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| Brand | Samsung |
|---|---|
| Model | 870 EVO |
| Capacity | 2 TB |
| Usage Class | Consumer/Client |
| Host Interface | SATA 3.0 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 inch 7mm |
|---|
| NAND Flash | Samsung V6 (128L) TLC |
|---|---|
| Drive Writes Per Day | 0.3 |
| Total Bytes Written | 1200 TBW |
| Sequential Read | 560 MB/s |
|---|---|
| Sequential Write | 530 MB/s |
| Random Read IOPS | 98000 |
| Random Write IOPS | 88000 |
| Average Latency | 150 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-76E2T0BW |
|---|
The Samsung 870 EVO 2TB (MZ-77E2T0) is a strong SATA upgrade over the MZ-76E2T0BW, raising sequential performance to 560/530 MB/s and adopting Samsung V6 (128-layer) TLC NAND for better power efficiency and more consistent sustained-write behavior. With 1200 TBW endurance, 98,000/88,000 IOPS, and full SATA 6Gb/s saturation, it is an excellent fit for high-duty client systems and read-heavy workstation deployments that need near-interface-limit performance without moving to NVMe.
With an endurance rating of 1200 TBW and 0.3 DWPD, the MZ-77E2T0 can sustain about 1.2 petabytes of total writes, which is more than enough for typical client, office, and system-disk workloads over many years of normal use. In practical terms, for OS boot, applications, documents, and general business data, procurement teams can expect long service life without endurance being a concern under standard daily write volumes. For reliability, the specified UBER of 1.0E-15 indicates a very low uncorrectable bit error rate, helping ensure strong data integrity during normal operation and aligning with mainstream SSD reliability expectations. This model does not include power-loss protection (PLP), so while it is well suited for client PCs and non-transactional business use, it is best paired with stable power conditions or UPS support rather than write-critical enterprise scenarios where in-flight data must be protected during sudden power failure.
1. The SATA 3.0 6Gb/s interface, paired with 560 MB/s sequential read performance, provides a drop-in upgrade for legacy enterprise platforms while accelerating bulk data access for boot volumes, logs, and read-heavy application datasets.
2. With 98,000 K IOPS in random reads, this drive can sustain fast metadata lookups and highly concurrent small-block access, helping virtualized and database workloads stay responsive under queue-heavy traffic.
3. Rated at 0.3 DWPD, the SSD is best aligned with read-centric enterprise deployments where predictable service life and lower replacement frequency matter more than heavy daily overwrite demands.
4. Built on Samsung V6 (128L) TLC NAND, it balances density, cost efficiency, and mature flash behavior, making it well suited for scale-out storage tiers that prioritize dependable capacity economics.
5. A typical latency of 150 µs helps reduce tail-response delays, which is valuable for business applications that depend on consistent transaction timing rather than just peak throughput.
Lower capacity reference: 1 TB Higher capacity reference: 4 TB The 2 TB MZ-77E2T0 sits at the sweet spot of the series. Compared with the 1 TB model, it provides much better headroom for OS images, application stacks, logs, and future data growth, reducing the risk of early capacity pressure. Compared with the 4 TB model, it delivers nearly the same mainstream sequential and random I/O behavior while keeping acquisition cost and fleet-wide budget under tighter control. This makes it especially well suited for mid-sized virtualization clusters, such as hosting boot and application volumes for about 40 to 60 business workloads.
Q: Is MZ-77E2T0 suitable for a write-heavy database server?
A: Not ideally. With TLC NAND, 0.3 DWPD endurance, and no power loss protection, it is better suited for read-heavy or mixed workloads than sustained write-intensive database environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 0.3 DWPD, which means about 0.6 TB, or 600 GB, of writes per day on this 2 TB SSD, up to 1,200 TBW total.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include PLP. That matters because PLP helps protect in-flight data and mapping tables during sudden outages, reducing corruption risk in servers and databases.
Q: What RAID level is recommended for this SSD?
A: For business use, RAID 1 or RAID 10 is generally recommended. These levels provide redundancy and solid performance, while avoiding the heavier write penalty of parity-based RAID.