Well, this memory work on my Asus b650 plus motherboard

Yes, this memory is compatible with AMD 500 Series and AMD 600 Series motherboards, which includes the Asus B650 Plus.

What is the speed and CAS latency of this DDR5 memory?

This DDR5 memory operates at a speed of 6400MT/s with a CAS latency of CL32.

What is the capacity and configuration of the Crucial Pro Overclocking DDR5 memory?

The Crucial Pro Overclocking DDR5 memory has a capacity of 32GB, configured as a dual channel kit with 2 x 16GB modules.

is this ram compatible with amd 7700x

Yes but will depend on your motherboard for some reason I can't figure out yet.

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Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400 (PC5 51200) Desktop Memory Model CP2K16G64C32U5B

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Capacity: 32GB (2 x 16GB)

32GB (2 x 16GB)
64GB (2 x 32GB)

Speed: DDR5 6400 (PC5 51200)

DDR5 6400 (PC5 51200)
DDR5 6000 (PC5 48000)

CAS Latency|Color: CL32White

CL36|Black
CL36|White
CL38|Black
CL38|White
CL40|Black
CL40|White
CL32Black
CL32White

DDR5 6400 (PC5 51200)
Timing 32-40-40-103
CAS Latency CL32
Voltage 1.35V

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Overview

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Model
Brand	Crucial
Series	Pro Overclocking
Model	CP2K16G64C32U5B
Part Number	CP2K16G64C32U5B

Details
Capacity	32GB (2 x 16GB)
Speed	DDR5 6400 (PC5 51200)
CAS Latency	CL32
Timing	32-40-40-103
Voltage	1.35V
ECC	No
Buffered/Registered	Unbuffered / Unregistered
Multi-channel Kit	Dual Channel Kit
BIOS/Performance Profile	Intel XMP 3.0 / AMD EXPO
Color	White
Heat Spreader	Yes
Features	Secure your tactical advantage with the low-latency performance of Crucial DDR5 Pro OC Gaming DRAM, available in speeds up to 6,400MT/s, with a CAS latency of 32. This high-bandwidth, low-latency UDIMM memory solution helps you dominate the competition in seamless AAA gaming, while streaming, chatting on Discord and uploading your latest gameplay reel. Fueled by Micron innovation, DDR5 Pro OC Gaming DRAM supports both Intel XMP 3.0 and AMD EXPO2 on the same module for the versatile compatibility that DIYers crave, while offering the responsiveness that elite performance users require. * Game Changing Speed: 32GB DDR5 overclocking desktop RAM kit (2x16GB) that operates at a speed up to 6400MHz at CL32—designed to boost gaming, multitasking, and overall system responsiveness * Low-Latency Performance: In fast-paced gameplay, every millisecond counts. Benefit from lower latency at CL32 for higher frame rates and smooth gameplay—perfect for memory-intensive AAA titles * Elite Compatibility: Enjoy stable overclocking with Intel XMP 3.0 and AMD EXPO. Compatible with Intel Core Ultra Series 2, Ryzen 9000 Series desktop CPUs, and newer * Striking Style, Elite Quality: Featuring a battle-ready heat spreader in Snow Fox White or Stealth Matte Black camo, this DDR5 memory delivers bold, tactical aesthetics for your build * Overclocking: Extended timings of 32-40-40-103 ensure stable overclocking and reduced latency—powered by Micron’s advanced memory technology for next-gen computing
Recommend Use	AMD & Intel Compatible / AMD 500 Series / AMD 600 Series / AMD B550 / AMD B650 / AMD B850 / AMD Ryzen Compatible / AMD X570 / High Performance or Gaming Memory / Intel 600 Series / Intel 700 Series / Intel B560 / Intel B660 / Intel B670 / Intel B760 / Intel Compatible / Intel Z590 / Intel Z690 / Intel Z790 / Intel Z890
LED Color	None

Additional Information
First Listed on Newegg	October 21, 2025

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Limited Warranty period (labor): Lifetime
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Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400 (PC5 51200) Desktop Memory Model CP2K16G64C32U5B

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Manufacturer Contact Info

Item#: N82E16820156451

Best Sellers

Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400 (PC5 51200) Desktop Memory Model CP2K16G64C32U5B

Learn more about the Crucial CP2K16G64C32U5B

Customer Reviews of the Crucial CP2K16G64C32U5B

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info