|Listed in category:
Have one to sell?

2PC Mellanox CX311A MCX311A-XCAT ConnectX-3 EN 10G Ethernet 10GbE SFP+ PCIe NIC

Winners Hardware
(1745)
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 $47.50
Approximately£35.42
(US $50.00 / Unit)
or Best Offer
Was US $50.00 What does this price mean?
Recent sales price provided by the seller
Save US $2.50 (5% OFF)
Condition:
Opened – never used
100% TESTED BEFORE SHIPMENT, GOOD WORKING CONDITION.
Offer ends in: 2d 13h
More than 10 available2 sold
Breathe easy. Returns accepted.
Popular item. 2 have already sold.
Postage:
US $5.00 (approx £3.73) eBay SpeedPAK Standard.
Located in: Shenzhen, China
This item includes applicable import fees – you won’t pay anything extra after checkout.
Delivery:
Estimated between Fri, 5 Sep and Thu, 11 Sep to 94104
Estimated delivery dates - opens in a new window or tab reflect seller's dispatch time, origin postcode, destination postcode and time of order receipt, and will depend on the delivery service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods, and are an estimate only.
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

Shop with confidence

eBay Money Back Guarantee
Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab
Seller assumes all responsibility for this listing.
eBay item number:125812378468
Last updated on 20 Aug, 2025 09:41:21 BSTView 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 original packaging or protective wrapping, or may be in the original packaging but not sealed. The item may include original accessories. The item may be a factory second (i.e. it has a small flaw that does not affect the operation of the item such as a scratch or dent). See the seller's listing for full details and description. See all condition definitionsopens in a new window or tab
Seller notes
“100% TESTED BEFORE SHIPMENT, GOOD WORKING CONDITION.”
External Interfaces
Cable, SFP, PCI, Network card
Custom Bundle
No
MPN
CX311A, MCX311A-XCAT
Maximum Data Rate
10 Gbps
Brand
Mellanox
Form Factor
CompactFlash
Type
Network Interface Controller
Number of Ports
1 Port
Manufacturer Warranty
1 Year
Model
Mellanox MCX311A-XCAT CX311A ConnectX-3 EN
Country/Region of Manufacture
China
Compatible Port
PCI Express, PCI Express x16, PCI Express x4, PCI Express x8
Internal Interfaces
SFP

Item description from the seller

About this seller

Winners Hardware

99.3% positive Feedback38K 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 ...
See more

Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable postage cost
5.0
Delivery time
5.0
Communication
5.0

Seller Feedback (1,897)

All ratings
Positive
Neutral
Negative
    • *****- Feedback left by buyer.
      More than a year ago
      Verified purchase
      great item, good conditions will buy from again
      Reply from: nhlfy411- Feedback replied to by seller nhlfy411.- Feedback replied to by seller nhlfy411.
      Hi sir, thanks for your precious positive feedback, it’s really meaningful to us.Should you have any networking and storage related products demand, please feel free to contact us or send inquiry! Wish to have your continuous supports! Hoping to have long term cooperation with you in future, we promise you’ll get the most competitive price and qualified products. Looking forward to our next cooperation!
    See all Feedback

    Product ratings and reviews

    4.5
    8 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
    • 1 users rated this 1 out of 5 stars

    Would recommend

    Good value

    Good quality

    Most relevant reviews

    • Great card, doesn't like e-cores on 12th-13th Gen Intel CPU based systems...

      Great value for a ConnectX-3 PCIex 3.0 x4 single port card. Windows 10/11 have a driver that will get you going, but i highly recommend you get the last provided one from nVidia. There is also an issue, on 12th and 13th gen Intel CPUs where you will have to disable e-cores for the system to boot under Windows. The last drivers nVidia provided do not handle e-cores at all and will cause the system to crash reliably. This card works with all of the 10gig SR optics and DAC cables i have. I just probably should have gone with a ConnectX-4 or 5 card, as they're not much more than these are. ConnectX-5 cards are the oldest nVidia still supports with updated drivers. All older cards are left to the mercy of the last provided drivers.

      Verified purchase: YesCondition: Pre-ownedSold by: pcsworld0812

    • Cheap entry into 10Gbe that works

      Installed it into my TrueNAS Core server running X470D4U ASRock Rack motherboard and it was detected just fine after changing a BIOS setting .. I have it connected via a 10Gbe copper DAC SFP+ cable into a cheap unmanaged switch that has 4 x 2.5GB ports + 2 x 10GB SFP+ ports. I can't test actual throughput though as my PC's are only 2.5GB

      Verified purchase: YesCondition: NewSold by: nhlfy411

    • It just works!

      One of the best ways to add sfp+ to your Windows or Linux computer. Windows and Linux will load the driver automatically so you don't need to worry about finding it online. You can also upgrade the firmware on the card but I haven't noticed a difference so I probably wouldn't bother (unless you're having issues).

      Verified purchase: YesCondition: Pre-ownedSold by: pcsworld0812

    • Works great. Had older firmware, but eas...

      Works great. Had older firmware, but easy to reflash.

      Verified purchase: YesCondition: Pre-ownedSold by: jb-electronic

    • great product, stable and reliable.

      good product, stable and smooth.

      Verified purchase: YesCondition: Pre-ownedSold by: xuanwen-2011

    This is a private listing and your identity will not be disclosed to anyone except the seller.