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NVIDIA ConnectX-3 Pro 10Gbps LAN Card

β˜…β˜…β˜…β˜…β˜… 4.5 rating Β· 34 reviews Β· 337+ sold
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Product Details

This is a Mellanox ConnectX-3 Pro EN 10GbE LAN card manufactured by NVIDIA, model number MCX312B-XCCT.
It is an HP OEM product with HP model number 546SFP+.
It features SFP+ dual ports and connects via PCIe 3.0 x8.

We have confirmed that it is recognized and can be used without installing additional drivers on Synology and QNAP NAS devices, as well as Windows 10/Windows 11 PCs.

Since it is equipped with SFP+ ports, you will need an SFP+ compatible optical module and fiber optic cable, or a DAC cable to use it.
Even without an SFP+ compatible switch, 10Gbps communication is possible by directly connecting SFP+ cards to each other.

A standard-size bracket is attached, and a low-profile bracket is also included.

Thank you.

Manufacturer: NVIDIA
Product Family: Mellanox ConnectX-3 Pro EN
Model Name: MCX312B-XCCT
Interface: PCI Express 3.0 x8
Network Technology: 10GBase-X
Ports: SFP+ Dual Port

mcx312b-xcct NVIDIA Mellanox 10 GbE Dual Port ConnectX-3 EN Pro SFP+ mcx312b mcx312

Category
Expansion Card
Brand
NVIDIA
Condition
Almost new
Shipping
Included in price (by seller)
From
Tokyo

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (34)

4.5
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Based on 326 reviews
5 stars
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4 stars
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M
User4373942
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2026-11-07

I’m satisfied with how smoothly everything went from ordering to delivery. The item itself is exactly what I needed.