Mellanox ConnectX-4 MCX4121A-ACAT 2-Ports SFP28 25Gbps PCI-E 3.0 Network Adapter

cloudtech-0
(27)
PrivateRegistered as a private seller
Consumer protection regulations resulting from EU consumer law are therefore not applicable. eBay buyer protection still applies to most purchases.
US $83.80
Approximately£63.42
or Best Offer
Condition:
Used
4 available
Breathe easy. Returns accepted.
Postage:
Free USPS Priority Mail®.
Located in: Pittsburgh, Pennsylvania, United States
Delivery:
Estimated between Sat, 6 Dec and Fri, 12 Dec to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the delivery service selected, the seller's delivery history and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Payments:
    Diners Club

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eBay item number:397036415511
Last updated on 22 Oct, 2025 11:31:34 BSTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been previously used. The item may have some signs of cosmetic wear, but is ...
Brand
Mellanox
Form Factor
Plug-in-Module
Type
Network Adapter Card
External Interfaces
Ethernet/ Network Cards
Number of Ports
2 Ports
Model
Mellanox Connectx-4
MPN
MCX4121A-ACAT
Internal Interfaces
SFP28
Maximum Data Rate
25 Gbps
UPC
Does Not Apply
Category

Item description from the seller

About this seller

cloudtech-0

100% positive Feedback70 items sold

Joined Jun 2023
Usually responds within 24 hours
Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.

Seller Feedback (8)

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Product ratings and reviews

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

  • 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

  • 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

  • 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

  • Worked without issues in my Unraid serve...

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

    Verified purchase: YesCondition: NewSold by: nhlfy411

  • very good

    It's a very good product

    Verified purchase: YesCondition: Pre-ownedSold by: nhlfy411