Samsung PM991a 512GB M.2 2230 NVMe PCIe Gen3 x4 Internal SSD – Model MZ-9LQ512C The Samsung PM991a MZ-9LQ512C is a compact, high-performance M.2 2230 NVMe SSD designed for modern ultrabooks, tablets, handheld gaming devices, and mini PCs. Built on PCIe Gen3 x4 NVMe technology, it delivers fast boot times, smooth application performance, and reliable long-term endurance.
With 512GB of storage, this SSD provides ample space for operating systems, productivity software, and gaming libraries. Its small 2230 form factor makes it compatible with devices such as Microsoft Surface laptops, Steam Deck, ROG Ally (2230-modded), and other compact systems requiring a short M.2 drive.
Engineered by Samsung, the PM991a series is known for excellent thermal efficiency, low power consumption, and stable sustained performance—ideal for both everyday users and professionals who need dependable speed in a compact footprint.
High-Performance NVMe Storage: PCIe Gen3 x4 interface delivers fast read/write speeds for quick boot times and responsive system performance.
Compact M.2 2230 Form Factor: Perfect for ultrabooks, tablets, mini PCs, Steam Deck, and Surface devices requiring short 30mm SSDs.
512GB Capacity: Provides reliable storage for OS, applications, and large files without compromising speed.
Samsung PM991a Series: Known for excellent efficiency, low heat output, and stable long-term performance.
Enhanced Reliability: Built with Samsung's advanced NAND technology for durability and consistent data integrity.
Plug-and-Play Upgrade: Easy installation for expanding or replacing internal storage in compatible devices.