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| Brand | Samsung |
|---|---|
| Model | 860 PRO Series |
| Capacity | 4TB |
| Usage Class | Consumer / Client / Professional |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 7mm |
|---|
| NAND Flash | Samsung 64-layer 3D V-NAND MLC |
|---|---|
| Drive Writes Per Day | 0.66 |
| Total Bytes Written | 4800 TBW |
| Sequential Read | 560 MB/s |
|---|---|
| Sequential Write | 530 MB/s |
| Random Read IOPS | 100000 |
| Random Write IOPS | 9000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-76P4T0 |
|---|
The MZ-76P4T0E is the right 4TB SATA choice for read-heavy databases, content repositories, and workstation scratch storage that still require the SATA 6Gb/s ecosystem, combining Samsung 64-layer 3D V-NAND MLC with 4,800 TBW (0.66 DWPD) and near-bus-limit 560/530 MB/s performance. Compared with the earlier MZ-76P4T0 listing, this channel SKU keeps the same proven 860 PRO core while offering a stronger fit than typical TLC-based SATA drives in the same class thanks to its markedly higher endurance and more predictable sustained write behavior.
With an endurance rating of 4,800 TBW and 0.66 DWPD, the MZ-76P4T0E can sustain roughly 2.6 TB of writes per day over a five-year design life, which is more than enough for typical OS, boot, application, and read-intensive business workloads. In practical terms, for common system-disk or mixed office/server usage, this level of endurance provides long-term write headroom and can comfortably support many years of stable operation without endurance becoming a concern. For reliability, the specified UBER of 1.0E-15 means the drive is designed for a very low rate of unrecoverable bit errors, helping maintain data integrity during normal enterprise read/write operations. This model does not include power-loss protection (PLP), so while it remains well suited for environments with stable power and proper shutdown, applications with high sensitivity to in-flight write protection during sudden outages should use system-level safeguards such as RAID, UPS, or journaling.
1. The SATA enterprise interface ensures broad compatibility with mainstream servers and storage arrays, making this drive an easy drop-in upgrade for legacy data center platforms without changing backplanes or controllers.
2. Its near-bus-limit sequential read performance accelerates boot storms, backup restores, and large dataset access in read-heavy enterprise workloads.
3. Strong random read capability paired with very low typical latency helps databases, VDI, and metadata-intensive applications respond faster under high concurrency.
4. This endurance profile is well suited for read-centric deployments such as content delivery, analytics caches, and virtualization clusters where predictable reliability matters more than sustained heavy overwriting.
5. Samsung’s 3D V-NAND MLC architecture provides a balanced mix of enterprise-grade consistency, durability, and power efficiency for always-on business environments.
Lower capacity reference: 2TB Higher capacity reference: 8TB At 4TB, this SSD sits in the sweet spot of the family. Compared with the 2TB version, it gives much better headroom for VM growth, log expansion, patch staging, and mixed application datasets, reducing the need for early drive replacement. Compared with the 8TB model, it preserves nearly the same enterprise-class throughput and IOPS profile while keeping acquisition cost and stranded capacity under tighter control. This makes 4TB especially well suited for mid-scale virtualization clusters, such as shared storage pools for 40 to 60 business application virtual machines.
Q: Is MZ-76P4T0E suitable for a write-heavy database server?
A: MZ-76P4T0E can support moderate to mixed database workloads, but it is not ideal for highly write-intensive servers. Its 0.66 DWPD endurance is better suited to read-heavy or balanced enterprise applications.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated at 0.66 DWPD, meaning it can handle about 0.66 full drive writes per day during its warranty period. For a 4TB drive, that equals roughly 2.64TB writes daily.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, MZ-76P4T0E does not include power loss protection. PLP is critical in enterprise environments because it helps prevent in-flight data loss and metadata corruption during unexpected power failures.
Q: What RAID level is recommended for this SSD?
A: RAID 1, 10, or 5 may be chosen depending on performance and redundancy needs. For database or business-critical use, RAID 10 is generally recommended for better fault tolerance and write performance.