Key takeaways
- Bay or slot: A 2.5-inch drive is 7 mm thick in most cases, which fits laptops and desktop bays with a bracket. M.2 drives come in several lengths, with 2280 being the most common.
- SATA M.2 versus NVMe M.2: The two look similar but use different connectors and are not interchangeable. Check the slot description in the manual.
- Cloning: If you are moving your existing system, clone software from the drive maker is the easiest route. Because the new drive is small, make sure used space on the old one is less than the new drive’s capacity.
- Old machines: Very old laptops may need a BIOS update to boot from a new drive. Follow the laptop maker’s instructions.
- Backups: An SSD can fail without warning. Keep important data copied elsewhere.
For most people buying a 250GB drive in 2026, the Samsung 870 EVO is the safest SATA choice and a small NVMe model such as the Samsung 980 or WD Blue SN580 is the better fit if the computer has an M.2 slot. A 250GB SSD is best treated as a boot and applications drive for an older laptop, a spare office machine, a media player, a secondary Linux install or a classroom computer. It is not a games library drive. This guide explains what to look for, what the makers state, and where each option has limits.
Our top picks
As an Amazon Associate we earn from qualifying purchases at no extra cost to you.
Quick answer: who should buy what
If your computer has a 2.5-inch SATA bay and nothing newer, the Samsung 870 EVO 250GB is the long-running reference, and one 2026 ranking of consumer SATA drives still places it at the top of the category. If you want a cheaper SATA drive, reviewers point to the WD Blue SA510, which Western Digital sells from 250GB upward and which one roundup says was rebadged under the SanDisk name in 2026. If you have an M.2 NVMe slot, a small PCIe 3.0 or 4.0 NVMe drive gives faster boot and file transfers and often costs about the same as SATA, so prefer it when the slot exists. Be aware that the Crucial BX500, a popular budget SATA drive, is sold in 240GB rather than 250GB and one source ties its disappearance to Micron’s exit from consumer storage.
At a glance: 250GB SSD comparison
| Drive | Interface | Best for | Key stated specs | Limits |
|---|---|---|---|---|
| Samsung 870 EVO 250GB | SATA III, 2.5-inch | Older laptops, desktops, enclosures | Up to about 560 MB/s read, 530 MB/s write; 512MB cache; 150 TBW; AES 256-bit encryption support | Capped by SATA; fewer capacity options at this size are in stock |
| WD Blue SA510 250GB | SATA III, 2.5-inch or M.2 SATA | Budget SATA upgrade | Up to about 560 MB/s read, 520 MB/s write; five-year warranty per the maker | Branding changed in 2026; SanDisk 520 is the same family per one roundup |
| Crucial BX500 240GB | SATA III, 2.5-inch | Lowest-cost SATA drive | Up to about 540 MB/s read, 500 MB/s write; no DRAM cache; three-year warranty | 240GB not 250GB; reported as being discontinued |
| Samsung 980 250GB | PCIe 3.0 NVMe, M.2 | Light-use NVMe machines | Rated by the maker in the range of about 2,900 MB/s read | No onboard memory, relies on host memory |
| WD Blue SN580 250GB | PCIe 4.0 NVMe, M.2 | Low-cost modern laptops and PCs | Maker lists speeds well above SATA; confirm per-capacity numbers on the spec sheet | Smaller capacities have lower write speeds |
Specifications are the printed ratings from makers or the outlets quoted. Small capacities often write more slowly than larger drives in the same family because there is less flash to spread the work across, so use the per-capacity datasheet rather than the family headline.
Why 250GB still has a use
A fresh Windows installation and a typical set of office programs occupy a small fraction of 250GB. That leaves room for documents and a handful of heavier programs. People still buy this size to revive a ten-year-old laptop, to build a quiet thin client, to host a second operating system or to image a drive for imaging and recovery work. It is also a sensible choice when you keep bulk files on a separate drive or on a network share.
It is a poor fit for modern gaming, video editing or large photo libraries. Many single games are now over a hundred gigabytes, and an SSD works best with some free space. If you will store anything large locally, consider the 500GB or 1TB tier, where the price per gigabyte is generally lower.
Samsung 870 EVO 250GB
Samsung’s published figures put the 870 EVO at up to roughly 560 MB/s sequential read and 530 MB/s write, using V-NAND flash and a 512MB cache, with a 150 TBW endurance rating at 250GB. It supports AES 256-bit encryption and works with Samsung Magician software for firmware updates and health reports. One comparison site rates its overall performance score well above the Crucial BX500, mostly because of the cache and better sustained writes. For a small drive meant to run an operating system for years, those extras are the reason people pay slightly more.
