Samsung 512GB PM991 NVMe

PRODUCT SPECIFICATIONS:

The SAMSUNG MZALQ512HALU (also known as the Samsung PM991) is a 512GB M.2 2242 NVMe SSD. Primarily designed for compact laptops, Ultrabooks, and Mini PCs, it utilizes a PCIe 3.0 x4 interface to deliver entry-to-mid-tier storage performance.

Key Specifications

Form Factor: M.2 2242 (42mm length). Note: It can be used in 2260 or 2280 slots with an appropriate adapter.
Interface: NVMe PCIe Gen 3.0 x4 (backward compatible but operates at Gen 3 speeds)
Capacity: 512GB
Average Read Speed: ~1393 MB/s
Average Write Speed: ~835 MB/s

Practical Uses

Due to its unique 2242 sizing, it is a highly sought-after drive for specific upgrades on compact devices like the Lenovo ThinkPad and Dell Latitude, as well as handheld gaming consoles like the Steam Deck (with a specialized 2242-to-2230 adapter).For a visual breakdown of how the PM991 performs compared to other popular Samsung drives like the 970 EVO Plus and SSD 980 in various benchmarks: