Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black
Memory Capacity (Total)
128GBSpecifications
- Type of Memory (RAM)DDR5Form FactorLaptopSpeed5600 megahertzLatency46-45-45CAS Latency46Lighting TypeNone
- Key Specs
- Type of Memory (RAM): DDR5
- Form Factor: Laptop (The type of computer the memory is configured to fit in.)
- Speed: 5600 megahertz
- Latency: 46-45-45 (Refers to the amount of time between the moment a memory request is initiated and the moment the request is retrieved by a processor, commonly written as a series of 4 numbers, or timings. Each timing measures the performance of the module according to a specific parameter. Generally, the lower the numbers, the faster the RAM can respond to requests.)
- CAS Latency: 46 (Column Address Strobe (CAS) Latency refers to the number of clock cycles (for synchronous DRAM) or nanoseconds (for asynchronous DRAM) between the moment an instruction or command is initiated and the moment the data result is available. Generally, the lower the numbers, the better.)
- Lighting Type: None
- Performance Profile(s): Intel XMP 3.0, AMD EXPO
- Memory Capacity (per Module): 64 gigabytes (Refers to the maximum amount of data that can be stored on the memory module.)
- Memory Capacity (Total): 128 gigabytes (Refers to the maximum total amount of data that can be stored on all included memory modules.)
- General
- Brand: Crucial
- Model Number: CT2K64G56C46S5
- Product Name: Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black
- Color: Black
- Memory Capacity (per Module): 64 gigabytes (Refers to the maximum amount of data that can be stored on the memory module.)
- Number Of Modules: 2
- Memory Capacity (Total): 128 gigabytes (Refers to the maximum total amount of data that can be stored on all included memory modules.)
- Compatibility
- Type of Memory (RAM): DDR5
- Pin Configuration: 262
- Memory Format: SODIMM (Memory module size that determines what size device the memory stick will fit.)
- Form Factor: Laptop (The type of computer the memory is configured to fit in.)
- Minimum System Requirements: Systems that can take DDR5-5600 SODIMM memory
- Operating System Compatibility: Windows, Linux
- Speed
- Memory Speed Rating: PC5-44800, PC5-44800 (The RAM's bandwidth rating. The numbers refer to generation and transfer speed and are typically separated with a hyphen. For example, PC3-12800 would indicate that the module is 3rd generation and has a theoretical bandwidth of 12,800 megabytes per second (MBs). The higher the second number, the faster the speed.)
- Speed: 5600 megahertz
- Latency: 46-45-45 (Refers to the amount of time between the moment a memory request is initiated and the moment the request is retrieved by a processor, commonly written as a series of 4 numbers, or timings. Each timing measures the performance of the module according to a specific parameter. Generally, the lower the numbers, the faster the RAM can respond to requests.)
- CAS Latency: 46 (Column Address Strobe (CAS) Latency refers to the number of clock cycles (for synchronous DRAM) or nanoseconds (for asynchronous DRAM) between the moment an instruction or command is initiated and the moment the data result is available. Generally, the lower the numbers, the better.)
- Features
- Buffered or Registered: Unbuffered (Registered (buffered) memory modules are classified by the addition of a register between the memory controller and DRAM modules. When compared to conventional unbuffered (unregistered) memory, this type provides more stability with less electrical load on the controller, making it a common choice for use in robust applications, such as servers.)
- Data Integrity Check: Non-ECC (Error-correcting code (ECC) memory helps to maintain data integrity within a computer system, protecting it from potential crashes as well as losses or changes to data due to undetected errors. Systems that use ECC have an additional chip on the RAM that acts as the error check.)
- Memory Channels: Single (Multi-channel memory increases the rate of data transfer between the DRAM memory and memory controller by adding more channels of communication. The more channels, the more memory bandwidth.)
- Lighting Type: None
- Fan Included: false
- Performance Profile(s): Intel XMP 3.0, AMD EXPO
- Power
- Voltage: 1.1 volts (Amount of power needed to support an electrical current.)
- Warranty
- Warranty - Parts: None
- Warranty - Labor: None
- Other
- UPC: 649528944214
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.
- 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.
- 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.
Disclaimers
- Only with a DDR5-enabled CPU and motherboard. DDR5 desktop memory is not compatible with DDR4 motherboards.
- Under memory-intensive workloads, DDR5 can deliver up to 2x the bandwidth, per an internal simulation of dual ranked x8 modules in client platforms.
- DDR5 4,800MT/s speeds are comparable to extreme-performance DDR4 memory speeds and 1.5x faster than maximum standard DDR4 speeds of 3200MT/s.
- 12GB, 24GB and 48GB densities are only available in SODIMM form factors.
- Since 12th Gen Intel® CoreTM processors are compatible with either DDR4 or DDR5 memory, adopting DDR5 will yield superior system performance.
- Crucial DDR5 desktop memory modules (UDIMM) can reach rated speeds with Intel XMP 3.0 or AMD EXPOTM turned on in the UEFI/BIOS settings. Applicable for all Crucial DDR5 desktop memory (UDIMM) modules except Crucial DDR5-4800 desktop memory, which supports only Intel® XMP 3.0. Based on published competitor specs for DDR5 memory as of October 2022.
- Altering clock frequency or voltage beyond JEDEC specifications may result in damage to computer components. Warranty voided if Crucial DRAM modules are set to overclock beyond JEDEC specifications, rated speeds, and timings. Micron disclaims any and all liability for such damage.
- DDR5 data rate of 4,800MT/s transfers 1.5x more data than the maximum standard DDR4 data rate of 3,200MT/s.
- Densities at launch and those planned are defined by JEDEC for the life of the DDR5 generation of memory.
