Samsung PM1725a 800GB U.2 NVMe Enterprise SSD - MZWLL800HEHP-00003
Technical Identity
The Samsung MZWLL800HEHP-00003 is the Samsung PM1725a 800GB 2.5-inch U.2 (SFF-8639) NVMe enterprise SSD - a mixed-use data-center drive built on Samsung V-NAND MLC flash with the Samsung Phoenix controller. The PM1725a was Samsung's first high-performance mixed-use NVMe SSD aimed at OLTP databases, write-heavy VM hosts and tiered-storage scratch tiers, and is the direct predecessor of the PM1725b (PCIe 3.0) and the PM1735/PM1743 generations (PCIe 4.0). This unit is sold by T.E.S IT-SOLUTIONS in Refurbished condition - lab-tested with NVMe SMART verification for drive health, remaining endurance and functionality before shipment.
Engineering Context
The PM1725a 800GB delivers up to 3,200 MB/s sequential read and 1,800 MB/s sequential write across a PCIe 3.0 x4 NVMe 1.2 link. Random performance peaks at approximately 560,000 read IOPS and 100,000 write IOPS at 4K. The drive uses Samsung V-NAND MLC flash, the Samsung Phoenix NVMe controller, capacitor-backed power-loss protection (PLP) and AES 256-bit hardware encryption. Mixed-use endurance class targets workloads with sustained write pressure - notably database write-ahead logs, OLTP transaction storage and virtual-machine datastores - rather than read-only content delivery. Within the Samsung roadmap, the PM1725b is the same PCIe 3.0 generation with slightly higher write throughput (2,000 MB/s, 120K write IOPS); the PM1735 and PM1743 are the PCIe 4.0 successors with higher bandwidth ceilings.
Deployment & Use Cases
Typical deployments for the Samsung PM1725a 800GB include database write-ahead log (WAL) volumes for PostgreSQL, MySQL and Oracle; OLTP transaction stores; real-time analytics scratch tiers in tiered SSD/HDD architectures; high-write VM hosting on VMware ESXi and Microsoft Hyper-V; and capacity-matched replacement or warm-spare units for existing PM1725a estates. For sites already running PM1725a and seeking higher write throughput on the same platform, the PM1725b is the in-generation upgrade path; for greenfield PCIe 4.0 servers, the PM1735 / PM1743 are the current Samsung options.
Specifications
OEM: Samsung
Series: PM1725a (mixed-use enterprise NVMe)
MPN: MZWLL800HEHP-00003
Capacity: 800 GB
Interface: PCIe 3.0 x4, NVMe 1.2
Form Factor: 2.5-inch U.2 (SFF-8639), 15 mm z-height
NAND: Samsung V-NAND MLC
Controller: Samsung Phoenix
Sequential Read: up to 3,200 MB/s
Sequential Write: up to 1,800 MB/s
Random Read IOPS (4K): ~560,000
Random Write IOPS (4K): ~100,000
Endurance class: Mixed-Use
Power-Loss Protection: Capacitor-backed (PLP)
Encryption: AES 256-bit hardware
Condition: Refurbished - lab-tested by T.E.S IT-SOLUTIONS
What This Is NOT
This is not a consumer SATA SSD - it is an enterprise NVMe drive on PCIe 3.0 x4.
This is not a SAS drive and will not work in SAS-only backplanes.
This is not an M.2 module - it is a 2.5-inch U.2 (SFF-8639) 15 mm device.
This is not a read-intensive (RI) drive - it is mixed-use, designed for sustained write workloads.
This is not the PM1725b (1,800 vs. 2,000 MB/s write, 100K vs. 120K write IOPS) and not the PCIe 4.0 PM1735 / PM1743.
Compatibility
The Samsung PM1725a 800GB MZWLL800HEHP-00003 installs in any U.2 (SFF-8639) NVMe-capable 2.5-inch bay, including 15 mm hot-swap NVMe backplanes from Dell PowerEdge (R-series with NVMe backplane option), HPE ProLiant (DL3xx Gen10 with U.2 NVMe cages), Lenovo ThinkSystem SR-series, Supermicro Ultra/BigTwin NVMe chassis and similar OEM platforms. It can also be used behind U.2-to-PCIe AIC adapters in workstations and rack servers without native U.2 bays. The drive is PCIe 3.0 x4 - it will operate at PCIe 3.0 speeds even in Gen4 / Gen5 slots and will not exceed its native bandwidth ceiling. It does not fit standard 7 mm SATA trays due to its 15 mm z-height, and it does not operate in SATA or SAS backplanes.
FAQ
What are the throughput and IOPS of the Samsung PM1725a 800GB MZWLL800HEHP?
The Samsung PM1725a 800GB (MZWLL800HEHP-00003) delivers up to 3,200 MB/s sequential read and 1,800 MB/s sequential write over PCIe 3.0 x4 NVMe 1.2. Random read reaches approximately 560,000 IOPS and random write approximately 100,000 IOPS.
Can the Samsung PM1725a MZWLL800HEHP be used in a SATA or 7mm drive bay?
No. The Samsung PM1725a MZWLL800HEHP is an NVMe U.2 drive with SFF-8639 connector. It does NOT work in SATA or SAS backplanes. The 15mm z-height does NOT fit standard 7mm SATA trays.
What is the condition of the Samsung PM1725a MZWLL800HEHP from T.E.S IT-SOLUTIONS?
The Samsung PM1725a 800GB MZWLL800HEHP-00003 sold by T.E.S IT-SOLUTIONS at tes-itsolutions.com is refurbished and lab-tested with NVMe SMART data verification to confirm drive health, remaining endurance, and full functionality before shipment.
Why T.E.S IT-SOLUTIONS
Every Samsung PM1725a sold by T.E.S IT-SOLUTIONS is lab-tested with NVMe SMART data verification to confirm drive health, remaining endurance and full functionality. T.E.S IT-SOLUTIONS provides technical consultation for mixed-use NVMe storage deployment, PM1725a-to-PM1725b in-place upgrade planning, and PCIe 4.0 migration planning toward the PM1735 / PM1743 generation. Orders ship within 1-3 business days with global delivery via DHL, FedEx and UPS.