WD Blue SA510 and the SanDisk rebrand
The SA510 is a SATA drive with rated speeds of about 560 MB/s read and 520 MB/s write, available from 250GB to 4TB, and Western Digital attached a five-year limited warranty to it. A 2026 roundup notes that the line has been rebadged as the SanDisk 520. If you see either name, read the product page to confirm the model, capacity and warranty rather than assuming the older specs apply unchanged.
Crucial BX500: the budget SATA option and its caveat
The BX500 is a SATA III 2.5-inch drive rated at up to about 540 MB/s read and 500 MB/s write, with no DRAM cache and a three-year warranty. It comes in 240GB, 480GB, 1TB and 2TB, so there is no true 250GB version. Reviewers have long treated it as the lowest-cost way to move off a hard drive. One source says it is being discontinued after Micron announced it would leave consumer storage, so stock and warranty support may become inconsistent. If you can pay slightly more, the 870 EVO or SA510 give a longer rating and are more likely to stay supported.
Small NVMe options: Samsung 980 and WD Blue SN580
If you have a modern M.2 slot, NVMe drives deliver faster boots, quicker large-file copies and smaller physical size. The Samsung 980 is a PCIe 3.0 drive without onboard DRAM that uses host memory buffering, which is fine for ordinary use. The WD Blue SN580 is a PCIe 4.0 entry drive. Because 250GB models are the slowest of each family, the real advantage over SATA is smaller than the headline numbers suggest. The deciding factor is often whether the device has the slot, not the drive.
Fit and compatibility notes
- Bay or slot: A 2.5-inch drive is 7 mm thick in most cases, which fits laptops and desktop bays with a bracket. M.2 drives come in several lengths, with 2280 being the most common.
- SATA M.2 versus NVMe M.2: The two look similar but use different connectors and are not interchangeable. Check the slot description in the manual.
- Cloning: If you are moving your existing system, clone software from the drive maker is the easiest route. Because the new drive is small, make sure used space on the old one is less than the new drive’s capacity.
- Old machines: Very old laptops may need a BIOS update to boot from a new drive. Follow the laptop maker’s instructions.
- Backups: An SSD can fail without warning. Keep important data copied elsewhere.
Decision table: pick this if
| Pick this | If you |
|---|---|
| Samsung 870 EVO 250GB | Have only a SATA bay and want the best-regarded drive with a long warranty and cache |
| WD Blue SA510 or SanDisk 520 | Want a lower-cost SATA drive with a five-year warranty listed by the maker |
| Crucial BX500 240GB | Find it in stock at a clear discount and accept no cache and a shorter warranty |
| Samsung 980 250GB | Have an NVMe slot and light workloads |
| WD Blue SN580 250GB | Have a PCIe 4.0 slot and want a modern entry NVMe |
Alternatives
- 500GB drives: Often better value per gigabyte, and the extra space helps drives stay fast.
- External portable SSD: If the goal is to boot or carry files rather than upgrade internals, a small portable SSD is flexible.
- Used or refurbished enterprise drives: These exist, but warranty and wear are uncertain, so they suit hobbyists more than first-time buyers.
Frequently Asked Questions
Is 250GB enough for Windows?
Yes, for a basic setup. Windows and office software use a fraction of it, but updates, temporary files and apps accumulate over time. Aim to keep some free space for stable performance.
Should I choose SATA or NVMe at this size?
Choose NVMe if your computer has a compatible M.2 slot, because it is usually faster at a similar cost. Choose SATA if you only have a 2.5-inch bay or are upgrading an older machine. Check the manual before buying.
Why can’t I find a 250GB Crucial BX500?
The BX500 is sold in 240GB rather than 250GB. One source also reports that it is being phased out. Consider the 870 EVO or the SA510 family if you want a drive that is clearly in production.
Will a small SSD slow down as it fills?
Many SSDs perform less well when nearly full because they have less room for caching and maintenance. Leaving a fraction of the capacity empty is a common suggestion from makers. Small drives reach that point faster.
Can I use a 250GB SSD in a game console?
PlayStation 5 internal expansion has a minimum capacity set by Sony, and 250GB is generally below practical use. Check the console maker’s requirements before buying.
How do I move my current system onto it?
Use the cloning tool provided by the drive maker or a trusted disk imaging tool, after confirming that the used space fits. Keep the old drive untouched until the new one boots correctly.
Write Your Review
No reviews yet. Be the first to share your experience!