CX4121A MCX4121A-ACAT Mellanox ConnectX-4 Lx 25GbE SFP28 PCIe Ethernet Adapter

Winners Hardware
(1787)
Registered 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 $58.90
(US $62.00 / Unit)
or Best Offer
Was US $62.00 (5% off)What does this price mean?
Recent sales price provided by the seller
Condition:
Tweedehands
100% Fully tested before shipment, good working condition. Looks like new.
More than 10 available715 sold
This one's trending. 715 have already sold.
Breathe easy. Returns accepted.
Shipping:
US $5,00 eBay SpeedPAK Standard.
Located in: Shenzhen, China
This item includes applicable import fees—you won’t pay anything extra after checkout.
Delivery:
Estimated between Mon, Nov 17 and Fri, Nov 21 to 94104
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Payments:
     Diners Club

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Seller assumes all responsibility for this listing.
eBay item number:115511559619
Last updated on 01 nov 2025 09:47:21 CETView all revisionsView all revisions

Item specifics

Condition
Tweedehands
Een object dat eerder al gebruikt werd. Het object kan tekens van slijtage vertonen maar werkt nog naar behoren. Dit object kan een showroommodel zijn of een object dat na een tijdje werd teruggebracht naar de verkoper. Bekijk de aanbieding van de verkoper voor de volledige details en een beschrijving van de gebreken. See all condition definitionsopens in a new window or tab
Seller Notes
“100% Fully tested before shipment, good working condition. Looks like new.”
Country of Origin
China
Compatible Brand
For Mellanox
External Interfaces
Ethernet/ Network Cards
Custom Bundle
No
MPN
MCX4121A-ACAT
Maximum Data Rate
25Gbps
Brand
Mellanox
Form Factor
CompactFlash
Type
Network Interface Controller
Number of Ports
2 Ports
Manufacturer Warranty
1 Year
Model
CX4121A
Compatible Port
PCI Express x8
Internal Interfaces
SFP

Item description from the seller

About this seller

Winners Hardware

99.2% positive feedback39K items sold

Joined Nov 2007
Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.
Winners was founded in 2006. It is your excellant source for server, storage, networking and communication products, such as sfp,sfp+,sfp28,qsfp,qsfp28, network card, HBA,expansion card, raid ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (1,950)

All ratingsselected
Positive
Neutral
Negative
  • *****- Feedback left by buyer.
    Past year
    Verified purchase
    Item as described. It's labelled correctly and it reports correctly in my server. It works correctly with MFT. I was able to update it to the latest Mellanox firmware without issue. The LEDs work. The thermal paste was old, but that was expected; repasting was easy-enough. Item arrived well-packaged, and included both brackets. I suspect this is NOS rather than used, as it looks brand-new.
  • *****- Feedback left by buyer.
    More than a year ago
    Verified purchase
    Item was in really good state might as well have been new. Surprised me to see the thermal paste was still very liquid, maybe a repaste or the cpu just doesn't get too hot. Tested and works fine, at least for 10G SFP+. No complaints here
    Reply from: nhlfy411- Feedback replied by seller nhlfy411.- Feedback replied by seller nhlfy411.
    Hi, friend, We truly gratitude for choosing our store for your recent purchase and positive feedback. We are thrilled to hear that you are satisfied with your products. We strive to provide the highest quality products and the best possible service to our valued customers like yourself. Your satisfaction is our top priority. Looking forward to the opportunity to serve you again soon and to building a lasting partnership.
  • *****- Feedback left by buyer.
    Past year
    Verified purchase
    Everything works like intended, no problems under Proxmox 8 and with Ubiquiti 10/25Gbps DAC connected to Mikrotik switch. NIC was packaged in plastic "box" with low-profile adapter in separate compartment and was in superb condition.
    Reply from: nhlfy411- Feedback replied by seller nhlfy411.- Feedback replied by seller nhlfy411.
    Hi, friend, We truly gratitude for choosing our store for your recent purchase and positive feedback. We are thrilled to hear that you are satisfied with your products. We strive to provide the highest quality products and the best possible service to our valued customers like yourself. Your satisfaction is our top priority. Looking forward to the opportunity to serve you again soon and to building a lasting partnership.
See all feedback
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