SANDISK Ultra 3D NAND 4TB Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - SDSSDH3-4T00-G26
Bottom line: The SANDISK Ultra 3D NAND 4TB Internal SSD: Full 4TB in a standard 2.5-inch 7mm case that fits most laptop drive bays; main trade-off: SATA III caps it at 560 MB/s, far under any NVMe drive.
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Pros & Cons
Pros
- ✓ Full 4TB in a standard 2.5-inch 7mm case that fits most laptop drive bays
- ✓ 560 MB/s reads and 520 MB/s writes, essentially saturating the SATA III 6 Gb/s link
- ✓ 3D NAND raises endurance and cuts power draw versus planar flash
- ✓ Shock-resistant design protects data if the machine gets dropped
Cons
- ✗ SATA III caps it at 560 MB/s, far under any NVMe drive
- ✗ nCache 2.0 write buffering means sustained large transfers can slow past the cache
- ✗ SanDisk quotes speeds from internal testing, so real numbers vary by host and usage
- ✗ 2.5-inch form factor needs a drive bay plus SATA and power cables, unlike M.2
Manufacturer description
The SanDisk Ultra 3D NAND 4TB Internal SSD (SDSSDH3-4T00-G26) is a 2.5-inch, 7mm SATA III drive built for people who have run out of room on a mechanical disk and want the whole library on flash. It reaches sequential read speeds up to 560 MB/s and sequential write speeds up to 520 MB/s over the 6 Gb/s SATA interface, which is roughly the ceiling of what the connector allows. SanDisk's own comparison puts it well ahead of a 7200 RPM SATA 2.5-inch hard drive on PCMark Vantage scores, with faster boot-up, quicker application loads, and cooler, quieter operation. The 3D NAND layout raises…
SpecPicks Verdict
SpecPicks scored SANDISK Ultra 3D NAND 4TB Internal SSD using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Compare with similarly-priced alternatives in the ssds & storage category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
How fast is the SanDisk Ultra 3D 4TB SSD?
Up to 560 MB/s sequential read and up to 520 MB/s sequential write over SATA III 6 Gb/s. SanDisk notes those figures come from internal testing and vary with the host device, usage conditions, and drive capacity.
Will this fit in my laptop?
It is a 2.5-inch drive at 7mm height, the standard size for laptop drive bays. If your laptop takes a 2.5-inch SATA drive at 7mm or taller, it fits; machines that only accept M.2 sticks will not take it.
Is it fast enough for gaming?
Yes for load times against a hard drive. SanDisk positions it for faster boot-up and gaming and graphics performance, benchmarking it against a 7200 RPM SATA 2.5-inch hard drive using PCMark Vantage scores. A SATA SSD will not match NVMe transfer rates.
What is nCache 2.0?
SanDisk's write-caching technology on this drive. It buffers incoming writes to deliver faster speeds on everyday transfers, which is what keeps application loads and file moves quick.
Does it come with a warranty?
Warranty terms are not listed in this product data. Check the SanDisk product listing on Amazon for current warranty coverage and registration details before you buy.
Key Features
- Accelerate your PC for faster boot-up and blazing-fast gaming and graphics
- Ultra-fast: sequential read speeds of up to 560MB/s; sequential write speeds of up to 520MB/s (1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors. IOPS = input/output operations per second.)
- 3D NAND provides greater endurance so your drive lasts longer and uses less power
- nCache 2.0 technology delivers blazing-fast speeds
- Shock-resistant to help keep your data safe—even if you drop your computer
Full Specifications
| Brand | Sandisk |
|---|---|
| Color | Black |
| Model Name | SanDisk Ultra 3D NAND Internal SSD |
| Read Speed | 560 megabytes_per_second |
| Unit Count | 1 Count |
| Form Factor | 2.5-inch |
| Media Speed | 520 megabits_per_second |
| Model Number | SDSSDH3-4T00-G26 |
| Compatibility | PC |
| Built-In Media | SanDisk Ultra 3D NAND Internal SSD |
| Hard-Drive Size | 4 TB |
| Mfr Part Number | SDSSDH3-4T00-G26 |
| Number of Items | 1 |
| Special Feature | Shock Resistant |
| Hardware Platform | PC |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Laptop |
| Data Transfer Rate | 560 megabytes_per_second |
| Enclosure Material | Polycarbonate |
| Additional Features | Shock Resistant |
Ready to buy?
SANDISK Ultra 3D NAND 4TB Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - SDSSDH3-4T00-G26 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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