Secure payments
Standard refund policy
Trade Assurance
| Brand | Samsung |
|---|---|
| Model | 990 PRO |
| Capacity | 4 TB |
| Usage Class | Client / Consumer |
| Host Interface | PCIe Gen4 x4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | M.2 (2280) |
|---|
| NAND Flash | Samsung V-NAND 3-bit MLC |
|---|---|
| Drive Writes Per Day | 0.3 |
| Total Bytes Written | 2400 TBW |
| Sequential Read | 7450 MB/s |
|---|---|
| Sequential Write | 6900 MB/s |
| Random Read IOPS | 1600000 |
| Random Write IOPS | 1550000 |
| Average Latency | 55 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-V8P2T0B/AM |
|---|
Compared with the previous-generation MZ-V8P2T0B/AM, the Samsung 990 PRO 4TB (MZ-V9P4T0B/AM) doubles both usable capacity and endurance to 2400 TBW, while raising sequential write performance from 5,100 MB/s to 6,900 MB/s and scaling random performance up to 1,600,000/1,550,000 IOPS. Its standout value is delivering near-saturated PCIe Gen4 x4 throughput with Samsung V-NAND 3-bit MLC and 4TB of flash in a single client NVMe drive, making it a stronger choice than its predecessor for high-end workstations handling large project files, game asset streaming, and heavy scratch-disk workloads.
With an endurance rating of 2,400 TBW and 0.3 DWPD, the MZ-V9P4T0B/AM can sustain about 2.4 petabytes of total writes over its service life, which is more than sufficient for typical client, workstation, and read-heavy business workloads. In practical terms, when used as an OS boot drive, application drive, or general-purpose productivity SSD, it can comfortably support many years of normal daily use without endurance being a concern. Its specified UBER of 1.0E-15 means the drive is designed to maintain a very low uncorrectable bit error rate, helping protect data integrity during normal operation and making it suitable for dependable day-to-day business use. This model does not include power-loss protection (PLP), so while it is reliable for standard environments, it is best deployed in systems with stable power or upstream protection such as a UPS when write-cache-sensitive workloads are involved.
1. The PCIe Gen4 x4 interface provides the bandwidth headroom needed to keep modern virtualization clusters, analytics engines, and GPU-fed data pipelines from being bottlenecked by storage I/O.
2. Its top-tier sequential read performance accelerates large-block workloads such as database backup recovery, media streaming, and rapid dataset loading for AI and HPC environments.
3. The exceptionally high random read capability enables dense VM farms, metadata-heavy applications, and high-concurrency OLTP platforms to sustain fast response times even under heavy mixed-user demand.
4. With a read-optimized endurance profile backed by Samsung V-NAND 3-bit MLC, this drive is well suited for scale-out content delivery, boot images, reference data, and cloud tiers where capacity and efficiency matter more than constant write saturation.
5. The ultra-low typical latency helps reduce tail-response delays, improving application consistency for latency-sensitive services such as real-time transaction processing and high-frequency query workloads.
Lower capacity reference: 2 TB Higher capacity reference: No larger official capacity is offered in the same MZ-V9P series; 4 TB is the top-capacity SKU. Capacity positioning analysis: The 4 TB MZ-V9P4T0B/AM sits at the sweet spot of the series. Compared with the 2 TB model, it provides much better space headroom for denser datasets, longer write endurance planning, and fewer capacity-related refresh cycles, while keeping broadly similar sequential throughput and random IOPS behavior. Since there is no larger in-series option, 4 TB also represents the best balance of usable capacity, platform simplicity, and cost efficiency without moving into a different product tier. It is well suited for a mid-sized virtualization cluster hosting about 60 to 80 mixed-application VM boot and utility volumes.
Q: Is MZ-V9P4T0B/AM suitable for a write-heavy database server?
A: Not ideally. With 0.3 DWPD and 2400 TBW, this 4 TB SSD is better suited for client, read-intensive, or mixed workloads rather than sustained write-heavy database server environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Its endurance rating is 0.3 DWPD, meaning it supports about 0.3 full drive writes per day across the warranty period, equivalent to roughly 1.2 TB of writes daily.
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 or database systems 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: For most deployments, RAID 1 or RAID 10 is recommended to improve redundancy and performance. Avoid relying on a single drive, especially since this model does not provide PLP.