Does this work on Dell XPS 9860?

As far as I know, there is no 9860 is NOT a valid model number. If you meant XPS 8960, then the answer is yes, it will work. I installed this in my XPS 8960 almost 1 year ago and it's been working great. Hope this helps.

? are these compatable with 14 gen cpu's that are ecc supported

They should be but the bigger question you should be asking yourself is: Are these compatible with your Motherboard. To find out go to the crucial website and look up your motherboard. Crucial will provide you with a list of RAM modules that are compatible with your Motherboard.

? are these compatable with 14 gen cpu's that are ecc supported

Go to [ ( crucial dot com )/store/advisor ] to check your motherboard and ram compatibility.

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Main image of Crucial Pro 64GB (2 x 32GB) DDR5 5600 (PC5 44800) XMP 3.0 & AMD EXPO Ready Desktop Memory Model CP2K32G56C46U5

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Crucial Pro 64GB (2 x 32GB) DDR5 5600 (PC5 44800) XMP 3.0 & AMD EXPO Ready Desktop Memory Model CP2K32G56C46U5

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Capacity: 64GB (2 x 32GB)

32GB (2 x 16GB)
48GB (2 x 24GB)
64GB (2 x 32GB)
96GB (2 x 48GB)
128GB (2 x 64GB)

Speed: DDR5 5600 (PC5 44800)

DDR5 6000 (PC5 48000)
DDR5 5600 (PC5 44800)

CAS Latency: CL46

CL46
CL48

Downclock capable for systems that only support 5200MT/s or 4800MT/s
Compatible with 12th & 13th Gen Intel Core and AMD Ryzen 7000 Series desktop CPUs
Intel XMP 3.0 and AMD EXPO supported for easy performance recovery
Game at higher frame rates, multitask better, improve productivity
ECC type = non-ECC, form factor = UDIMM, pin count = 288-pins, PC speed = PC5-44800, voltage = 1.1V, rank and configuration = 1Rx8

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Overview

Specs

Reviews (77)

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Model
Brand	Crucial
Series	Pro
Model	CP2K32G56C46U5
Part Number	CP2K32G56C46U5

Details
Capacity	64GB (2 x 32GB)
Speed	DDR5 5600 (PC5 44800)
CAS Latency	CL46
Voltage	1.10V
ECC	No
Buffered/Registered	Unbuffered / Unregistered
Multi-channel Kit	Dual Channel Kit
BIOS/Performance Profile	Intel XMP 3.0 / AMD EXPO
Color	Black
Heat Spreader	Yes
Features	CP2K32G56C46U5 is the Crucial DDR5 Pro 64GB kit consisting of two 32GB desktop modules that operate at the speed of 5600MHz and has a CAS Latency of 46. It is an UDIMM and conforms to the industry standard DDR5 UDIMM layout of 288 pins. It is compatible with systems that can take DDR5-5600 UDIMM memory.
Recommend Use	Compatible with 12th Gen Intel® Core™ or AMD RyzenTM 7000 Series Desktop CPUs and above
LED Color	None

Additional Information
First Listed on Newegg	August 16, 2023

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Warranty

Limited Warranty period (parts): Lifetime
Limited Warranty period (labor): Lifetime
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Return for refund within: 30 days

Return for replacement within: 30 days

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Crucial Pro 64GB (2 x 32GB) DDR5 5600 (PC5 44800) XMP 3.0 & AMD EXPO Ready Desktop Memory Model CP2K32G56C46U5

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Customer Reviews of the Crucial CP2K32G56C46U5

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Warranty, Returns, And Additional Information

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Manufacturer Contact Info

Item#: N82E16820156380

Best Sellers

Crucial Pro 64GB (2 x 32GB) DDR5 5600 (PC5 44800) XMP 3.0 & AMD EXPO Ready Desktop Memory Model CP2K32G56C46U5

Learn more about the Crucial CP2K32G56C46U5

Customer Reviews of the Crucial CP2K32G56C46U5

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info