Samsung MZ-V9S2T0B/AM 2 TB 990 EVO Plus PCIe 4.0 x4 / PCIe 5.0 x2 M.2 2280 Client / Consumer Solid State Drive

General

Brand	Samsung
Model	990 EVO Plus
Capacity	2 TB
Usage Class	Client / Consumer

Interface

Host Interface	PCIe 4.0 x4 / PCIe 5.0 x2
Total Interface Bandwidth	16 Gb/s

Physical Dimension

Form Factor	M.2 2280

Flash & Endurance

NAND Flash	Samsung V-NAND 3-bit TLC
Drive Writes Per Day	0.33
Total Bytes Written	1200 TBW

Performance

Sequential Read	7250 MB/s
Sequential Write	6300 MB/s
Random Read IOPS	1050000
Random Write IOPS	140000
Average Latency	50 μs

Reliability

Mean Time Between Failures	1.5 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	No

Part Number

MPN	MZ-VLB5120

Engineer's Note

Samsung 990 EVO Plus (MZ-V9S2T0B/AM) stands out in the client NVMe tier by combining PCIe 4.0 x4 / PCIe 5.0 x2 host flexibility with Samsung V-NAND 3-bit TLC, delivering up to 7,250/6,300 MB/s and 1,050,000 random-read IOPS in a 2 TB footprint. Compared with the older MZ-VLB5120 generation, it provides a clear generational leap in usable capacity, bandwidth, and endurance—scaling to 2 TB and 1,200 TBW—making it a stronger fit for high-ingest workstation, gaming, and content-creation workloads that need sustained performance with predictable TLC reliability.

Endurance & Reliability

With an endurance rating of 1,200 TBW and 0.33 DWPD, this SSD can sustain about 1.1 TB of writes per day over the warranty period, which is more than sufficient for typical OS, application, and general business workloads. In practical terms, for use as a boot drive, office productivity drive, or read-heavy workstation storage, this level of endurance provides long service life with substantial write headroom. From a reliability perspective, the 1.0E-15 UBER specification indicates a very low probability of unrecoverable bit errors during reads, while the 1.5 million hour MTBF reflects strong long-term component reliability under normal operating conditions. This model does not include power-loss protection (PLP), so it is best suited to client and non-transaction-critical environments where sudden power interruption is less likely or is mitigated by system-level power backup such as a UPS.

Technical Specs & Insights

1. The PCIe 4.0 x4 / PCIe 5.0 x2 host interface gives this drive enough bandwidth headroom to keep modern application servers, virtualization nodes, and edge AI systems from being bottlenecked by storage links.
2. Its 7,250 MB/s sequential read performance accelerates large-file access, reducing wait time for database snapshots, analytics datasets, and VM image loading in enterprise environments.
3. With up to 1,050,000 random read IOPS, the drive can sustain highly concurrent small-block workloads, helping transaction-heavy platforms and metadata-intensive applications respond faster under peak demand.
4. The combination of 0.33 DWPD endurance and Samsung V-NAND 3-bit TLC makes it a strong fit for read-centric enterprise deployments where cost efficiency, predictable lifespan, and high-capacity flash density matter most.
5. A typical latency of 50 µs helps minimize storage response time at the microsecond level, improving QoS consistency for latency-sensitive workloads such as real-time indexing, caching, and high-frequency request handling.

Capacity Sweet

Lower reference capacity: 1 TB Higher reference capacity: 4 TB At 2 TB, this model sits in the sweet spot of the series. Compared with the 1 TB version, it gives meaningfully better space headroom for OS images, application stacks, logs, and growth over time, reducing early capacity pressure. Compared with the 4 TB option, it keeps acquisition cost and power budget more controlled while delivering essentially the same mainstream sequential and random performance profile. This makes 2 TB an excellent fit for a mid-sized virtualization cluster, such as shared boot and utility storage for about 40 to 60 virtual servers.

FAQ