Secure payments
Standard refund policy
Trade Assurance
| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 3.84 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | PCIe Gen4 x4, NVMe 1.4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V6 (128-layer) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 6800 MB/s |
|---|---|
| Sequential Write | 4000 MB/s |
| Random Read IOPS | 1000000 |
| Random Write IOPS | 180000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZQLB3T8HALS-00007 |
|---|
Compared with the previous MZQLB3T8HALS-00007, the Samsung PM9A3 MZQL23T8HCLS-00A07 advances to PCIe Gen4 x4 and 128-layer V6 TLC NAND, delivering up to 6.8 GB/s sequential read, 4.0 GB/s write, and 1,000,000 random read IOPS for a clear generational gain in bandwidth and transaction density. With 3.84 TB capacity, 1 DWPD endurance, and 7008 TBW, it is a stronger fit than the prior generation for dense virtualization clusters, scale-out cloud storage, and read-heavy database tiers that need higher performance per U.
With an endurance rating of 7008 TBW and 1 DWPD, this SSD is designed to support writing its full capacity once per day across a standard enterprise service life, which is more than sufficient for typical OS, boot, application, and read-heavy server workloads. In practical terms, under normal system-disk usage, this level of endurance provides a very large write margin and supports long-term stable operation without endurance becoming a concern. 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 or incomplete writes. Its UBER of 1.0E-17 and MTBF of 2 million hours further indicate enterprise-class data integrity and dependability, giving buyers confidence in the drive’s suitability for critical business environments.
1. The PCIe Gen4 x4 interface with NVMe 1.4 enables this drive to keep modern dual-socket servers fed with storage bandwidth, reducing application wait time in virtualization, analytics, and scale-out database environments.
2. Its high sequential read performance accelerates large-block data movement, helping shorten backup restore windows, speed up AI model loading, and improve media or data-lake ingestion efficiency.
3. With strong random read capability and microsecond-class response time, the drive sustains fast access to small scattered data, which is critical for OLTP databases, VDI boot storms, and heavily indexed search workloads.
4. The 1 DWPD endurance profile makes it well suited for read-intensive enterprise deployments that still require predictable daily write capacity, such as content delivery, cloud infrastructure, and mixed-use application servers.
5. Samsung’s 128-layer TLC NAND balances density, power efficiency, and reliability, giving data centers a cost-effective flash foundation for scaling capacity without sacrificing enterprise-class consistency.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB In this series, 3.84 TB is the sweet-spot capacity. Compared with 1.92 TB, it gives much better headroom for OS images, application growth, log retention, and snapshot buffers, reducing early capacity pressure in enterprise deployments. Compared with 7.68 TB, it usually delivers a more attractive cost profile while keeping essentially the same enterprise-class sequential throughput and random IOPS behavior. That makes 3.84 TB a balanced choice for medium-scale virtualization, such as a 2-node to 4-node cluster hosting about 60 to 90 mixed business workloads.
Q: Is MZQL23T8HCLS-00A07 suitable for a write-heavy database server?
A: It can support mixed-use database workloads, but for strongly write-heavy servers, 1 DWPD may be limiting. We recommend validating daily write volume against the 7008 TBW endurance rating first.
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 supports one full 3.84 TB drive write per day over the warranty period, consistent with its 7008 TB total endurance specification.
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 metadata during unexpected outages, which is critical for enterprise reliability, transactional integrity, and faster recovery after power events.
Q: What RAID level is recommended for this SSD?
A: For most enterprise deployments, RAID 1 or RAID 10 is recommended for the best balance of redundancy and performance. RAID 5 or 6 may suit capacity-focused environments with controlled write activity.