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The Dell KWH83 is an 800GB Samsung PM1725A 2.5" Mixed Use SAS PCIe NVMe 3.0 x4/8 U.2 Solid State Drive (SSD).
This is a very high-performance, enterprise-grade SSD, and here's a breakdown of its key specifications:
- Dell KWH83: This is the specific Dell part number for this drive.
- 800GB: This is the storage capacity of the SSD.
- Samsung PM1725A: This indicates the specific model of the enterprise SSD from Samsung. The PM1725a series is known for being high-performance NVMe SSDs designed for data centers.
- 2.5": This refers to the physical form factor, meaning it's packaged to fit into 2.5-inch drive bays.
- Mixed Use (MU): This is a crucial designation for enterprise SSDs. Mixed Use drives are engineered to handle a balanced workload of both reads and writes. They offer higher endurance than "Read Intensive" (RI) drives but typically less than "Write Intensive" (WI) drives, providing a good balance of performance, endurance, and cost for a wide range of demanding enterprise applications like virtualization, database logging, and general-purpose servers.
- SAS PCIe NVMe 3.0 x4/8 U.2: This describes the advanced interface and protocol:
- NVMe (Non-Volatile Memory Express): This is a communication interface protocol specifically designed for SSDs that connects directly to the PCIe bus. It's vastly superior to older SATA or even SAS protocols for flash storage as it significantly reduces latency and allows for much higher throughput by taking full advantage of the parallel nature of NAND flash memory.
- PCIe 3.0 x4/8: This indicates that the drive connects via the PCI Express (PCIe) bus, version 3.0.
- "x4" means it utilizes 4 PCIe lanes, which is common for U.2 NVMe drives.
- "x8" implies that while the drive might typically use 4 lanes, the controller or system might support a wider configuration or that the drive's internal capabilities could scale up. For U.2, x4 is standard, but the controller might have x8 capability or be part of a broader PCIe architecture.
- U.2 (SFF-8639): This is a specific connector form factor for enterprise NVMe SSDs. It allows for hot-plugging and provides a robust connection, often found in servers where high-performance storage is needed.
- SAS PCIe: While it uses the U.2 connector (which traditionally supports SAS as well), the "PCIe NVMe" is the primary protocol here. The inclusion of "SAS" in some descriptions might be a legacy term or refer to the type of backplane it would connect to that also supports SAS drives, but the drive itself is fundamentally an NVMe device running over PCIe lanes, not a SAS protocol drive.
In summary, the Dell KWH83 is a highly advanced, enterprise-grade NVMe SSD from Samsung (PM1725A series). It's designed for mixed-use workloads in data centers, connecting via a PCIe 3.0 x4/8 interface through a U.2 connector, offering exceptionally high performance and low latency for demanding applications in Dell server environments.
Warranty: 60day