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Lexar NM790 1TB M.2 2280 internal SSD black circuit board no heatsink

Lexar

Lexar LNM790X001T-RNNNU 1TB internal SSD

SKU CH-785B-REV0P MPN LNM790X001T-RNNNU

M.2 2280 internal SSD with PCIe 4.0 x4 interface delivering up to 7400 MB/s read and 6500 MB/s write speeds

  • Total capacity1 TB
  • Sequential read speedUp to 7,400 MB/s
  • Sequential write speedUp to 6,500 MB/s
  • Interface typePCI-Express 4.0 x4
  • Form factorM.2 2280
  • Product typeInternal Solid State Drive (SSD)

Capacity 1TB

  • Up to 7400 MB/s sequential read accelerates game loads
  • Up to 6500 MB/s sequential write speeds large file saves
  • PCIe 4.0 x4 interface delivers high bandwidth for demanding workloads
  • HMB 3.0 uses host DRAM to boost transfer responsiveness
  • Single-sided M.2 2280 design fits slim laptops and PS5

Lexar NM790 1TB PCIe 4.0 NVMe SSD

The Lexar NM790 is a 1TB internal solid state drive built for gamers, professionals and creators who need fast storage. It uses the M.2 2280 form factor and connects through a PCI-Express 4.0 x4 interface with NVMe protocol. Sequential read speeds reach up to 7400 MBps and write speeds up to 6500 MBps. The drive is also validated for PlayStation 5 expansion.

Single-sided M.2 2280 installation

The single-sided M.2 2280 design fits directly into compatible motherboard slots or laptop bays without extra cables. No heatsink is included, so thermal performance depends on the host device’s own cooling solution. Host Memory Buffer 3.0 enables the system DRAM to assist caching for smoother transfers. Ensure the motherboard or laptop BIOS supports PCIe 4.0 NVMe drives to avoid detection issues.

1TB capacity for games and workloads

One terabyte provides room for large game libraries, creative project files and operating system drives. The 1000 TBW endurance rating supports heavy daily write workloads over the drive’s lifetime. Power draw is up to 40 percent lower than DRAM-cache Gen 4 SSDs, helping laptop battery life. When the SLC cache fills during sustained writes, speeds will drop to the native TLC rate.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $148.99
Cheaper than about 58% of the 1,994 comparable items (median $180.49).
Total capacity 1 TB
Typical for this category: the median of 1,368 items is 1 TB.
Sequential read speed Up to 7,400 MB/s
Higher than about 90% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $148.99 per TB
Cheaper than about 58% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameLexar
Product linenm790
Model nameLNM790 × 001T-RNNNU
Part numberLNM790 × 001T-RNNNU
Total capacity1 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 7,400 MB/s
Sequential write speedUp to 6,500 MB/s
Ports & slots
Interface typePCI-Express 4.0 x4
Size & build
Form factorM.2 2280
Heat sinkWithout HeatSink
Shipping weight0.05 kg
Package size165 × 102 × 15 mm

Questions about this item

Will this M.2 2280 drive fit in my PlayStation 5 without an extra heatsink?

The drive is confirmed compatible with PlayStation 5. It is a single-sided M.2 2280 module without a heatsink, so you will need to add a compatible heatsink before installing it in the console.

Does the 1 TB capacity provide enough endurance for heavy gaming and creative workloads?

The drive is rated for 1000 TBW, which represents a very high total bytes written figure suitable for intensive gaming, video editing and other demanding tasks.

My laptop only has a PCIe 3.0 slot — will I still see a speed benefit over my old drive?

Yes. The drive runs on PCIe 4.0 x4 but is backward compatible with PCIe 3.0 slots, where it will still deliver significantly higher sequential speeds than a typical Gen 3 SSD.

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