Skip to main content

Picture 1 of 3

Stock photo
Stock photo
Mellanox DELL ConnectX-4 MCX4121C 20NJD 0MRT0D 25GbE SFP28 PCIe Ethernet Adapter - Picture 1 of 3
Mellanox DELL ConnectX-4 MCX4121C 20NJD 0MRT0D 25GbE SFP28 PCIe Ethernet Adapter - Picture 2 of 3
Mellanox DELL ConnectX-4 MCX4121C 20NJD 0MRT0D 25GbE SFP28 PCIe Ethernet Adapter - Picture 3 of 3

Dell ConnectX-4 CX4121C 25GbE SFP28 Dual Port PCIe NIC (MCX4121A-ACAT)

4.836 product ratings
ebl2018 (24991)
99.4% positive feedback
Price:
US $46.88
ApproximatelyC $65.48
Free shipping
Estimated delivery Tue, Oct 28 - Fri, Dec 5
Returns:
No returns, but backed by eBay Money back guarantee.
Condition:
Open box

About this product

Product Identifiers

BrandDell
MPNMCX4121A-ACAT, 020NJD, CX4121C, 406-BBLC, 20NJD
UPC0207403171003, 0884116349693
ModelMCX4121A-ACAT
eBay Product ID (ePID)27029030076

Product Key Features

Compatible BrandFor Dell
External InterfacesEthernet/ Network Cards
Form FactorConnectX-4
Number of Ports2 Ports
TypeWired
Compatible PortPCI Express, PCI Express x8

All listings for this product

Buy It Now
Any Condition
New
Pre-owned
Dell 020NJD Mellanox CX4121C ConnectX-4 Lx 25Gbps Dual-Port SFP Network Card
item 1 Dell 020NJD Mellanox CX4121C ConnectX-4 Lx 25Gbps Dual-Port SFP Network Card
C $41.89
Dell Mellanox CX4121C ConnectX-4 25Gb Dual Port Ethernet Card DP/N: MRT0D
item 2 Dell Mellanox CX4121C ConnectX-4 25Gb Dual Port Ethernet Card DP/N: MRT0D
C $53.68
+C $59.85 shipping
Dell Mellanox ConnectX-4 Lx CX4121C Dual 25GbE SFP28 LP MCX4121C 0MRT0D MRT0D
item 3 Dell Mellanox ConnectX-4 Lx CX4121C Dual 25GbE SFP28 LP MCX4121C 0MRT0D MRT0D
C $125.70
Free shipping
Dell 020NJD Mellanox CX4121C ConnectX Dual Port 25GbE SFP PCIe Adapter (BN185)
item 4 Dell 020NJD Mellanox CX4121C ConnectX Dual Port 25GbE SFP PCIe Adapter (BN185)
C $209.51
+C $26.34 shipping

Ratings and Reviews

Learn more
4.8
6 product ratings
  • 5 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Most relevant reviews

  • by khalsa.ji
    Feb 13, 2021

    Solid performance, automatically recognized by the Linux Kernel Release 4.18.0-240.10.1.el8_3.x86_64.

    Well packaged. Clean. Popped one of them into my Gigabyte Aorus mobo running Linux Centos 8 Stream. Came right up. No drivers needed. Have not yet had a chance to verify the 2nd one which also goes into a Linux server: I am expecting that it will perform just as well at the one I do have in production.

    Verified purchase: YesCondition: Pre-owned

  • by shadowhwk
    Sep 27, 2024

    My mistake for not reading closely, but ...

    My mistake for not reading closely, but only has the low profile bracket. 3D printing a full height bracket FTW.

    Verified purchase: YesCondition: Pre-owned

  • by kurumilive
    Aug 30, 2025

    They work well. Fits perfectly in the MS...

    They work well. Fits perfectly in the MS-01. Does require a custom fan shroud if running in other than a server as these run hot.

    Verified purchase: YesCondition: Pre-owned

  • by bouncelabs
    Oct 03, 2024

    Great! connected at either 10gbe or 25gb...

    Great! connected at either 10gbe or 25gbe depending on the switch / cable.

    Verified purchase: YesCondition: Pre-owned

  • by mriqbal87
    May 31, 2021

    Great for simple home Nas solution.

    Great for simple home Nas solution.

    Verified purchase: YesCondition: Pre-owned

Best Selling in Network Cards

Save on Network Cards

Trending price is based on prices over last 90 days.

You may also like