Technical Snapshot

The Lexar NM790 4TB NVMe SSD is a high-performance M.2 2280 solid state drive built with TLC flash and a PCIe Gen4 x4 NVMe interface. It delivers sequential read speeds Up to 7,400 MB/s and sequential write speeds Up to 6,500 MB/s. Random I/O reaches 1,000,000 read IOPS and 900,000 write IOPS. The drive offers 4TB of storage, an endurance rating of 3,000 TBW, a 1,500,000 hours MTBF, backed by a 5-year limited warranty. Part of Lexar's NM790 product line, this drive targets enthusiast gamers, content creators, and workstation builders requiring high-bandwidth NVMe storage.

Use Case: Gaming, content creation, high-bandwidth NVMe storage
Compatibility: M.2 2280 slot, PCIe Gen4 x4 NVMe-capable motherboard
Category: Internal NVMe SSD — Lexar NM790

Lexar SSD

Lexar NM790

NM790 4TB NVMe SSD

Name: Lexar NM790 4TB NVMe SSD
Brand: Lexar
SKU: LNM790X004T-RNNNG

PCIe Gen4 x4 NVMe · M.2 2280 · TLC · Up to 7,400 MB/s Read

Capacity 4TB

Seq Read Up to 7,400 MB/s

Seq Write Up to 6,500 MB/s

Endurance 3,000 TBW

MPNLNM790X004T-RNNNG

EAN843367131464

CategorySolid State Drives

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Performance & Interface

Form FactorM.2 2280

InterfacePCIe Gen4 x4 NVMe

Sequential ReadUp to 7,400 MB/s

Sequential WriteUp to 6,500 MB/s

Random Read IOPS1,000,000

Random Write IOPS900,000

NAND TypeTLC

Endurance (TBW)3,000 TBW

MTBF1,500,000 hours

Warranty5-year limited

Full Specifications

Data sourced from Lexar product specifications

Storage
Product Line	NM790
Capacity	4TB
Form Factor	M.2 2280
Interface	PCIe Gen4 x4 NVMe
NAND Type	TLC
Performance
Sequential Read	Up to 7,400 MB/s
Sequential Write	Up to 6,500 MB/s
Random Read IOPS	1,000,000
Random Write IOPS	900,000
Endurance & Reliability
Endurance (TBW)	3,000 TBW
MTBF	1,500,000 hours
Warranty	5-year limited
Product
Brand	Lexar
MPN	LNM790X004T-RNNNG
EAN	843367131464
Physical
Weight	0.049 kg
Package Dimensions	11.0 x 2.0 x 17.0 cm

Support & Downloads

Lexar NM790 4TB NVMe SSD Firmware UpdateLatest firmware · Check Lexar support

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Lexar NM790 4TB NVMe SSD DatasheetPDF · Technical specifications

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Frequently Asked Questions

Is the Lexar NM790 4TB NVMe compatible with my motherboard?

The Lexar NM790 4TB NVMe SSD uses a M.2 2280 form factor with PCIe Gen4 x4 NVMe interface. It is compatible with any motherboard that has a matching M.2 2280 slot. This includes AMD AM5/AM4 and Intel LGA 1851/LGA 1700 platforms. PCIe is backward-compatible, so older PCIe generation slots will work at reduced bandwidth.

Can I use the Lexar NM790 4TB NVMe in a laptop?

Yes, if your laptop has an M.2 2280 NVMe slot. Some laptops use shorter M.2 2230 or M.2 2242 form factors — the Lexar NM790 4TB NVMe SSD requires the standard 2280 (80mm) length slot.

What is the endurance rating of the Lexar NM790 4TB NVMe?

The Lexar NM790 4TB NVMe SSD is rated for 3,000 TBW with a 1,500,000 hours MTBF, backed by a 5-year limited warranty. At typical consumer usage of ~50 GB/day, this provides years of reliable operation.

How fast is the Lexar NM790 4TB NVMe?

The Lexar NM790 4TB NVMe SSD delivers Up to 7,400 MB/s sequential read and Up to 6,500 MB/s sequential write speeds. Random I/O performance: 1,000,000 read IOPS and 900,000 write IOPS.

What type of NAND does the Lexar NM790 4TB NVMe use?

The Lexar NM790 4TB NVMe SSD uses TLC flash memory with 4TB storage capacity. TLC NAND offers a good balance of performance, endurance, and cost.

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MPN: LNM790X004T-RNNNG
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