PM9A3 1.92TB vs PM9A3 3.84TB
The PM9A3 1.92TB and the PM9A3 3.84TB are both enterprise SSDs we supply tested from Hong Kong, and the figures below are the same ones published on each product page. They share 4 listed specification rows and separate on endurance, sequential r/w, random r/w (4kb), so the decision is less about "which is better" and more about which of those differences your platform or workload can actually use.
Nothing on this page is a price: used and refurbished hardware is repriced weekly, so both are quoted on request against confirmed stock with the date the quote holds until. If you are replacing a part, send the platform and we will confirm the population before you commit.
Side by side
PM9A3 1.92TB vs PM9A3 3.84TB specifications
| Specification | PM9A3 1.92TB | PM9A3 3.84TB |
|---|---|---|
| Interface | PCIe Gen4 x4, NVMe 1.4 | PCIe Gen4 x4, NVMe 1.4 |
| Endurance | 1 DWPD (approx. 3,504 TBW) | 1 DWPD (approx. 7,008 TBW) |
| Form Factor | 2.5-inch U.2 (SFF-8639) | 2.5-inch U.2 (SFF-8639) |
| Sequential R/W | Up to 6,800 / 2,700 MB/s | Up to 6,800 / 3,700 MB/s |
| Random R/W (4KB) | Up to 850K / 130K IOPS | Up to 1,000K / 180K IOPS |
| NAND / Controller | Samsung 128-layer V-NAND TLC / Elpis | Samsung 128-layer V-NAND TLC / Elpis |
| Security | AES 256-bit, TCG Opal, power-loss protection | AES 256-bit, TCG Opal, power-loss protection |
| Model | Samsung PM9A3 1.92TB (MZQL21T9HCJR) | Samsung PM9A3 3.84TB (MZQL23T8HCLS) |
Rows that differ are highlighted. Figures are the same ones published on each product page; where a figure is community-sourced rather than vendor-published it is stated on that page. Confirm every part against your build sheet when ordering.
Where they differ
- ·Endurance — PM9A3 1.92TB: 1 DWPD (approx. 3,504 TBW); PM9A3 3.84TB: 1 DWPD (approx. 7,008 TBW).
- ·Sequential R/W — PM9A3 1.92TB: Up to 6,800 / 2,700 MB/s; PM9A3 3.84TB: Up to 6,800 / 3,700 MB/s.
- ·Random R/W (4KB) — PM9A3 1.92TB: Up to 850K / 130K IOPS; PM9A3 3.84TB: Up to 1,000K / 180K IOPS.
What they share
Interface: PCIe Gen4 x4, NVMe 1.4; Form Factor: 2.5-inch U.2 (SFF-8639); NAND / Controller: Samsung 128-layer V-NAND TLC / Elpis; Security: AES 256-bit, TCG Opal, power-loss protection.
Decision
Which one to buy
For enterprise SSDs the decision is interface and endurance before capacity. A PCIe/NVMe drive removes the SAS/SATA controller bottleneck and is the right choice for latency-bound databases and tiering; a SATA drive is cheaper per terabyte and plenty for sequential backup, logging and capacity tiers. Endurance (DWPD) tells you whether the drive is built for write-heavy work or read-mostly storage — buying a read-optimised drive for a write-heavy job is how arrays get replaced early. Capacity follows once interface and endurance match the workload.
Choose the PM9A3 1.92TB if
- ·Random R/W (4KB): Up to 850K / 130K IOPS
Choose the PM9A3 3.84TB if
- ·Random R/W (4KB): Up to 1,000K / 180K IOPS
Photos
What the two look like
PM9A3 1.92TB
Photo from the PM9A3 1.92TB page. Every unit's label is read against your order before dispatch.
PM9A3 3.84TB
Photo from the PM9A3 3.84TB page. Every unit's label is read against your order before dispatch.
Frequently asked questions
How much do the PM9A3 1.92TB and the PM9A3 3.84TB cost?
We do not publish prices for either: secondary-market hardware is repriced weekly. Send the quantity, the platform and the condition you want and we quote both against confirmed stock, with the date the figure holds until.
What is the main difference between the PM9A3 1.92TB and the PM9A3 3.84TB?
Endurance (PM9A3 1.92TB: 1 DWPD (approx. 3,504 TBW); PM9A3 3.84TB: 1 DWPD (approx. 7,008 TBW)); Sequential R/W (PM9A3 1.92TB: Up to 6,800 / 2,700 MB/s; PM9A3 3.84TB: Up to 6,800 / 3,700 MB/s); Random R/W (4KB) (PM9A3 1.92TB: Up to 850K / 130K IOPS; PM9A3 3.84TB: Up to 1,000K / 180K IOPS).
Can I use the PM9A3 1.92TB and the PM9A3 3.84TB in the same system?
Yes — both are 2.5-inch-class drives, so they can live in the same server as long as your bays and controller support the interfaces (PCIe Gen4 x4, NVMe 1.4 vs PCIe Gen4 x4, NVMe 1.4). Mixed capacities are normal in an array; mixed models in one RAID group is a controller-policy decision.
Which one should I buy?
Buy the one whose strong points match the job: see the "Choose" section above. If you are replacing an existing part, send the platform or the old part number and we will confirm compatibility before you order.
What condition are they in, and do you ship worldwide?
Both are supplied tested with a 1-year written warranty. Condition is stated line by line before you order — new, decommissioned pull or OEM tray — and we ship worldwide from the Hong Kong warehouse with full export documentation, typically 3–7 days by air.
Get a quote for either — or both
Tell us the quantity, the platform and the condition you need. We confirm stock and put a firm figure in writing with the date it holds until.
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