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| Brand | Samsung |
|---|---|
| Model | PM1743 |
| Capacity | 1.92 TB |
| Usage Class | Read Intensive |
| Host Interface | PCIe 5.0 x4 |
|---|---|
| Total Interface Bandwidth | 32 Gb/s |
| Form Factor | E3.S |
|---|
| NAND Flash | Samsung V-NAND 6th Gen TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 3504 TBW |
| Sequential Read | 14000 MB/s |
|---|---|
| Sequential Write | 2800 MB/s |
| Random Read IOPS | 2000000 |
| Random Write IOPS | 125000 |
| Average Latency | 75 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7L3480HCHQ-00B7C |
|---|
Compared with the MZ7L3480HCHQ-00B7C, Samsung’s PM1743 (MZ-WLO1T90) is a clear generational step forward, moving to PCIe 5.0 x4 and delivering up to 14,000 MB/s sequential read and 2,000,000 random-read IOPS for substantially higher host bandwidth and faster read-side latency at the same 1.92 TB class. Its unique value is high-density, read-optimized enterprise performance backed by Samsung 6th Gen V-NAND TLC and 3,504 TBW endurance, making it especially well suited for AI/analytics data staging, scale-out caching tiers, and latency-sensitive database read acceleration where PCIe Gen5 throughput is the differentiator.
With an endurance rating of 3504 TBW and 1 DWPD, the MZ-WLO1T90 is designed to handle very heavy write activity over its service life, far beyond what a typical OS boot drive or general server system disk would generate. In practical terms, under normal enterprise system, boot, logging, and application workloads, this level of endurance provides ample headroom for many years of stable use without concern about write wear. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity if power is suddenly interrupted, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17 and MTBF of 2.5 million hours indicate very strong data integrity and long-term operational reliability, giving procurement teams added confidence for business-critical deployments.
1. The PCIe 5.0 x4 interface, paired with ultra-fast sequential read performance, keeps GPU servers and scale-out analytics nodes fed with data fast enough to shorten model load, checkpoint restore, and large dataset scan times.
2. Its extremely high random read capability is ideal for latency-sensitive OLTP databases, virtualization clusters, and AI retrieval workloads that must serve massive volumes of small I/O requests without bottlenecks.
3. A 1 DWPD endurance rating makes it a strong fit for read-intensive enterprise deployments, offering predictable lifespan and lower replacement risk in cloud, content delivery, and mixed production environments.
4. Samsung 6th Gen V-NAND TLC combines enterprise-class density, power efficiency, and cost balance, helping datacenters scale capacity economically without giving up consistent performance.
5. The very low typical latency improves application responsiveness and QoS consistency, which is especially valuable for real-time trading, metadata services, and high-concurrency transactional platforms.
Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB At 1.92 TB, this SSD sits in the sweet spot of the family. Compared with the 960 GB model, it gives much better headroom for OS images, application data, logs, and future growth, reducing the risk of early capacity pressure. Compared with the 3.84 TB version, it usually delivers the best balance of acquisition cost, usable capacity, and enterprise-class performance consistency. This makes 1.92 TB especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for around 40 to 60 general-purpose virtual machines.
Q: Is MZ-WLO1T90 suitable for a write-heavy database server?
A: Yes, it can support database workloads, but with 1 DWPD it is better suited for mixed-use environments rather than extremely write-heavy servers with continuously intensive write activity.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 full drive write per day. With 1.92 TB capacity and 3504 TBW endurance, it is designed for consistent daily full-drive writes.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. This is critical because it helps protect in-flight data and mapping tables during unexpected power loss, reducing corruption risk in enterprise applications.
Q: What RAID level is recommended for this SSD?
A: RAID 1, RAID 10, or RAID 5 can be considered depending on priorities. For performance-critical and fault-tolerant workloads, RAID 10 is typically the most balanced recommendation.