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| Brand | Samsung |
|---|---|
| Model | 850 EVO |
| Capacity | 250GB |
| Usage Class | Client |
| Host Interface | SATA |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | TLC V-NAND |
|---|---|
| Drive Writes Per Day | 0.16 |
| Total Bytes Written | 75 TBW |
| Sequential Read | 540 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 88000 |
| Average Latency | 50 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-7TE250 |
|---|
The Samsung 850 EVO 250GB (MZ-75E250) is a strong SATA upgrade for client and mixed desktop workloads, pairing 540/520 MB/s sequential performance with up to 97,000/88,000 IOPS and 75 TBW endurance in a compact TLC V-NAND design. Compared with the previous-generation MZ-7TE250, it brings a clear generational step forward through 3D TLC V-NAND—delivering better endurance, stronger write consistency, and improved power efficiency while fully saturating the SATA interface.
With a rated endurance of 75 TBW and 0.16 DWPD, the MZ-75E250 is well suited for typical light-duty workloads such as OS boot, office applications, web access, and general business use. In practical terms, for a system drive writing around 20 GB per day, this endurance level can support roughly 10 years of use, giving purchasers confidence for standard desktop or embedded deployments. In reliability terms, the drive is specified at 1.5 million hours MTBF and an UBER of 1.0E-15, meaning the expected rate of unrecoverable read errors is very low and aligned with standard commercial SSD quality levels. This model does not include power-loss protection, so while it is a dependable choice for normal client or non-critical applications, systems with frequent sudden power interruption or strict write-integrity requirements should use upstream power protection or consider a PLP-equipped SSD.
1. The SATA interface makes this drive an easy drop-in upgrade for legacy enterprise servers and storage arrays, improving performance without requiring a platform refresh.
2. Its top-end sequential read speed helps accelerate boot storms, backup restores, and large-file retrieval in read-heavy business environments.
3. Strong random read capability supports high-transaction workloads such as VDI, web hosting, and database queries, improving responsiveness under mixed-user access.
4. Built with TLC V-NAND and rated for modest daily write volume, it is best suited for read-centric enterprise roles where capacity efficiency matters more than sustained write endurance.
5. The low typical latency helps reduce storage wait time for applications, enabling faster request handling and more consistent service-level performance.
Reference capacities in the same series for MPN MZ-75E250 (250GB): Lower capacity: 120GB Higher capacity: 500GB Typical performance reference: 120GB: up to 540 MB/s read, 410 MB/s write; up to 94K/88K random read/write IOPS 250GB: up to 540 MB/s read, 520 MB/s write; up to 97K/88K random read/write IOPS 500GB: up to 540 MB/s read, 520 MB/s write; up to 98K/90K random read/write IOPS Capacity positioning analysis: The 250GB model sits at the sweet spot of this series. Compared with the 120GB version, it gives meaningfully better headroom for OS images, application stacks, logs, and overprovisioning, reducing the risk of early capacity pressure. Compared with the 500GB version, it preserves nearly the same everyday SATA performance while keeping acquisition cost and fleet refresh budgets under tighter control. It is best suited for small-to-mid virtualization clusters, such as boot and utility storage for roughly 20 to 30 lightweight virtual machines.
Q: Is MZ-75E250 suitable for a write-heavy database server?
A: No. With TLC V-NAND, 75 TBW, and 0.16 DWPD, MZ-75E250 is better suited for client or light mixed-use workloads than write-heavy database server environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It supports about 0.16 full drive writes per day over a 5-year period, which equals roughly 40 GB of writes daily, based on 250GB capacity and 75 TBW.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include PLP. This matters because sudden power failure can leave in-flight data or metadata unwritten, increasing corruption risk in transactional or enterprise storage workloads.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is generally recommended for better redundancy and read performance. Avoid parity-heavy RAID for sustained write-intensive workloads, given this drive’s modest endurance rating.