Lexar NM790 2 TB Internal SSD M.2 PCIe Gen 4×4 NVMe 2280 (LNM790X002T‑RNNNU)

Lexar NM790 2 TB internal SSD delivers blazing-fast PCIe Gen 4×4 NVMe 2.0 performance at a wallet-friendly price. Leveraging the Maxio MAP1602A controller combined with YMTC 232‑layer TLC NAND and Host Memory Buffer (HMB) 3.0 instead of onboard DRAM, this single‑sided M.2 2280 drive achieves up to 7,400 MB/s sequential read and 6,500 MB/s sequential write. Designed for gamers, creators, and PS5 users, it offers power efficiency, high endurance, and a sleek footprint that fits compact laptops and consoles seamlessly.

Product Features

Maxio MAP1602A Controller

A Gen 4×4 PCIe 4.0 NVMe 2.0–capable, DRAM‑less controller built on a 12 nm process with Agile ECC 3 to deliver high throughput and low latency.

YMTC 232‑Layer TLC NAND

High-density 3D NAND that balances cost and performance, allowing exceptional read/write speeds and efficiency for Gen 4 SSD workloads.

Host Memory Buffer (HMB) 3.0 + Dynamic SLC Cache

Uses system RAM for metadata storage, eliminating onboard DRAM, and a dynamic SLC cache boosts sustained performance on heavy writes.

Single‑Sided M.2 Form Factor

Compact design ideal for thin laptops, small form-factor PCs, and PS5 expansion—with and without heatsink versions.

Power‑Efficient Performance

Consumes up to 40% less power than typical DRAM‑enabled Gen 4 SSDs, making it ideal for battery‑sensitive devices.

PS5 Compatibility (Heatsink Variant)

Meets PlayStation 5 requirements out of the box with the included slim heatsink option, offering fast game loading and expansion storage.

Product Specifications

• Capacity: 2 TB (also available in 512 GB, 1 TB, 4 TB)
• Interface / Protocol: PCIe 4.0×4, NVMe 2.0
• Form Factor: M.2 2280, single‑sided
• Sequential Read Speeds: Up to 7,400 MB/s
• Sequential Write Speeds: Up to 6,500 MB/s
• Random Read IOPS: ~1,000K
• Random Write IOPS: ~900K
• Endurance (TBW): 1,500 TBW
• Warranty: 5‑year limited warranty
• DRAM: None (uses HMB 3.0)
• Flash Memory: 232‑layer YMTC TLC
• Controller: Maxio MAP1602A
• Heatsink: Optional (required for PS5 compatibility)

Additional Key Information

This SSD delivers near-top-tier Gen 4 speeds at a considerably lower cost than alternatives like Samsung 990 Pro or WD Black SN850X. Some users report occasional minor performance stutters during sustained heavy workloads due to the DRAM‑less design, but overall real‑world benchmarks show excellent real‑world transfers and gaming performance.

Tempered by a 5‑year warranty and high endurance, it’s an attractive option for users needing fast, efficient storage without premium pricing. Though not recommended as a primary OS drive in extremely memory‑limited systems, as a secondary drive or in gaming setups it shines.