSO, LRO, checksum offload
RSS (can be done on encapsulated packet), TSS, VLAN insertion/ stripping, Receive flow steering
Intelligent interrupt coalescence
Hardware-Based I/O Virtualization
Single Root IOV
Multi-function per port
Address translation and protection
Multiple queues per virtual machine
Enhanced QoS for vNICs
VMware NetQueue support
Enhanced Features
Hardware-based reliable transport
Collective operations offloads
Vector collective operations offloads
Extended Reliable Connected transport (XRC)
Dynamically Connected transport (DCT)
Enhanced Atomic operations
Advanced memory mapping support, allowing user mode registration and remapping of memory (UMR)
On demand paging (ODP)
registratio
Quality Certifications
Connectivity Solutions
Scenario 1
Scenario 2
See more
Scenario 1
View products Scenario 2
View products Scenario 3
View products Scenario 4
View products Features
ConnectX SmartNICs Deliver Unparalleled Performance and Efficiency
RDMA Technology Empowers EDC and HPC
RDMA allows real CPU offloads and kernel bypass, and, as such, RDMA-based applications provide better utilization of network HW resources while increasing speed and lowering link latencies.
Intelligent Offloads Capabilities for the Most Demanding Applications
NVIDIA® Mellanox® Ethernet adapter cards offer advanced hardware offloads to reduce CPU resource consumption and drive extremely high packet rates and throughput.
Application Server Compatibility
Mellanox Ethernet adapter cards are tested to ensure that support all of the mainstream devices on the market, such as Dell, HPE, Supermicro, Cisco servers, etc.
Supporting All Major OS Distributions
Mellanox NICs are tested to support all of the mainstream OSes on the market, such as Windows, RHEL/CentOS, Vmware, Linux, FreeBSD, etc.
Controller | ConnectX®-4 Lx | ConnectX®-5 | ConnectX®-5 | ConnectX®-5 | ConnectX®-6 Dx |
Ports | Dual-Port | Dual-Port | Single-Port | Dual-Port | Dual-Port |
Supported Ethernet Speeds | 25/10/1GbE | 25/10/1GbE | 100/50/40/25/10/1GbE | 100/50/40/25/10/1GbE | 100/50/40/25/10/1GbE |
Systems Interface Type | PCIe 3.0 x8 (8.0 GT/s) | PCIe 3.0 x8 (8.0 GT/s) | PCIe 3.0 x16 (8.0 GT/s) | PCIe 3.0 x16 (8.0 GT/s) | PCIe 4.0 x16 (16.0 GT/s) |
RDMA over Converged Ethernet (RoCE) |  | | | | |
Zero Touch RoCE (ZTR) | | | | | |
ASAP2 (Virtual Switch offload) | — | | | | |
SR-IOV | | | | | |
Hardware-based I/O Virtualization | | | | | |
NVMe-oF Target Offload | — | | | | |
Burst Buffer Offloads | — | | | | |
Hardware Offload of VXLAN, NVGRE, and GENEVE Overlay Networks | — | | | | |
Specifications
NVIDIA Mellanox MCX4121A-ACAT ConnectX®-4 Lx EN Network Interface Card, 25GbE Dual-Port SFP28, PCIe3.0 x8, Tall Bracket
ConnectX-4 Lx EN MCX4121A-ACAT network interface card with 25Gb/s Ethernet connectivity addresses virtualized infrastructure challenges, delivering best-in-class and highest performance to various demanding markets and applications. The 25 Gigabit Ethernet adapter card provides true hardware-based I/O isolation with unmatched scalability and efficiency, achieves the most cost-effective and flexible solution for Web 2.0, Cloud, data analytics, database, and storage platforms.
