Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsiTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
There is no dependable number of calendar years for an SSD: its model, write workload, operating conditions, and health-management features all matter. To assess your own drive, check its model-specific SMART health or remaining-life report, review its written-data and wear figures if available, and keep a current backup. Treat TBW and health percentages as indicators—not a countdown to failure.
How long does an SSD last?
An SSD does not have one predictable lifespan in years. SanDisk identifies write frequency, drive quality, environmental conditions, and available space as factors that affect longevity. Its guide says a home-use drive can last decades, but that is a manufacturer example, not a guarantee for every SSD or workload.
Manufacturer endurance ratings help describe expected write endurance, but they do not specify the date a drive will stop working. A drive may continue operating beyond its rated endurance, or develop a problem before reaching it. Use its current health reporting and warranty terms together rather than relying on a year estimate.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
What TBW and DWPD tell you
TBW: total bytes written
TBW means terabytes written: the total amount of data a drive is rated to have written over its endurance rating. SanDisk describes TBW as the amount that can be written before failure becomes likely; it is a rating, not an exact point at which the drive must fail.
#1 Best Overall
- Get NVMe solid state performance with up to 1050MB/s read and 1000MB/s write speeds in a portable, high-capacity drive(1) (Based on internal testing; performance may be lower depending on host device & other factors. 1MB=1,000,000 bytes.)
- Up to 3-meter drop protection and IP65 water and dust resistance mean this tough drive can take a beating(3) (Previously rated for 2-meter drop protection and IP55 rating. Now qualified for the higher, stated specs.)
- Use the handy carabiner loop to secure it to your belt loop or backpack for extra peace of mind.
- Help keep private content private with the included password protection featuring 256‐bit AES hardware encryption.(3)
- Easily manage files and automatically free up space with the SanDisk Memory Zone app.(5). Non-Operating Temperature -20°C to 85°C
DWPD: drive writes per day
DWPD expresses how many times the drive’s full capacity can be written each day during a specified warranty period. The duration matters, as do capacity and product specifications, so do not compare DWPD figures without checking those details.
Why TBW is not a failure date
Reaching TBW does not reveal exactly when a drive will fail, and staying below it does not prove the drive is safe. Ratings can matter for warranty coverage, but actual health reporting and the specific warranty terms are more useful for decisions about an individual drive.
Rank #2
- Solid state performance with up to 800MB/s read speeds in a portable drive. (Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.)
- Back up your content and memories on a storage solution that fits seamlessly into your mobile lifestyle.
- Take it with you on your adventures—up to two-meter drop protection means this durable drive can take a beating. (Based on internal testing.)
- Secure it to your belt loop or backpack for extra peace of mind thanks to the tough rubber hook.
- From Sandisk, a brand professional photographers trust to take on assignments.
How to estimate lifespan from your write workload
SanDisk gives this rough calculation:
Estimated years = TBW ÷ (daily writes in TB × 365)
For example, SanDisk uses a 600 TBW drive and an assumed 20 GB written per day to calculate 82.2 years. That is arithmetic based on the stated rating and assumed daily writes, not an observed lifespan or prediction for a particular person’s SSD. Actual write volume, usage conditions, drive management, and failures can differ.
Rank #3
- NEARLY 2X FASTER THAN OUR PREVIOUS GENERATION(8) – move 1,000 high-res photos in under 60 seconds(6) with up to 2000MB/s transfer speeds(2).
- IP65 RATING AND UP TO 3M DROP PROTECTION(3) – protects against spills and drops.
- POCKET-SIZED – fits easily in pockets and small bags.
- SPACE TO OWN YOUR AI CONTENT – speed and capacity to download your high-res clips and photo edits.
- 256-BIT AES ENCRYPTION(4) – helps keep private files secure with password protection.
How to check your SSD’s health
- Identify the exact drive model. Look in your computer’s storage or system information, or use the manufacturer’s utility. Confirm the model before interpreting a health label or applying a manual’s threshold.
