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| Brand | Samsung |
|---|---|
| Model | 860 QVO |
| Capacity | 2 TB |
| Usage Class | Client |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 4-bit QLC |
|---|---|
| Drive Writes Per Day | 0.2 |
| Total Bytes Written | 720 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 89000 |
| Average Latency | 130 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-75E2T0BW |
|---|
The Samsung 860 QVO 2TB (MZ-76Q2T0) is a strong SATA upgrade for read-heavy client and mixed desktop workloads, combining near-interface-limit 550/520 MB/s throughput with 97K/89K IOPS while using high-density 4-bit QLC V-NAND to deliver better cost efficiency at 2TB. Compared with the previous-generation MZ-75E2T0BW, it raises sequential read performance to 550 MB/s and boosts rated endurance to 720 TBW—more than doubling the prior model’s TBW—making it the better choice where capacity per bay and lifecycle value matter most.
With an endurance rating of 720 TBW, the MZ-76Q2T0 can support roughly 197 GB of host writes per day over a 10-year period, which is more than sufficient for typical OS, office, and general business application workloads. In practical terms, for use as a boot drive or light-to-moderate read-focused storage, this level of endurance provides comfortable long-term headroom under normal usage conditions. For reliability, the specified UBER of 1.0E-15 means the drive is designed for a very low rate of unrecoverable bit errors, supporting dependable data reads in everyday operation. This model does not include power-loss protection (PLP), so while it is well suited to client and non-write-critical environments, systems with frequent unexpected power interruptions or strict in-flight write protection requirements should use adequate backup power or consider a PLP-equipped SSD.
1. The SATA 6Gb/s interface, paired with 550 MB/s sequential read performance, provides a stable drop-in upgrade for legacy enterprise servers and storage arrays where predictable throughput matters more than PCIe complexity.
2. With 97,000K random read IOPS, this drive can sustain highly concurrent access patterns, helping virtualized workloads and read-heavy databases respond faster during peak demand.
3. Rated at 0.2 DWPD, it is best aligned with read-centric enterprise use cases such as content repositories, boot volumes, and analytics tiers where write pressure is limited but capacity efficiency is critical.
4. Samsung V-NAND 4-bit QLC enables higher density at lower cost per terabyte, making the SSD especially attractive for large-scale data retention and warm-storage deployments.
5. A typical latency of 130 µs helps reduce storage wait time for frequently accessed data, improving application responsiveness in transaction-heavy business environments.
Lower capacity reference: 1 TB (MZ-76Q1T0) Higher capacity reference: 4 TB (MZ-76Q4T0) Capacity positioning analysis: In this series, the 2 TB model sits at the sweet spot. Compared with the 1 TB version, it provides much better headroom for OS images, application stacks, logs, and steady data growth, reducing the risk of early capacity pressure. Compared with the 4 TB version, it delivers a more balanced choice on budget, usable capacity, and mainstream performance, since sequential throughput and random IOPS remain broadly similar across capacities. It is best suited for small-to-mid virtualization clusters, such as hosting boot and application volumes for about 40 to 60 general-purpose virtual machines.
Q: Is MZ-76Q2T0 suitable for a write-heavy database server?
A: No. The MZ-76Q2T0 is a 2TB SATA SSD using Samsung V-NAND 4-bit QLC with 0.2 DWPD, so it is better suited for read-focused or mixed light-write workloads than write-heavy databases.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 0.2 DWPD, meaning about 0.4TB, or roughly 400GB, of writes per day on the 2TB capacity over the warranty period, aligned with its 720TBW endurance rating.
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 enterprise environments because it helps prevent in-flight data loss and metadata corruption during unexpected power interruptions.
Q: What RAID level is recommended for this SSD?
A: For this SSD, RAID 1 or RAID 10 is generally recommended for better redundancy and read performance. Avoid parity-heavy RAID like RAID 5 for sustained write-intensive workloads.