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| Brand | Samsung |
|---|---|
| Model | 870 EVO |
| Capacity | 4 TB |
| Usage Class | Client / Consumer |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 3D TLC |
|---|---|
| Drive Writes Per Day | 0.3 |
| Total Bytes Written | 2400 TBW |
| Sequential Read | 560 MB/s |
|---|---|
| Sequential Write | 530 MB/s |
| Random Read IOPS | 98000 |
| Random Write IOPS | 88000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-77E4T0B/AM |
|---|
Compared with the earlier MZ-77E4T0B/AM, the MZ-77E4T0E is the current 870 EVO 4 TB refresh, preserving Samsung’s top-tier SATA 6 Gb/s performance at up to 560/530 MB/s and 98,000/88,000 IOPS while offering a current-lifecycle part for new deployments. Its standout value in this class is the combination of high-capacity 4 TB SATA storage with Samsung V-NAND 3D TLC and 2,400 TBW endurance, making it a stronger fit than typical mainstream SATA SSDs for workstation boot drives, local content caches, and write-moderate edge systems.
With an endurance rating of 2400 TBW and 0.3 DWPD, the MZ-77E4T0E can support writing about 1.2 TB of data per day over a typical 5-year usage period, which is more than sufficient for common OS boot, office, application, and read-focused business workloads. In practical terms, under typical client or light workstation usage, this level of endurance provides long service life and should comfortably cover many years of normal deployment without write-endurance concerns. For reliability, the specified UBER of 1.0E-15 means the drive is designed for a very low unrecoverable bit error rate, helping ensure stable data reads and dependable long-term operation in everyday business environments. This model does not include power-loss protection (PLP), so while it is well suited for standard client and non-cache-critical applications, environments with frequent sudden power interruptions or mission-critical in-flight write protection requirements should consider system-level power backup or a PLP-equipped SSD.
1. The SATA interface makes this drive a drop-in upgrade for mainstream enterprise servers and storage arrays, enabling broad compatibility without platform changes or costly backplane refreshes.
2. Its strong sequential read performance helps accelerate large-file access, reducing wait time for database snapshots, VM image loading, and backup recovery operations.
3. High random read capability supports dense virtualized workloads and read-heavy databases by serving many small I/O requests in parallel with consistent responsiveness.
4. Its enterprise endurance profile is best suited for read-centric deployments such as boot drives, content repositories, and analytics caches where capacity and efficiency matter more than sustained write intensity.
5. Samsung’s 3D TLC V-NAND, combined with low typical latency, delivers a balanced mix of flash density, stable QoS, and quick application response for latency-sensitive business services.
Lower-capacity reference: 2 TB Higher-capacity reference: None in the same series; 4 TB is the top-capacity model of the Samsung 870 EVO family. At 4 TB, the MZ-77E4T0E sits at the sweet spot of the 870 EVO lineup. Compared with the 2 TB version, it provides much better space headroom for growing datasets, longer refresh cycles, and denser node-level consolidation without materially changing the SATA-class performance profile. Since there is no larger-capacity model in the same series, 4 TB also represents the best balance of usable capacity, consistent performance, and budget control. It is especially well suited for edge clusters, branch-office virtualization, or a 40- to 60-seat VDI pilot environment.
Q: Is MZ-77E4T0E suitable for a write-heavy database server?
A: MZ-77E4T0E is generally not ideal for write-heavy database servers. With 0.3 DWPD, TLC NAND, and no PLP, it is better suited for read-intensive or mixed mainstream workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 0.3 DWPD, meaning about 1.2 TB of writes per day on a 4 TB drive during the warranty period, aligned with its 2400 TBW endurance rating.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, this SSD 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 failure.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is typically recommended, depending on capacity and performance needs. These levels provide stronger redundancy and more predictable recovery behavior than RAID 0 for SSD deployments.