Overview

Samsung PM991A 256GB NVMe SSD for M.2 2280 Systems
The Samsung PM991A 256GB M.2 NVMe solid state drive is designed for compact, high performance computing environments where fast storage access and efficient power use are important. Built on the PCIe 3.0 x4 interface, it delivers responsive system performance for everyday computing, boot drives, and lightweight workstation tasks. Its M.2 2280 form factor makes it suitable for laptops, ultrabooks, and compatible desktop motherboards that support NVMe storage. With strong sequential read and write capabilities, it helps reduce loading times and improves overall system responsiveness.

Description

The Samsung PM991A 256GB SSD combines NVMe 1.3 technology with Samsung's OEM storage architecture to deliver stable and efficient performance in a compact design. It is intended for system integrators and upgrades where reliability, speed, and space efficiency are key requirements. The drive supports high-speed PCIe Gen3 communication, enabling faster data transfer compared to traditional SATA drives. Its low-profile M.2 2280 layout ensures broad compatibility with modern thin devices, making it a practical choice for system upgrades or replacement storage solutions.

Features

Storage and Interface Details
This model is built around a PCI-Express 3.0 x4 NVMe 1.3 interface, ensuring efficient data handling and reduced latency during read and write operations. It is designed as an internal solid state drive for direct motherboard installation.

Key technical details include:

• Storage capacity: 256GB
• Form factor: M.2 2280
• Interface: PCIe 3.0 x4 NVMe 1.3
• Model identifier: MZ-VLQ256B
• Series: PM991a
• Firmware version: HPS1NFAV

The drive is engineered for consistent throughput performance, with up to 3100 MB/s read speeds and up to 1300 MB/s write speeds depending on system configuration and workload conditions.

Performance and Compatibility Notes
The Samsung PM991A series is commonly used in OEM systems and is optimized for balanced power efficiency and storage performance. It is suitable for operating system installation, application storage, and general computing workloads.

Compatible part references include:

• MZVLQ256HBJD-00BH1
• MZVLQ256HBJD-00BKN
• M17197-001

Its M.2 2280 design ensures compatibility with a wide range of laptops and desktops that support NVMe storage expansion, particularly systems designed for PCIe Gen3 lanes.

Product Identification and Technical Reference
For procurement and inventory tracking, this drive is identified under multiple designations used across OEM channels and distribution systems. The primary model is MZ-VLQ256B, with the full series classification as PM991a.

• SKU reference: Samsung_PM991A256GB2280
• Series family: PM991a
• Storage type: Internal NVMe solid state drive

This combination of identifiers ensures accurate matching for replacement, bulk system integration, or hardware upgrade requirements.

Specifications