Search  for anything...

Crucial 16GB DDR5 RAM, 4800MHz CL40 Laptop Memory, SODIMM 262-Pin Module, Compatible with 12th Gen Intel Core - CT16G48C40S5

  • Based on 2,350 reviews
Condition: New
Checking for the best price...
$299.00 Why this price?

Buy Now, Pay Later


As low as $49.83 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 3 left in stock, order soon!
Fulfilled by MemoryMasters

Arrives Tuesday, Oct 27
Order within 17 hours and 9 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Style: 4800MHz


Size: 16GB


Features

  • Boosts System Performance: 16GB DDR5 RAM laptop memory that operates at 4800MHz to improve multitasking and system responsiveness for smoother performance
  • Accelerated gaming performance: Every millisecond gained in fast-paced gameplay countspower through heavy workloads and benefit from versatile downclocking and higher frame rates
  • Optimized DDR5 compatibility: Best for 12th Gen Intel Core and AMD Ryzen 7000 Series processors Intel XMP 3.0 and AMD EXPO also supported on the same RAM module
  • Trusted Micron Quality: Backed by 42 years of memory expertise, this DDR5 RAM is rigorously tested at both component and module levels, ensuring top performance and reliability
  • ECC type = non-ECC, form factor = SODIMM, pin count = 262-pin, PC speed = PC5-38400, voltage = 1.1V, rank and configuration = 1Rx8

Description

Upgrade your laptop memory with the Crucial 16GB DDR5 RAM (CT16G48C40S5), designed to deliver high-speed performance for gamers, content creators, and professionals alike. With speeds up to 4800MHz, and a CAS Latency of 40, this DDR5 memory ensures faster data transfers, smoother multitasking, and improved performance in demanding applications like 4K video editing, gaming, and data processing.Compatible with 12th Gen Intel Core processors and AMD Ryzen 7000 Series CPUs, this memory kit provides the performance needed for modern laptops. With 16GB of capacity, you can handle memory-intensive tasks and run multiple applications at once without slowdowns. This DDR5 RAM is also more energy-efficient than previous generations, allowing for longer-lasting system performance.This Crucial DDR5 16GB module supports Intel XMP 3.0 and AMD EXPO, enabling easy overclocking for enthusiasts looking to game at higher frame rates and/or maximize their system's potential. Installation is easy—just plug in the memory, and your desktop will be ready to handle the most demanding workloads..

Brand: Crucial


Computer Memory Size: 16 GB


RAM Memory Technology: DDR5


Memory Speed: 4800 MHz


Compatible Devices: Laptop


RAM Memory Technology: DDR5


Memory Speed: 4800 MHz


Compatible Devices: Laptop


Additional Features: Lightweight


Voltage: 1.1


Column Address Strobe Latency: 40


Form Factor: SO-DIMM


Data Transfer Rate: 4800 MHz


Number of Pins: 262


Memory Form Factor: SODIMM


Memory Generation: DDR5


RAM Size: 16 GB


Brand: Crucial


Model Name: CT16G56C46S5


UPC: 649528906526


Number of Items: 1


Manufacturer: Crucial


Unit Count: 1 Count


Global Trade Identification Number: 26


Item Weight: 8.21 g


Item Type Name: DDR5 Laptop Memory


Model Number: CT16G48C40S5


Mfr Part Number: CT16G48C40S5


Warranty Description: Limited Lifetime Warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Igual al publicado
Style: 4800MHz Size: 16GB
Excelente producto
Reviewed in the United States on August 16, 2026 by Eric Joan Angulo Victoria

  • Perfect for improving ram on a laptop.
Style: 4800MHz Size: 16GB
Fast and easy installation for ram. It works right out the box. The upgraded speed and total ram is perfect for my rog laptop now that its 32gb it no longer lags for certain games and it improved overall speeds for it now being in dual channel. The price or availability is hard to find but at $70 its a great deal for current times but to be honest kind of expensive. ... show more
Reviewed in the United States on November 28, 2025 by Jhon

  • Compatible with Dell G15 5520
Style: 4800MHz Size: 16GB
Crucial and Amazon stand behind the products, but buying quality RAM to put in a Dell will get you a support run around. Be confident in your ability to troubleshoot and resolve issues before saving the money, because Dell will not help you if there are any questions related to 3rd party RAM, even when it's top quality RAM and guaranteed compatible like Crucial is. I installed the Crucial RAM in my Dell G15 5520, and it APPEARED to be incapable of POST (power on self test) after the install, but it turns out, this laptop needs time after RAM installation to return to normal operation. Apparently, BEFORE THE DELL LOGO APPEARS, the system is doing some sort of internal testing or verification of the new RAM that requires you to be patient and let it finish. Amazon handled a replacement product when I thought the RAM was defective with no trouble whatsoever, and Crucial was willing to replace the RAM again later when I had taken too long to return to Amazon (30 days is reasonable, but there were delays in trying to install in the laptop again). DELL Service and Support gets 1 Star when handling 3rd party RAM, and thank goodness I happened upon the solution. I got fed up with the apparent lack of POST that I just angrily walked away from the computer, and when I came back, it was at a BIOS screen waiting for a confirmation key press due to hardware change. So to reiterate, if you put this into a DELL Laptop, be patient, and give it time to make sure it recognizes it. Don't be impatient like me and think it's failing to POST. ... show more
Reviewed in the United States on November 4, 2022 by Jeremy D Young

  • WORKED EXACTLY AS ADVERTISED!
Style: 4800MHz Size: 16GB
EXCELLENT PRODUCT! Easy to install and worked like a champ!
Reviewed in the United States on May 18, 2026 by Amazon Customer

  • La mejor inversión
Style: 4800MHz Size: 16GB
La mejor compra que hice
Reviewed in the United States on July 23, 2026 by Ramiro Sanchez Robles

  • The price is now absolutely ridiculous
Style: 4800MHz Size: 16GB
Bought this RAM for my U Green DXP-2800 NAS on August 26, 2025, for $37.78. Easy to install, nice performance upgrade, the Crucial 16GB DDR5 RAM, 4800MHz CL40 is rock solid. I just came back to buy more for a second NAS. The price is now absolutely ridiculous. I'll make do with what I have until the price comes back down. ... show more
Reviewed in the United States on February 26, 2026 by Rob C

  • Works great on my ROG zephyrus G14 GA402
Style: 4800MHz Size: 16GB
I recently reached the maximum capabilities of the 16GB of RAM that initially came with my Zephyrus G14 (2022) model. After researching my options, getting a 16GB stick to replace the existing 8GB stick in the laptop already would be the best option. Although I had considered a 32GB stick, reviews on YouTube proved that it might be slower than getting a 16GB RAM stick. The speed of 4800 MHz matches the current RAM in the laptop, and getting anything faster would not work because the laptop would still run at the speed of the slower RAM, which would be the RAM already soldered into the laptop (4800 MHz). This stick seemed to be the most cost-effective and overall option that met the needs of this laptop well. Installing the new RAM was not difficult at all and I am happy to report that it has worked very well for my workflow. ... show more
Reviewed in the United States on August 9, 2024 by Dean S

  • RAM
Style: 4800MHz Size: 16GB
Barry called to see if we were happy with our purchase. It arrived on time and we are satisfied.
Reviewed in the United States on March 3, 2026 by Heather Corbin

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...