Does this come with half-height, full-height or both brackets?

The ones I received came with both brackets.

Are the slots qsfp or sfp+?

They can support 10Gbps (sfp) and 25Gbps with SFP-128 cables that I use to connect server to Synology NAS (both with this Mellanox card). I don't believe that they support qsfp because I believe that would be 100Gbps (I believe you have to move up to the ConnectX-5 card for that).

Can this card be installed in a "generic" server or only in an OCP system?

They can be installed in "generic" server if it has required slots.

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Mellanox ConnectX-4 Lx EN Network Adapter (MCX4121A-XCAT)

Product ID: 311610531

Details

Brand
Mellanox
Colour
black
Compatible devices
Desktop
Data link protocol
Bluetooth
Hardware interface
PCIE x 8

⚡Low latency

💻Multi-host tech

📈High throughput

Description

🚀 Elevate Your Network Game!

MAXIMIZE YOUR ROI - Leverage multi-host technology to enhance your data center's return on investment.
COMPACT POWERHOUSE - Lightweight design (155g) with robust performance, perfect for modern data centers.
VIRTUALIZATION READY - Cutting-edge performance in virtualized overlay networks for optimal efficiency.
UNLEASH UNMATCHED SPEED - Experience industry-leading throughput and low latency for seamless web access and storage performance.
VERSATILE COMPATIBILITY - Smart interconnect for x86, Power, ARM, and GPU-based platforms ensures flexibility.

The Mellanox ConnectX-4 Lx EN Network Adapter (MCX4121A-XCAT) is a high-performance network solution designed for data centers, offering exceptional throughput and low latency. Its multi-host technology maximizes ROI while ensuring compatibility across various computing platforms, making it ideal for virtualized environments.

Specifications

ASIN	B019MRAM72
Best Sellers Rank	#169,986 in Computers ( See Top 100 in Computers ) #494 in Network Cards
Brand	Mellanox
Built-In Media	Mellanox network adapter
Color	black
Compatible Devices	Desktop
Data Link Protocol	Bluetooth
Data Transfer Rate	10240 Megabits Per Second
Global Trade Identification Number	07290107197878
Hardware Interface	PCIE x 8
Item Type Name	ConnectX-4 Lx EN Network Adapter
Item Weight	109 g
Manufacturer	INGB9 Music Vendor Code
Mfr Part Number	MCX4121A-XCAT
Model Number	MCX4121A-XCAT

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