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Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black

Model: CT2K64G56C46S5
SKU: 12481146
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About this product

Crucial DDR5 Memory has the blazing speed and massive bandwidth needed for the next generation of multi-core CPUs. This innovative technology empowers your system to multitask better, load, analyze, edit, and render faster, game with higher frame rates, uncover data insights faster, enhance productivity to save time and money, significantly reduce lag for heavy workloads and optimize power efficiency over the previous generation. Available in speeds up to 5,600MT/s and densities up to 64GB, Crucial DDR5 Memory can enable your computer to harness performance that was once only possible with extreme performance memory.

Memory Capacity (Total)

128GB

Features

  • Extreme performance right out-of-the-box

    Crucial DDR5 Memory can transfer data up to 1.75x faster and deliver up to 2x more bandwidth than DDR4, resulting in shorter load times, file transfers, downloads, lag time and improved refresh rates. Performance is enhanced not just during testing, but in real-world conditions.

  • No latency downsides with DDR5

    Crucial DDR5’s system latency, measured in nanoseconds, is only up to 3% longer than DDR4 during testing, meaning real-world latency performances are virtually the same. With Crucial DDR5 delivering up to 2x more bandwidth, DDR4 is still outperformed.

Specifications

  • Type of Memory (RAM)
    DDR5
    Form Factor
    Laptop
    Speed
    5600 megahertz
    Latency
    46-45-45
    CAS Latency
    46
    Lighting Type
    None
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Reviews

Rating 4.5 out of 5 stars with 12 reviews

5 star rating. 9 reviews4 star rating. 2 reviews1 star rating. 1 review
83% would recommend to a friend

Top Mentions

  • Performance (6)
  • Compatibility (3)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    100% Necessary for your College Kid

    It is absolutely fantastic that we now live in an age where laptops and portable technology can support this kind of hardware! And where I can realize that I am a noob and purchased 128GB of SODIMM that can only be used in a laptop and not my future desktop build and I could not split 64GB in two laptops because single channel is bad, so I made the most of it and have a 3 year old alienware that has so much RAM that to justify such a purchase I am going to go get a degree in engineering so I can go work for NASA so they can tell me how to run 30 VMs at the same time so I can replace 30 of their workers and get paid 3,000,000 dollars per year and make the money back 100,000 fold. So yeah... Future proof, these are pretty cool.

    This review is from Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black

    Posted by CJTechson

  • Rated 1 out of 5 stars

    SCAM do not buy

    I brought this directly sold from BestBuy and I received a fake kit of 128gb ram in sealed. BestBuy did not help me in store to return it or get a refund and they made me feel like i was trying to scam them when in reality it was me, their customer. Stay away from BestBuy at all cost!

    This review is from Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black

    Posted by Metriad

  • Rated 5 out of 5 stars

    Worked well

    Worked without issue in my MS-A2. Installed in the SO-DIMM slots and didn't need to do any other configuration.

    This review is from Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black

    Posted by Edward

  • Rated 5 out of 5 stars

    MS-A2 compatible

    Prior to the major price increase, i purchased 2 of these kits for the two Minisforum MS-A2 mini pc's i purchased for a homelab/Proxmox cluster. Works perfect, no complaints. Wish AI would stop ruining the pricing of memory... it doubled since i purchased these in Mid October.

    This review is from Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black

    Posted by BrianB

  • Rated 5 out of 5 stars

    Works Perfectly In 2025 Asus SCAR Laptop W/ 5090

    Bought this to upgrade my 2025 Asus SCAR laptop w/ a 5090 RTX in it. While Asus only stated RAM upgrades up to 64GB this 128GB kit works perfectly. Combined this with a 4TB Samsung NVME for the 2nd SSD slot.

    This review is from Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black

    Posted by Yukio

See all customer reviews

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Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black
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4.5(12)

Crucial DDR5 Memory has the blazing speed and massive bandwidth needed for the next generation of multi-core CPUs. This innovative technology empowers your system to multitask better, load, analyze, edit, and render faster, game with higher frame rates, uncover data insights faster, enhance productivity to save time and money, significantly reduce lag for heavy workloads and optimize power efficiency over the previous generation. Available in speeds up to 5,600MT/s and densities up to 64GB, Crucial DDR5 Memory can enable your computer to harness performance that was once only possible with extreme performance memory.

