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| Brand | Samsung |
|---|---|
| Model | 990 EVO Plus |
| Capacity | 2 TB |
| Usage Class | Client / Consumer |
| Host Interface | PCIe 4.0 x4 / PCIe 5.0 x2 |
|---|---|
| Total Interface Bandwidth | 16 Gb/s |
| Form Factor | M.2 2280 |
|---|
| NAND Flash | Samsung V-NAND 3-bit TLC |
|---|---|
| Drive Writes Per Day | 0.33 |
| Total Bytes Written | 1200 TBW |
| Sequential Read | 7250 MB/s |
|---|---|
| Sequential Write | 6300 MB/s |
| Random Read IOPS | 1050000 |
| Random Write IOPS | 140000 |
| Average Latency | 50 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-V9S4T0 |
|---|
The Samsung 990 EVO Plus 2 TB (MZ-V9S2T0) stands out in the mainstream NVMe tier by combining PCIe 4.0 x4 / PCIe 5.0 x2 host flexibility with up to 7,250/6,300 MB/s sequential performance, 1,050,000 random-read IOPS, and 1,200 TBW endurance on Samsung V-NAND 3-bit TLC. Compared with MZ-V9S4T0, it delivers the same 990 EVO Plus platform advantages in a more deployment-efficient 2 TB capacity point, making it the stronger fit for performance notebooks and workstation boot drives that need high throughput and strong write endurance without moving to a larger 4 TB footprint.
With an endurance rating of 1200 TBW and 0.33 DWPD, the MZ-V9S2T0 can sustain writing about 1.2 petabytes of data over its warranty life, which is more than sufficient for typical client, office, and system-drive workloads. In practical terms, when used as an OS boot drive or general business workstation SSD, this endurance level supports many years of normal daily operation without endurance becoming a concern. Its UBER specification of 1.0E-15 means the drive is designed for a very low uncorrectable bit error rate, helping maintain strong data integrity during normal read operations. This model does not include power-loss protection (PLP), so while it is well suited for standard PC and non-transactional business use, applications with frequent sudden power interruptions or write-critical caching should use platform-level power protection or consider a PLP-equipped drive.
1. The PCIe Gen4 x4 design, with deployment flexibility across Gen5 x2 environments, lets this drive fit a wide range of modern server backplanes while still delivering high throughput per slot and preserving lane budget for other accelerators.
2. Its class-leading sequential read performance shortens dataset, VM image, and AI model load times, helping servers reach productive state faster after boot, failover, or job scheduling.
3. The million-class random read capability makes it well suited for heavily parallel read-centric workloads such as virtual desktop infrastructure, metadata services, search indexes, and high-concurrency OLTP reads.
4. With read-focused endurance, it is a strong match for enterprise tiers like content repositories, analytics serving, and boot or cache layers where capacity efficiency matters more than sustained full-drive rewrites.
5. Samsung’s 3-bit V-NAND TLC, combined with very low typical latency, delivers a practical balance of flash density, consistent QoS, and fast response time for latency-sensitive cloud and database workloads.
Lower-capacity reference: 1 TB Higher-capacity reference: 4 TB In this series, the 2 TB version is the practical sweet spot. Compared with the 1 TB model, it gives much better headroom for OS images, application stacks, logs, and growth, reducing the risk of early capacity pressure. Compared with the 4 TB model, it usually delivers nearly the same mainstream enterprise sequential and random performance while keeping acquisition cost and per-node budget under tighter control. This makes 2 TB especially well suited for mid-scale virtualization clusters, such as hosting boot and utility storage for about 40 to 60 general-purpose virtual machines.
Q: Is MZ-V9S2T0 suitable for a write-heavy database server?
A: Not ideally. With 0.33 DWPD, 1200 TBW, TLC NAND, and no PLP, MZ-V9S2T0 is better suited for client, read-heavy, or mixed workloads than sustained write-heavy database server use.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for about 0.33 full drive writes per day over a typical 5-year warranty. For a 2 TB model, that aligns with its 1200 TBW endurance specification.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include PLP. PLP is critical in enterprise environments because it helps prevent in-flight data loss and metadata corruption during unexpected power failures or system crashes.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is generally recommended, especially for performance and redundancy. For write-intensive workloads, avoid parity-based RAID like RAID 5, as it adds write overhead and wear.