Specifications
Manufacturer
MELLANOX TECHNOLOGIES INC
Controller
Mellanox Technologies MT27710 Family ConnectX-4 Lx
Ports
Dual
Technology
Ethernet
Supported Ethernet Speeds
25/10/1GbE
Interface Type
SFP28
Host Interface
PCIe 3.0 x8
Link Rate
8.0 GT/s
OS Support
Windows, RHEL/CentOS, VMware, FreeBSD, OFED and WinOF-2
Cabling Type
SFP28 Transceiver, DAC and AOC
RDMA
Yes
RoHS R6 Compliant
Yes
Product Spotlights
CPU Offloads
RDMA over Converged Ethernet (RoCE)
TCP/UDP/IP stateless offload
LSO, LRO, checksum offload
RSS (can be done on encapsulated packet), TSS, VLAN insertion/ stripping, Receive flow steering
Intelligent interrupt coalescence
Hardware-Based I/O Virtualization
Single Root IOV
Multi-function per port
Address translation and protection
Multiple queues per virtual machine
Enhanced QoS for vNICs
VMware NetQueue support
Enhanced Features
Hardware-based reliable transport
Collective operations offloads
Vector collective operations offloads
Extended Reliable Connected transport (XRC)
Dynamically Connected transport (DCT)
Enhanced Atomic operations
Advanced memory mapping support, allowing user mode registration and remapping of memory (UMR)
On demand paging (ODP)
registratio
Quality Certifications
Connectivity Solutions
Scenario 1
Scenario 2
See more
Scenario 1
View products Scenario 2
View products Scenario 3
View products Scenario 4
View products Features
ConnectX SmartNICs Deliver Unparalleled Performance and Efficiency
RDMA Technology Empowers EDC and HPC
RDMA allows real CPU offloads and kernel bypass, and, as such, RDMA-based applications provide better utilization of network HW resources while increasing speed and lowering link latencies.
Intelligent Offloads Capabilities for the Most Demanding Applications
NVIDIA® Mellanox® Ethernet adapter cards offer advanced hardware offloads to reduce CPU resource consumption and drive extremely high packet rates and throughput.
Application Server Compatibility
Mellanox Ethernet adapter cards are tested to ensure that support all of the mainstream devices on the market, such as Dell, HPE, Supermicro, Cisco servers, etc.
Supporting All Major OS Distributions
Mellanox NICs are tested to support all of the mainstream OSes on the market, such as Windows, RHEL/CentOS, Vmware, Linux, FreeBSD, etc.
Controller | ConnectX®-4 Lx | ConnectX®-5 | ConnectX®-5 | ConnectX®-5 | ConnectX®-6 Dx |
Ports | Dual-Port | Dual-Port | Single-Port | Dual-Port | Dual-Port |
Supported Ethernet Speeds | 25/10/1GbE | 25/10/1GbE | 100/50/40/25/10/1GbE | 100/50/40/25/10/1GbE | 100/50/40/25/10/1GbE |
Systems Interface Type | PCIe 3.0 x8 (8.0 GT/s) | PCIe 3.0 x8 (8.0 GT/s) | PCIe 3.0 x16 (8.0 GT/s) | PCIe 3.0 x16 (8.0 GT/s) | PCIe 4.0 x16 (16.0 GT/s) |
RDMA over Converged Ethernet (RoCE) | | | | | |
Zero Touch RoCE (ZTR) | | | | | |
ASAP2 (Virtual Switch offload) | — | | | | |
SR-IOV | | | | | |
Hardware-based I/O Virtualization | | | | | |
NVMe-oF Target Offload | — | | | | |
Burst Buffer Offloads | — | | | | |
Hardware Offload of VXLAN, NVGRE, and GENEVE Overlay Networks | — | | | | |
Videos
Questions & Answers
All (28)Unanswered Question (1)Compatibility (8)LowProfile Bracket (3)VMWare OS (3)Windows 10 (3)Heatsink (2)CentOS7 (1)Dell Server (1)Devices Connection (1)Drivers (1)Firmware (1)MAC Address (1)Matching Product (1)PCIe Slot (1)RoCE (1)Tall Bracket (1)
Q:
by B***d on 10/25/2021
A:
by J***s on 10/25/2021
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Q:
by M***t on 08/26/2021
A:
by FS.COM on 08/26/2021
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Q:
by B***o on 08/25/2021
A:
by FS.COM on 08/26/2021
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Customer Reviews
j***n
Canada
January 24, 2023
works perfectly, delivered on time and packed perfectly with no damage. Effortless install under Windows 10
Verified Purchase
Helpful 0
Comment 0H***s
Finland
December 13, 2022
Have bought about half dozen, and all work as expected. This time very fast delivery too!
Verified Purchase
Helpful 0
Comment 0A***g
Finland
October 17, 2022
Plug and play, no issues, in a server running Proxmox VE 7.2-11, connected to a Mikrotik CRS518-16XS-2XQ-RM with FS generic 25G DAO.
Verified Purchase
Helpful 1
Comment 0See all reviews
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