Technical Snapshot

The Lexar NQ790 4TB NVMe SSD is a high-performance M.2 2230 solid state drive built with QLC flash and a PCIe Gen4 x4 NVMe interface. It delivers sequential read speeds Up to 7,000 MB/s and sequential write speeds Up to 6,000 MB/s. Random I/O reaches 800,000 read IOPS and 800,000 write IOPS. The drive offers 4TB of storage, an endurance rating of 2,400 TBW, a 1,500,000 hours MTBF, backed by a 5-year limited warranty. Part of Lexar's NQ790 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 2230 slot, PCIe Gen4 x4 NVMe-capable motherboard
Category: Internal NVMe SSD — Lexar NQ790

Lexar SSD

Lexar NQ790

NQ790 4TB NVMe SSD

Name: Lexar NQ790 4TB NVMe SSD
Brand: Lexar
SKU: LNQ790X004T-RNNNG

PCIe Gen4 x4 NVMe · M.2 2230 · QLC · Up to 7,000 MB/s Read

Capacity 4TB

Seq Read Up to 7,000 MB/s

Seq Write Up to 6,000 MB/s

Endurance 2,400 TBW

MPNLNQ790X004T-RNNNG

EAN843367132232

CategorySolid State Drives

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Performance & Interface

Form FactorM.2 2230

InterfacePCIe Gen4 x4 NVMe

Sequential ReadUp to 7,000 MB/s

Sequential WriteUp to 6,000 MB/s

Random Read IOPS800,000

Random Write IOPS800,000

NAND TypeQLC

Endurance (TBW)2,400 TBW

MTBF1,500,000 hours

Warranty5-year limited

Full Specifications

Data sourced from Lexar product specifications

Storage
Product Line	NQ790
Capacity	4TB
Form Factor	M.2 2230
Interface	PCIe Gen4 x4 NVMe
NAND Type	QLC
Performance
Sequential Read	Up to 7,000 MB/s
Sequential Write	Up to 6,000 MB/s
Random Read IOPS	800,000
Random Write IOPS	800,000
Endurance & Reliability
Endurance (TBW)	2,400 TBW
MTBF	1,500,000 hours
Warranty	5-year limited
Product
Brand	Lexar
MPN	LNQ790X004T-RNNNG
EAN	843367132232
Physical
Weight	0.050 kg
Package Dimensions	16.5 x 10.6 x 1.6 cm

Support & Downloads

Lexar NQ790 4TB NVMe SSD Firmware UpdateLatest firmware · Check Lexar support

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Lexar NQ790 4TB NVMe SSD DatasheetPDF · Technical specifications

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Frequently Asked Questions

Is the Lexar NQ790 4TB NVMe compatible with my motherboard?

The Lexar NQ790 4TB NVMe SSD uses a M.2 2230 form factor with PCIe Gen4 x4 NVMe interface. It is compatible with any motherboard that has a matching M.2 2230 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 NQ790 4TB NVMe in a laptop or Steam Deck?

Yes, the Lexar NQ790 4TB NVMe SSD uses the M.2 2230 (30mm) compact form factor, which is compatible with laptops, the Steam Deck, Microsoft Surface devices, and other compact PCs that require shorter M.2 drives.

What is the endurance rating of the Lexar NQ790 4TB NVMe?

The Lexar NQ790 4TB NVMe SSD is rated for 2,400 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 NQ790 4TB NVMe?

The Lexar NQ790 4TB NVMe SSD delivers Up to 7,000 MB/s sequential read and Up to 6,000 MB/s sequential write speeds. Random I/O performance: 800,000 read IOPS and 800,000 write IOPS.

What type of NAND does the Lexar NQ790 4TB NVMe use?

The Lexar NQ790 4TB NVMe SSD uses QLC flash memory with 4TB storage capacity. QLC NAND provides excellent value for large-capacity storage.

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MPN: LNQ790X004T-RNNNG
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