- Open a supported health tool. SanDisk describes its Dashboard and also points to operating-system or third-party SMART reporting: Disk Utility First Aid on macOS and
smartctlfrom smartmontools on Linux. Tool availability and labels depend on the drive, operating system, and current product support. - Review the report’s status and details. Check the health result, remaining-life or media-wear data, and total written amount if the tool provides them. SMART attributes and their interpretation differ across drives; a single generic field is not a universal measure.
- Follow serious warnings promptly. Intel recommends backing up and considering replacement when its tool reports warning or critical health states. If a drive becomes read-only at end of life, prioritize copying data and replacing it.
Intel says its remaining-life estimate depends on workload and can vary. Its estimate is limited to Intel SSDs with SMART enabled or an available SMART health log; do not assume that the same label or calculation applies to every brand.
When should you replace an SSD?
Back up important data when the manufacturer’s utility or operating system reports a warning or critical health state, then consider replacement. Treat an end-of-life or read-only state as urgent: Seagate’s IronWolf 525 manual says to replace a drive that has entered read-only mode at end of life. It also says that its model-specific Percentage Used indicator recommends replacement at 100%; that threshold should not be generalized to other SSDs.
Rank #4
- 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
- IT’S A POWER MOVE: Save the power for your performance; Get power efficiency all while experiencing up to 50% improved performance per watt over the 980 PRO; It makes every move more effective with less consumption
Check the exact product warranty as well. Samsung Semiconductor states that warranty coverage ends at the stated time period or TBW, whichever comes first; terms vary by product and region. Warranty eligibility is separate from whether a drive’s current health report indicates a problem.
Free tools Windows power users keep installed
One-click scans. No signup required.
Maintenance that supports SSD operation
- Keep firmware current. Follow the drive maker’s update instructions for the exact model.
- Use TRIM where supported. TRIM lets the system identify blocks that no longer contain needed data. Confirm that the operating system and drive support it.
- Leave working space. SanDisk recommends keeping 10–20% free for wear-leveling and background operations. This is SanDisk’s recommendation, not a universal threshold for every SSD.
- Do not use traditional HDD defragmentation as SSD maintenance. SanDisk says SSDs do not need traditional hard-drive defragmentation.
Wear-leveling distributes writes across flash cells, while error correction and bad-block management help the drive manage errors and failing cells. Kingston also describes over-provisioning, in which some capacity is reserved for controller use. These mechanisms support drive operation; none promises a particular number of extra years.
Best Value
- MADE FOR THE MAKERS: Create; Explore; Store; The T7 Portable SSD delivers fast speeds and durable features to back up any endeavor; Build your video editing empire, file your photographs or back up your blogs all in an instant
- SHARE IDEAS IN A FLASH: Don’t waste a second waiting and spend more time doing; The T7 is embedded with PCIe NVMe technology that brings fast read and write speeds up to 1,050/1,000 MB/s¹, making it almost twice as fast as the T5
- ALWAYS MAKE THE SAVE: Compact design with massive capacity; With capacities up to 4TB, save exactly what you need to your drive – from large working files to game data and everything in between
- ADAPTS TO EVERY NEED: Whether using a PC or mobile phone, count on the T7 for extensive compatibility²; It’s a true team player when it comes to heavy-duty application usage or file-saving
- HI RESOLUTION VIDEO RECORDING: Record Ultra High Resolution (4K 60fs) videos directly onto the T7 Portable SSD with your favorite camera or mobile devices; Supports iPhone 15 Pro Res 4K at 60fps video and more³
What to compare when choosing a replacement
If your drive needs replacing, first verify that a prospective SSD matches your computer’s requirements. For longevity comparisons, use like-for-like specifications rather than treating one brand’s health percentage as directly comparable with another’s.
| Comparison | What to verify |
|---|---|
| Compatibility | Form factor, interface, and capacity supported by your computer. |
| Endurance | TBW, or DWPD together with its stated duration; compare drives of the same capacity where possible. |
| Warranty | Coverage period, TBW limit, product, and region. The applicable terms can end at the earlier time or endurance limit. |
| Health monitoring | Whether the manufacturer provides a utility and which health or wear details it reports for the model. |
Samsung says its documented endurance tests comply with JESD218, but warranty terms remain product-dependent. An endurance rating alone is not enough to rank one SSD as best for every user.
Quick Recap
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.