- DDR5 modules (DIMMs) introduce voltage regulation on the module through a power management integrated circuit (PMIC), which enables better power regulation and reduces the scope of DRAM power delivery network (PDN) management on the motherboard for increased efficiency.
- On-die ECC (ODECC) is a feature of the DDR5 component specification and should not be confused with the module-level ECC features on server and workstation RDIMMs, LRDIMMs, ECC UDIMMs and ECC. Crucial DDR5 Memory includes ODECC but does not include the additional components necessary for system level ECC.
- Compared to published DDR4-3200 speeds.
- Limited lifetime warranty valid everywhere except Germany and France, where warranty is valid for ten years from the date of purchase.
- Crucial DDR5 Memory is standard JEDEC memory. Memory speed is not controlled exclusively by the module itself but also by the memory controller in the CPU and the BIOS/firmware on the motherboard.
- XMP or EXPO support is provided on desktop memory (UDIMM) modules so customers can easily recover memory performance up to JEDEC speeds if experiencing a system-level downclocking of their memory. Performance recovery is not guaranteed on all DDR5 systems and is highly dependent on the CPU tier, motherboard tier, and BIOS stability.
- DDR5 launch speeds of 4,800MT/s delivers 1.87x the bandwidth of the maximum standard DDR4 speeds of 3,200MT/s. Despite, true latency for DDR5-4800 being longer than DDR4-3200, because of the improved channel efficiency, DDR5 still outperforms DDR4 in effective bandwidth.
- Only with a DDR5-enabled CPU and motherboard. DDR5 desktop memory is not compatible with DDR4 motherboards.
- Under memory-intensive workloads, DDR5 can deliver up to 2x the bandwidth, per an internal simulation of dual ranked x8 modules in client platforms.
- DDR5 4,800MT/s speeds are comparable to extreme-performance DDR4 memory speeds and 1.5x faster than maximum standard DDR4 speeds of 3200MT/s.
- 12GB, 24GB and 48GB densities are only available in SODIMM form factors.
- Since 12th Gen Intel® CoreTM processors are compatible with either DDR4 or DDR5 memory, adopting DDR5 will yield superior system performance.
- Crucial DDR5 desktop memory modules (UDIMM) can reach rated speeds with Intel XMP 3.0 or AMD EXPOTM turned on in the UEFI/BIOS settings. Applicable for all Crucial DDR5 desktop memory (UDIMM) modules except Crucial DDR5-4800 desktop memory, which supports only Intel® XMP 3.0. Based on published competitor specs for DDR5 memory as of October 2022.
- Altering clock frequency or voltage beyond JEDEC specifications may result in damage to computer components. Warranty voided if Crucial DRAM modules are set to overclock beyond JEDEC specifications, rated speeds, and timings. Micron disclaims any and all liability for such damage.
- DDR5 data rate of 4,800MT/s transfers 1.5x more data than the maximum standard DDR4 data rate of 3,200MT/s.
- Densities at launch and those planned are defined by JEDEC for the life of the DDR5 generation of memory.
- DDR5 modules (DIMMs) introduce voltage regulation on the module through a power management integrated circuit (PMIC), which enables better power regulation and reduces the scope of DRAM power delivery network (PDN) management on the motherboard for increased efficiency.
- On-die ECC (ODECC) is a feature of the DDR5 component specification and should not be confused with the module-level ECC features on server and workstation RDIMMs, LRDIMMs, ECC UDIMMs and ECC. Crucial DDR5 Memory includes ODECC but does not include the additional components necessary for system level ECC.
- Compared to published DDR4-3200 speeds.
- Limited lifetime warranty valid everywhere except Germany and France, where warranty is valid for ten years from the date of purchase.
- Crucial DDR5 Memory is standard JEDEC memory. Memory speed is not controlled exclusively by the module itself but also by the memory controller in the CPU and the BIOS/firmware on the motherboard.
- XMP or EXPO support is provided on desktop memory (UDIMM) modules so customers can easily recover memory performance up to JEDEC speeds if experiencing a system-level downclocking of their memory. Performance recovery is not guaranteed on all DDR5 systems and is highly dependent on the CPU tier, motherboard tier, and BIOS stability.
- DDR5 launch speeds of 4,800MT/s delivers 1.87x the bandwidth of the maximum standard DDR4 speeds of 3,200MT/s. Despite, true latency for DDR5-4800 being longer than DDR4-3200, because of the improved channel efficiency, DDR5 still outperforms DDR4 in effective bandwidth.
Q: will this work for my Lenovo Legion pro 5i ?
A: Not likely. That laptop most likely only supports 32gb dimms, and maybe 48gb (96gb total). 128gb Kits use 64gb dimms and from what i've seen, they will not work.
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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.
Crucial DDR5 Pro Memory has the blazing speed and massive bandwidth needed to support next-gen multi-core CPUs without the fuss of overclocking, latency tuning, die chasing, and LEDs. 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 with Intel XMP 3.0 and AMD EXPO support on every module. Available in speeds up to 5,600MT/s and 64GB densities with a sleek heat spreader, Crucial DDR5 Pro Memory can enable your computer to harness performance that was once only possible with extreme performance memory.
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 32GB, Crucial DDR5 Memory can enable your computer to harness performance that was once only possible with extreme performance memory.
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. Crucial DDR5 Memory can enable your computer to harness performance that was once only possible with extreme performance memory.
| Pros for Crucial - 128GB Kit (2x64GB) DDR5 5600MHz C46 SODIMM Laptop Memory - Black | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Overall Performance, Compatibility, Memory Capacity, Installation Ease, RAM | There were no pros for this product— |
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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 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
