The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →To find out whether your computer can use a faster or larger SSD, identify its exact model and check the manufacturer’s specifications and service manual. Confirm the drive type and interface, physical dimensions, available slot or bay, maximum supported capacity, and the system’s speed limits before you buy. “M.2” describes a drive’s shape, not a guarantee that it supports NVMe.
1. Find your computer’s exact model
Use the full model name or number—not just a broad product family—because storage options can differ between configurations. Look for the identifier on the computer, in its system settings, or on the manufacturer’s support page. Search that model on the manufacturer’s website and open its technical specifications and user or service manual. ASUS and MSI both direct users to check storage support against the exact model (ASUS support guidance; MSI storage-upgrade guidance).
Record the model identifier and any configuration details shown on the support page. If the manufacturer lists several versions, make sure you consult the one that matches your computer.
2. Check what is installed—and what can be added
On Windows, open System Information and go to Components → Storage → Disks to see information about installed drives, including their reported size. You can also open Defragment and Optimize Drives to see the drive’s reported media type. These checks describe the hardware currently in the computer; they do not prove that a different drive will be compatible or that another slot is available.
#1 Best Overall
- MEET THE NEXT GEN: Consider this a cheat code; Our Samsung 990 PRO Gen4 SSD helps you reach near max performance with lightning-fast speeds; Whether you’re a hardcore gamer or a tech guru, you’ll get power efficiency built for the final boss
- REACH THE NEXT LEVEL: Gen4 steps up with faster transfer speeds and high-performance bandwidth; With a more than 55% improvement in random performance compared to 980 PRO, it’s here for heavy computing and faster loading
- THE FASTEST SSD FROM THE WORLD'S FLASH MEMORY BRAND: The speed you need for any occasion; With read and write speeds up to 7450/6900 MB/s you’ll reach near max performance of PCIe 4.0 powering through for any use
- PLAY WITHOUT LIMITS: Give yourself some space with storage capacities from 1TB to 4TB; Sync all your saves and reign supreme in gaming, video editing, data analysis and more
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A compatibility tool such as Crucial’s scanner or selector can help identify system details and possible upgrade options, but use the computer maker’s specifications and manual to verify the exact model’s limits (Crucial System Scanner and Selector).
3. Match the drive interface and protocol
Check whether your computer supports a 2.5-inch SATA SSD, an M.2 SATA SSD, an M.2 PCIe/NVMe SSD, or more than one of these. Do not choose by connector shape alone. M.2 is a form factor, and an M.2 slot may support SATA, PCIe/NVMe, or both; some support only one. Dell cautions that not all M.2 drives work in all systems (Dell SSD FAQ).
Rank #2
- THE SSD ALL-STAR: The latest 870 EVO has indisputable performance, reliability and compatibility built upon Samsung's pioneering technology.Computer Platform:PC.Encryption : Class 0 (AES 256) TCG/Opal v2.0, MS eDrive (IEEE1667), Environmental Specs - Shock : 1,500 G & 0.5 ms (Half sine).
- EXCELLENCE IN PERFORMANCE: Enjoy professional level SSD performance with 870 EVO, which maximizes the SATA interface limit to 560/530 MB/s sequential speeds, Accelerates write speeds and maintains long term high performance with a larger variable buffer
- INDUSTRY DEFINING RELIABILITY: Meet the demands of every task from everyday computing to 8K video processing, with up to 2,400 TBW
- MORE COMPATIBLE THAN EVER: 870 EVO has been compatibility tested for major host systems and applications, including chipsets, motherboards, NAS, and video recording devices. Interface- SATA 6GB/s, compatible with SATA 3GB/s and SATA 1.5GB/s interfaces
For the same reason, a listing that says “M.2 NVMe” is not enough to establish compatibility. Confirm that the computer’s specifications explicitly support the drive’s protocol and interface.
4. Confirm physical fit and whether a slot is free
For an M.2 drive, check the supported length, key and interface in the model-specific documentation. A designation such as 2280 refers to an M.2 size; it does not, by itself, confirm protocol compatibility. Also find out whether the M.2 slot is already occupied. If you are considering a 2.5-inch SATA drive, verify that the computer has the bay, connector and space required. MSI’s guidance explains why supported lengths, key/interface types and model-specific slots matter (MSI storage-upgrade guidance).
