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| Brand | Samsung |
|---|---|
| Model | 850 PRO |
| Capacity | 1 TB |
| Usage Class | Client / Consumer High End |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung 3D V-NAND 32-layer 2bit MLC |
|---|---|
| Drive Writes Per Day | 0.08 |
| Total Bytes Written | 300 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
| Random Read IOPS | 100000 |
| Random Write IOPS | 9000 |
| Average Latency | 50 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-7PD1T0BW |
|---|
The Samsung 850 PRO 1 TB (MZ-7KE1T0BW) stands out by combining 32-layer 2-bit MLC 3D V-NAND with near-SATA-limit throughput of 550/520 MB/s, giving it a rare mix of client-class responsiveness and workstation-grade NAND durability. Compared with the previous-generation MZ-7PD1T0BW, it delivers a clear generational upgrade through V-NAND adoption, higher endurance at 300 TBW, and stronger sustained reliability for read-heavy professional workloads, premium desktops, and high-duty boot/application drives.
With an endurance rating of 300 TBW and 0.08 DWPD, this SSD is well suited for typical read-focused workloads such as OS boot, office applications, and general data access. In practical terms, for a 1 TB system drive used under normal daily business conditions, this level of endurance is generally sufficient for many years of stable operation, making it a dependable choice for standard client or light-duty deployment. From a reliability perspective, the 2 million hour MTBF indicates a mature and stable platform, while the UBER specification of 1.0E-15 reflects a very low unrecoverable bit error rate, supporting strong data integrity during normal operation. This model does not include power loss protection (PLP), so it is best positioned for environments where sudden power interruption risk is controlled by stable system power or external UPS protection rather than for write-critical enterprise caching scenarios.
1. The SATA interface paired with near-bus-limit sequential read performance makes this drive a drop-in upgrade for legacy enterprise platforms, accelerating full-dataset scans, backups, and boot workflows without changing the existing storage stack.
2. Its strong random read capability supports dense virtual machines, metadata-heavy databases, and read-centric application servers by sustaining fast access under highly fragmented request patterns.
3. The modest write endurance profile makes it best suited for read-dominant enterprise workloads such as content delivery, reference data stores, and boot media rather than intensive logging or write-heavy transactional systems.
4. Samsung’s 3D V-NAND with MLC architecture delivers a balanced mix of reliability, consistent performance, and lower write amplification, which is valuable for always-on datacenter operation.
5. Very low typical latency helps reduce storage response time at the microsecond level, improving application responsiveness for latency-sensitive services and helping servers complete more transactions per unit time.
Lower capacity reference: 512 GB Higher capacity reference: 2 TB In the Samsung 850 PRO family, 1 TB is the sweet-spot capacity. Compared with 512 GB, it gives much better headroom for OS images, application growth, snapshots, and steady overprovisioning, reducing the risk of early space pressure. Compared with 2 TB, it preserves nearly the same class of SATA performance while landing at a more efficient acquisition cost and lower $/workload commitment. This makes 1 TB ideal for medium-scale deployments, such as a virtualization cluster hosting around 40 to 60 mixed-use server boot and application volumes.
Q: Is MZ-7KE1T0BW suitable for a write-heavy database server?
A: Not ideally. With 0.08 DWPD and 300 TBW, this SSD is better for read-centric or mixed workloads. Write-heavy database servers typically require much higher endurance and usually PLP support.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 0.08 drive writes per day, meaning about 80 GB of writes daily on a 1 TB drive. This aligns with its 300 TBW endurance specification.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include PLP. Power loss protection is critical in server environments because it helps prevent in-flight data loss and reduces metadata or filesystem corruption during sudden outages.
Q: What RAID level is recommended for this SSD?
A: For business use, RAID 1 or RAID 10 is generally recommended for better redundancy and performance balance. Avoid relying on a single drive where uptime and data protection matter.