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| Brand | Samsung |
|---|---|
| Model | PM1743 |
| Capacity | 3.84 TB |
| Usage Class | Read Intensive |
| Host Interface | PCIe Gen5 x4 |
|---|---|
| Total Interface Bandwidth | 128 Gb/s |
| Form Factor | E3.S |
|---|
| NAND Flash | Samsung V-NAND 6th-Gen 128-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 14000 MB/s |
|---|---|
| Sequential Write | 7100 MB/s |
| Random Read IOPS | 2500000 |
| Random Write IOPS | 250000 |
| 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 | MZWLO3T8HBLS-00A07 |
|---|
Compared with the previous-generation MZWLO3T8HBLS-00A07, the MZWLO3T8HCLS-00A07 moves to a PCIe Gen5 x4 architecture and raises performance to up to 14,000/7,100 MB/s sequential read/write and 2,500,000/250,000 random read/write IOPS, making it a clear upgrade for latency-sensitive AI data pipelines, scale-out databases, and dense virtualization hosts. Its 3.84 TB capacity, 1 DWPD rating, 7,008 TBW endurance, and Samsung 6th-Gen 128-layer V-NAND 3D TLC give the PM1743 a stronger balance of throughput, durability, and rack-level efficiency than its predecessor in mainstream enterprise mixed-read workloads.
With an endurance rating of 7008 TBW and 1 DWPD, this SSD is designed to handle very heavy write workloads, including writing its full capacity every day under rated enterprise operating conditions. In real-world use, especially for boot, system, or mixed read-heavy applications, that endurance provides substantial headroom and supports many years of dependable service without endurance-related concern. Its enterprise-grade power loss protection (PLP) helps preserve in-flight data and critical metadata during unexpected power interruptions, greatly reducing the risk of corruption and improving recovery reliability. An UBER of 1.0E-17, together with a 2.5 million hour MTBF design target, indicates a very high level of data integrity and operational stability for business-critical deployments.
1. The PCIe Gen5 x4 interface, paired with 14,000 MB/s sequential read speed, accelerates data staging and cuts checkpoint, analytics, and large-model load times in bandwidth-hungry enterprise servers.
2. With 2,500,000K random read IOPS, the drive sustains massive parallel access for virtualized databases, high-concurrency OLTP, and real-time inference workloads without becoming a storage bottleneck.
3. A 1 DWPD endurance rating gives enterprises predictable write-life for always-on mixed workloads, helping simplify capacity planning and reduce replacement risk across the SSD’s service window.
4. Samsung V-NAND 6th-Gen 128-layer 3D TLC balances density, power efficiency, and cost, making it well suited for scaling performance-sensitive cloud and data center deployments economically.
5. A typical latency of 75 µs improves application responsiveness and tail-latency behavior, which is critical for transactional systems, caching tiers, and latency-sensitive service-level objectives.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB Capacity Positioning Analysis: In this series, the 3.84 TB model sits at a practical sweet spot between the 1.92 TB and 7.68 TB options. Compared with 1.92 TB, it offers much better capacity headroom for data growth, denser VM placement, and longer refresh cycles without changing the familiar enterprise-class read/write and IOPS profile. Compared with 7.68 TB, it delivers a more balanced acquisition cost, easier budget control, and less risk of overprovisioning while still supporting strong consolidation. It is especially well suited for mid-scale virtualization clusters, mixed database nodes, or high-density boot and application tiers.
Q: Is MZWLO3T8HCLS-00A07 suitable for a write-heavy database server?
A: It can support moderate write-intensive database workloads, but with 1 DWPD, it is better suited for mixed-use environments than extremely write-heavy databases requiring higher endurance SSDs.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1 DWPD, meaning it can sustain one full 3.84 TB drive write per day over its warranty period, with a total endurance of 7008 TBW.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and mapping tables during unexpected outages, which is critical for data integrity, consistency, and enterprise system reliability.
Q: What RAID level is recommended for this SSD?
A: For most enterprise deployments, RAID 1 or RAID 10 is recommended for strong redundancy and performance. RAID 5 may be acceptable for read-focused workloads with balanced capacity efficiency.