Can a unifi SFP cable be connected to this card directly?

If you mean the copper SFP28 DAC cable, then yes. I am currently using that. For a fiber cable, you need a transceiver.

I have a qnap 873e w/qxg-10g1t add-in. will the mcx4121a-acat 25gigabit ethernet card support this using cat7? what speed could i expect?

This NIC uses SFP28 adaptor. If you use SFP+ transceiver with 10G base-T, you will get 10G speed

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ConnectX-4 Lx EN - Network adapter - PCIe 3.0 x8 - 25 Gigabit Ethernet x 2

Product ID: 167703134

Details

Brand
Mellanox
Colour
Green
Compatible Operating System Family
Linux Windows
Compatible devices
Desktop
Data link protocol
Ethernet
Data transfer rate
25600 Megabits

⚡25Gbps dual ports

🔌PCIe 3.0 x8 interface

🖥️Optimized for virtualized servers

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Description

🚀 Connect faster, scale smarter, and lead the network revolution!

BLAZING 25 GIGABIT ETHERNET - Experience ultra-fast data transfer speeds that keep your network ahead of the curve.
INNOVATIVE MULTI HOST TECHNOLOGY - Revolutionize your rack design to slash CAPEX and OPEX without sacrificing speed.
VIRTUALIZATION READY PERFORMANCE - Host more VMs per server with reduced CPU load and enhanced throughput.
SEAMLESS PC IE 3 0 X 8 CONNECTIVITY - Maximize bandwidth with a high-speed interface designed for demanding workloads.
OCP 2 0 CERTIFIED FOR FUTURE PROOFING - Stay on the cutting edge with Open Compute Project compliance ensuring top-tier network efficiency.

The ConnectX-4 Lx EN is a high-performance network adapter featuring dual 25 Gigabit Ethernet ports and PCIe 3.0 x8 interface. Engineered for virtualized server environments, it boosts throughput and reduces CPU load, enabling more virtual machines per server. With Open Compute Project 2.0 compliance and innovative multi-host technology, it delivers superior network efficiency and cost savings for modern data centers.

Specifications

ASIN	B011HVAZ78
Best Sellers Rank	249,953 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,073 in Network Cards
Box Contents	Mellanox network adapter
Brand Name	Mellanox
Color	Green
Compatible Devices	Desktop
Compatible Operating System Family	Linux, Windows
Data Link Protocol	Ethernet, Gigabit Ethernet
Data Transfer Rate	25600 Megabits Per Second
Global Trade Identification Number	07290107197861
Hardware Interface	PCIE x 8
Item Type Name	ConnectX-4 Lx EN Network Adapter
Item Weight	0.18 Pounds
Manufacturer	INGB9 Music Vendor Code
Manufacturer Part Number	MCX4121A-ACAT
Model Number	MCX4121A-ACAT
Unit Count	2.0 count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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COP 1006708

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In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

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