OWC - 64GB (2x32GB) Replacement for Crucial CT2K32G56C46S5 - DDR5 5600MHz PC5-44800 CL46 2Rx8 262-pin 1.1V Non-ECC SODIMM - Black Chips
OWC - 64GB (2x32GB) Replacement for Crucial CT2K32G56C46S5 - DDR5 5600MHz PC5-44800 CL46 2Rx8 262-pin 1.1V Non-ECC SODIMM - Black Chips
Not Yet Reviewed

Capacity: 64GB (2x32GB) --- Technology: DDR5 --- Speed: PC5-44800 5600MHz CL46 --- ECC Type: Non-ECC Unbuffered --- Form Factor: 262-Pin Non-ECC SODIMM --- Voltage: 1.1V --- Backward Compatibility: Also compatible with 4800MHz --- Replacement For: Crucial CT2K32G56C46S5 --- OWC DDR5 memory is Fully compliant with JEDEC specifications, ROHS compliant, providing a warranty safe upgrade. OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential and speed up overall responsiveness. Become a multitasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time. We test every OWC memory module at our in house lab so you can upgrade with the confidence that your memory is built to last. We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service. OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.

OWC - 64GB (2x32GB) DDR5 5600MHz 2Rx8 CL46 Non-ECC 262-pin SODIMM Memory RAM for Laptops, All-in-One Systems, NAS Systems - Black Chips
OWC - 64GB (2x32GB) DDR5 5600MHz 2Rx8 CL46 Non-ECC 262-pin SODIMM Memory RAM for Laptops, All-in-One Systems, NAS Systems - Black Chips
Not Yet Reviewed

Capacity: 64GB (2x32GB) --- Technology: DDR5 --- Speed: PC5-44800 5600MHz CL46 --- ECC Type: Non-ECC Unbuffered --- Form Factor: 262-Pin Non-ECC SODIMM --- Voltage: 1.1V --- Backward Compatibility: Also compatible with 4800MHz --- Replacement For: Crucial CT32G56C46S5; Dell AC774046, SNP0X1C3C/32G; HP 79U72AA; Kingston KVR56S46BD8-32; Lenovo 4X71M23189; Samsung M425R4GA3BB0-CWM, M425R4GA3PB0-CWM, M425R4GA4DB0-CWM --- OWC DDR5 memory is Fully compliant with JEDEC specifications, ROHS compliant, providing a warranty safe upgrade. OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential and speed up overall responsiveness. Become a multitasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time. We test every OWC memory module at our in house lab so you can upgrade with the confidence that your memory is built to last. We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service. OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.

OWC - 64GB (2x32GB) DDR5 5600MHz 2Rx8 CL46 ECC 262-pin SODIMM Memory RAM for Laptops, All-in-One Systems, and NAS Systems - Black Chips
OWC - 64GB (2x32GB) DDR5 5600MHz 2Rx8 CL46 ECC 262-pin SODIMM Memory RAM for Laptops, All-in-One Systems, and NAS Systems - Black Chips
Not Yet Reviewed

Capacity: 64GB (2x32GB) --- Technology: DDR5 --- Speed: PC5-44800 5600MHz CL46 --- ECC Type: ECC Unbuffered --- Form Factor: 262-Pin ECC SODIMM --- Voltage: 1.1V --- Backward Compatibility: Also compatible with 4800MHz --- Replacement For: HP 79U73AA; Kingston KSM56T46BD8KM-32HA; Samsung M426R4GA3DB0-CWM, M426R4GA3PB0-CWM --- OWC DDR5 memory is Fully compliant with JEDEC specifications, ROHS compliant, providing a warranty safe upgrade. OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential and speed up overall responsiveness. Become a multitasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time. We test every OWC memory module at our in house lab so you can upgrade with the confidence that your memory is built to last. We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service. OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.

Pros for Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black
Performance, CompatibilityThere were no pros for this product—There were no pros for this product—There were no pros for this product—

Specs

Questions & Answers

  • Is this memory buffered or unbuffered?

    This memory is unbuffered.

    This question and answer was generated by AI based on customer and product data.

  • How many modules are included in this kit?

    This kit includes two memory modules.

    This question and answer was generated by AI based on customer and product data.

  • What type of memory is this?

    This is a DDR5 type of memory.

    This question and answer was generated by AI based on customer and product data.

  • Does this memory have error correction?

    No, this memory does not have error correction; it is Non-ECC.

    This question and answer was generated by AI based on customer and product data.

  • How much voltage does the memory use?

    The memory uses 1.1 volts.

    This question and answer was generated by AI based on customer and product data.
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