Rank #3
- HUGE SPEED BOOST: Get random read/write speeds that are 40%/55% faster than 980 PRO; Experience up to 1400K/1550K IOPS, while sequential read/write speeds up to 7,450/6,900 MB/s reach near the max performance of PCIe 4.0*
- BREAKTHROUGH POWER EFFICIENCY: Use less power and get more performance; Enjoy up to 50% improved performance per watt over 980 PRO, plus optimal power efficiency with max PCIe 4.0 performance**
- SMART THERMAL CONTROL: Samsung's own nickel-coated controller delivers effective thermal control; With its slim size, 990 PRO is a perfect fit for desktops and laptops that meet the PCI-SIG D8 standard***
- THE CHAMPION MAKER: Up to 65% improvement in random performance enables faster loads for an ultimate gaming experience on PS5 and DirectStorage PC games****
- SAMSUNG MAGICIAN SOFTWARE: Get the most out of your SSD with Samsung Magician's advanced yet intuitive optimization tools; Monitor drive health, protect valuable data, and receive important updates for your 990 PRO
If the existing drive occupies the only compatible slot, upgrading may require replacing it rather than adding a second drive. Check the manual for the actual internal layout and supported installation options.
5. Check maximum capacity and speed limits
Look up the maximum supported storage capacity and interface generation for your exact model. Do not infer a capacity limit from the connector, or assume that another computer in the same product line has the same limit. As an example—not a general rule—ASUS’s support guidance describes a configuration limited to a 512 GB M.2 NVMe PCIe 3.0 SSD. The figure applies to that example, not to ASUS computers generally (ASUS support guidance).
Rank #4
- Upgrade your laptop or desktop computer and feel the difference with super-fast OS boot times and application loads
- Exceptional performance offering up to 535MB/s seq. Read and 500MB/s seq. Write speeds
- Superior performance as compared to traditional hard drives (HDD)
- Ultra-low power consumption
- Backwards compatible with SATA II 3GB/sec
A newer, faster SSD may operate in a system with an older PCIe generation, but the host’s generation and lane limit constrain its performance. Crucial’s installation guide explains: “Though NVMe SSDs are backward compatible (meaning a Gen5 SSD will work in a Gen4 system, etc.) they are not forward compatible, and you will not be able to achieve Gen5 performance in a Gen4 system” (Crucial T705 installation guide). In practical terms, a faster drive does not make an older computer run at the drive’s advertised maximum speed.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.6. Compare candidate drives against the computer’s documented support
Before buying, compare each candidate with the model-specific documentation across these points:
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Best Value
- THE SSD ALL-STAR: The latest 870 EVO has indisputable performance, reliability and compatibility built upon Samsung's pioneering technology. S.M.A.R.T. Support: Yes
- EXCELLENCE IN PERFORMANCE: Enjoy professional level SSD performance which maximizes the SATA interface limit to 560 530 MB/s sequential speeds,* accelerates write speeds and maintains long term high performance with a larger variable buffer, Designed for gamers and professionals to handle heavy workloads of high-end PCs, workstations and NAS
- INDUSTRY-DEFINING RELIABILITY: Meet the demands of every task — from everyday computing to 8K video processing, with up to 600 TBW** under a 5-year limited warranty***
- MORE COMPATIBLE THAN EVER: The 870 EVO has been compatibility tested**** for major host systems and applications, including chipsets, motherboards, NAS, and video recording devices
- UPGRADE WITH EASE: Using the 870 EVO SSD is as simple as plugging it into the standard 2.5 inch SATA form factor on your desktop PC or laptop; The renewed migration software takes care of the rest
- Physical fit: 2.5-inch or M.2, and the supported M.2 length and key where relevant.
- Interface and protocol: SATA or PCIe/NVMe, as supported by the computer.
- Capacity: within the model’s stated maximum.
- Performance: compatible with the supported PCIe generation and lane limit; advertised drive speed may exceed what the system can use.
- Installation option: a free compatible slot or bay, or a plan to replace the existing drive.
These checks determine compatibility; they are not a ranking of SSD brands or models.
Quick Recap
7. Prepare for installation
- Back up your files. Save important data somewhere separate from the drive you plan to replace or modify.
- Follow the model’s service instructions. Use the computer or motherboard manual for access and installation steps, including any model-specific precautions.
- Do not force a drive that does not fit. If an M.2 SSD is not detected after installation, check that it is the supported type and length and that it is seated correctly; consult the manual or manufacturer support if it remains undetected (Crucial SSD troubleshooting guidance).
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
