SSD M.2 PCIe 4.0 Lexar NQ790 4TB

Lexar NM790 4TB – High-Speed PCIe 4.0 NVMe Storage

The Lexar NM790 4TB is a high-performance PCIe 4.0 NVMe SSD designed for demanding gaming PCs, professional systems and high-speed desktop storage. With a substantial 4TB capacity, it provides enough space for large game libraries, applications, media projects and extensive personal files while delivering the performance expected from a modern Gen4 NVMe drive. The SSD uses the compact M.2 2280 form factor and a PCIe Gen 4x4 interface. With sequential read speeds of up to 7,400 MB/s and sequential write speeds of up to 6,500 MB/s, the NM790 is built to provide fast data transfers and responsive storage performance.

Up to 7,400 MB/s Read and 6,500 MB/s Write

The Lexar NM790 4TB delivers sequential read speeds of up to 7,400 MB/s and sequential write speeds of up to 6,500 MB/s. Its 4TB version can also reach up to 900,000 IOPS for random read and random write operations, providing strong responsiveness across demanding storage workloads. These capabilities make the drive suitable for large file transfers, game installations, application loading and professional workloads involving substantial amounts of data. Actual performance can vary depending on the host system, workload and other factors, but a compatible PCIe 4.0 platform allows the NM790 to make full use of its high-speed interface.

4TB of High-Speed Storage

With 4TB of capacity, the NM790 offers a large amount of fast storage for users who need more than a typical 1TB or 2TB system drive. The capacity is particularly useful for gaming PCs with large game libraries, creative systems storing high-resolution media and workstations handling large project files. Lexar uses 3D TLC NAND in the NM790, providing a balance of performance, capacity and endurance. The 4TB model is rated for up to 3,000 TBW, giving it a substantial total data-write endurance rating for a high-capacity consumer NVMe SSD.

M.2 2280 PCIe Gen 4x4 Interface

The NM790 uses the widely adopted M.2 2280 form factor and connects through PCIe Gen 4x4. The standard 4TB model measures approximately 80 × 22 × 2.45mm and weighs around 6g, allowing it to fit directly into compatible motherboard M.2 slots without the need for SATA data or power cables. The drive supports the NVMe protocol and is designed for modern PCIe 4.0 systems. It can also be used in compatible PCIe generations, although available performance will depend on the platform and M.2 slot being used.

Efficient Performance with HMB and Dynamic SLC Cache

The Lexar NM790 uses Host Memory Buffer 3.0 and Dynamic SLC caching to help maintain responsive storage performance during demanding workloads. HMB allows the SSD to make use of a portion of the host system's memory for selected storage-management functions, while Dynamic SLC caching helps accelerate write operations. Lexar also designed the NM790 with power efficiency in mind, making it suitable for systems where high performance and efficient operation are both important. The drive operates within a specified temperature range of 0°C to 70°C, with an MTBF rating of 1.5 million hours.

4TB Gen4 Storage for Gaming and Professional PCs

The Lexar NM790 4TB combines substantial storage capacity with high-end PCIe 4.0 NVMe performance. With up to 7,400 MB/s sequential read, 6,500 MB/s sequential write, 900,000 random read/write IOPS and 3,000 TBW endurance, it is designed for systems where fast and spacious storage is important. Its M.2 2280 format makes installation straightforward on compatible motherboards, while the 4TB capacity provides room for demanding game libraries, applications and large files. The NM790 is therefore well suited to high-performance gaming PCs, content-creation systems and desktop workstations requiring fast, high-capacity storage.