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Mellanox ConnectX-4 Lx EN 25GbE (MCX4121A-ACAT) Dual-Port SFP28 Network Card

roberle_161
(896)
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US $70.00
ApproximatelyAU $108.12
Condition:
Opened – never used
Breathe easy. Returns accepted.
People are checking this out. 2 have added this to their Watchlist.
Collection:
Postage:
US $7.10 (approx. AU $10.97) delivery in 2-4 days
Get it between Wed, 6 Aug and Fri, 8 Aug to 94104.
Located in: Hayward, California, United States
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Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Payments:
     Diners Club

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eBay item number:187410330941
Last updated on 14 Jul, 2025 05:27:32 AESTView all revisionsView all revisions

Item specifics

Condition
Opened – never used: An item in excellent, new condition with no wear. The item may be missing the ...
Compatible Brand
For GIGABYTE, Universal, Mellanox
External Interfaces
RJ-45, Ethernet/ Network Cards, Ethernet (RJ-45), PC Card (PCMCIA) Type I
MPN
MCX4121A-ACAT
Maximum Data Rate
50G
Compatible Product Line
Universal
Brand
Mellanox
Form Factor
Network Adapter
Type
Network Adapter
Unit Type
Unit
Number of Ports
2 Ports
Model
Mellanox ConnectX-4
Unit Quantity
1
Country/Region of Manufacture
China
Compatible Port
PCI Express, PCI Express x8
Internal Interfaces
SFP, SFP+, SFP28
UPC
100028806735

Item description from the seller

About this seller

roberle_161

100% positive Feedback•965 items sold

Joined Dec 2015
Seller's other itemsContact

Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable postage costs
4.9
Postage speed
5.0
Communication
5.0

Seller feedback (406)

All ratings
Positive
Neutral
Negative
  • 2***a- Feedback left by buyer.
    Past 6 months
    Verified purchase
    SSDs and adapter were exactly as described and packed well in multiple layers of padding and boxes. Thank you to the seller for making a thorough and detailed listing
    4 WD IX SN530 2TB M.2 With 2.5 U.2 NVMe ADAPTER 8TB GEN 3X4 Viking Enterprise (#187143807947)
  • n***k (12)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Shipping was quick, packaging was great and kept my items safe, and item was perfect and as described. Great seller and very happy with my purchase.
    Vintage Eberhard Faber Microtomic 600 6H Box Of 12 Pencils USA (#186055288914)
  • e***e (483)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Fast shipping with great packaging. Just as described.
    Vintage Dixon El Dorado 201 Medium Indelible Box Of 12 Pencils USA (#186336934172)
See all feedback

Product ratings and reviews

Learn more
5.0
7 product ratings
  • 7 users rated this 5 out of 5 stars
  • 0 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

Would recommend

Good value

Good quality

Most relevant reviews

See all 7 reviews
  • by hi-networks
    12 Nov, 2024

    It's working on my QNAP TS-464.

    I am using it with my QNAP TS-464. It works perfectly. I am getting transfer speeds of close to 10Gbps, at less than half the price of genuine QNAP products.

    Verified purchase: YesCondition: NewSold by: nhlfy411

  • by gritz1975
    31 Aug, 2024

    Powerful, yet not expensive.

    I bought 2, for Proxmox and Truenas. In a direct connection between the two I managed to get around 2GB/s transfer rates. Depending on your hardware and tuning of course.

    Verified purchase: YesCondition: Pre-ownedSold by: hkebl-002

  • by d6zilcv5shy@deleted
    16 Mar, 2019

    good condition & performance

    1.very good condition, like a new card. 2.good performance, up to 25Gb/s.

    Verified purchase: YesCondition: Pre-ownedSold by: central_valley_computer_parts_inc

  • by olehenrikj
    02 Aug, 2025

    Worked without issues in my Unraid serve...

    Worked without issues in my Unraid server, using 10GbE.

    Verified purchase: YesCondition: NewSold by: nhlfy411

  • by awake666
    22 Oct, 2024

    very good

    It's a very good product

    Verified purchase: YesCondition: Pre-ownedSold by: nhlfy411

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