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Lexar NM990

LexarSSD

NM990

Released July 2025.3Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Launch news dated 15 July 2025. The setup sheet gives availability June 2025 and Guru3D covered the series on 13 June 2025. ComputerBase reported the drive already in retail on 16 July 2025 Last checked 14 October 2026.

Interface
PCIe NVMe
Form factor
M.2 2280
Capacity
1 TB, 2 TB, 4 TB
Read speed
14,000MB/s

25 of 63 fields known.

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At a glance

All specs

SourceCalculated

General

Series
NM9901Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Maker line name is NM990
Model numbers
LNM990X001T-RNNNG, LNM990X001T-RNNNU, LNM990X002T-RNNNG, LNM990X002T-RNNNU, LNM990X004T-RNNNG, LNM990X004T-RNNNU1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Part number table, region Global: LNM990X001T-RNNNG, LNM990X002T-RNNNG and LNM990X004T-RNNNG. The 2TB number is on this page, not on the retailer listings. The RNNNU North America codes are in the setup sheet2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Ordering information: Global LNM990X001T-RNNNG, LNM990X002T-RNNNG, LNM990X004T-RNNNG and North America LNM990X001T-RNNNU, LNM990X002T-RNNNU, LNM990X004T-RNNNU
GTIN / EAN
843367136841, 843367136872, 843367136858, 843367136889, 843367136865, 8433671368962Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Single UPC column. Global: 843367136841 (1TB), 843367136858 (2TB), 843367136865 (4TB). North America: 843367136872, 843367136889, 843367136896. The 10-pack UPCs are not stored
Announced
Not available
Status
Available1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Listed on the Lexar page and on retailers
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Form factor
M.2 22801Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Form factor row reads M.2 22802Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
Capacity
1 TB, 2 TB, 4 TB1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Capacity row reads 1TB, 2TB, 4TB. Footnote: 1GB equals 1 billion bytes. ComputerBase lists 1,024, 2,048 and 4,096 GB, which Lexar does not publish, so decimal values are stored2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Interface

Interface
PCIe NVMe1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Interface row reads PCIe Gen5x4. The page gives no NVMe version2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
PCIe generation
51Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026
PCIe lanes
41Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026
NVMe version
Not available
Detachable cable
Not available

Hardware

Controller
Maxio MAP1806A4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026ComputerBase reads the NM990 uses the Maxio MAP1806A 8-channel controller with Micron TLC NAND. The maker does not name the controller5Press articlebenchmark.pl/aktualnosci/lexar-nm990-tanie-dyski-ssd-pcie-5.htmlRead 14 October 2026Reads an 8-channel Maxiotek MAP1806A controller, with a photo credited to Tweakers6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 20262TB review names the Maxiotek MAP1806A, 8 NAND channels, hidden under the sticker
Flash type
TLC4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026Table reads TLC (3D) NAND. The flash maker is read as Micron by ComputerBase and as Longsys by allround-pc, so the flash row is not stored6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026Review says the flash runs in TLC mode with an SLC write cache. It says the flash comes from Longsys and Lexar does not name the generation
Flash memory
Not available
Flash layers
Not available
DRAM cache
None, uses host memory (HMB)3Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Key features read HMB and SLC Dynamic Cache. The release gives no DRAM chip4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026Table reads no DRAM cache5Press articlebenchmark.pl/aktualnosci/lexar-nm990-tanie-dyski-ssd-pcie-5.htmlRead 14 October 2026Reads the design has no DRAM cache, unlike the NM1090 models6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026Review text says DRAM-less with Host Memory Buffer. Its spec box lists 4GB LPDDR4, which disagrees with its own text, ComputerBase, Benchmark.pl and Lexar, and is not used
DRAM cache size
Not available
Component sides
Not available

Performance

Sequential read (claimed)
14,000MB/s1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Speed row, up to 14,000 MB/s read at 1TB, 2TB and 4TB. Based on internal testing, host not named2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Same speed table as the product page. Setup sheet availability date is June 2025
Sequential write (claimed)
10,000MB/s1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 7,500 MB/s (1TB), 10,000 MB/s (2TB) and 11,000 MB/s (4TB)2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
Random 4K read (claimed)
2,000,000IOPS1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 1600K (1TB), 2000K (2TB) and 2000K (4TB) IOPS. Queue depth is not stated2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
Random 4K write (claimed)
1,400,000IOPS1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 1000K (1TB), 1400K (2TB) and 1500K (4TB) IOPS2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Endurance and reliability

Endurance (TBW)
1,500TB1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026TBW row: 1TB 750TBW, 2TB 1500TBW, 4TB 3000TBW2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 20263Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Rated capacity of up to 3000 TBW (4TB)
MTBF or MTTF (claimed)
1,500,000h1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026MTBF row reads 1,500,000 hours. Published as MTBF2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
Operating temperature
Min0Max70°C1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 20260 to 70 C. The storage range of -40 to 85 C is not stored2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Power

We could not find any of these 6 fields. Show them
Power while reading (claimed)
Not available
Power while writing (claimed)
Not available
Max power consumption (claimed)
Not available
Average power in light use (claimed)
Not available
Idle power (claimed)
Not available
Sleep power (claimed)
Not available

Measured

We could not find any of these 9 fields. Show them
Sequential read (measured)
Not available
Sequential write (measured)
Not available
Random 4K read at queue depth 1 (measured)
Not available
Random 4K write at queue depth 1 (measured)
Not available
Write cache size (measured)
Not available
Write speed after the cache (measured)
Not available
3DMark Storage Benchmark
Not available
Highest temperature under load (measured)
Not available
Idle power (measured)
Not available

Cooling and build

Heatsink
Without heatsink1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026The page lists no heatsink version6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026All models ship without a heatsink. The review's spec box lists 3.6 mm thickness, which disagrees with Lexar's 2.45 mm, and is not used
RGB lighting
Not available
Dust and water rating
Not available
Drop test height
Not available

Security and software

Security
Not available
Software
Lexar DiskMaster2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Lexar DiskMaster SSD Management tool for firmware updates, drive management and health monitoring3Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Lexar DiskMaster SSD Management tool

Compatibility

We could not find any of these 1 fields. Show them
Platforms
Not available

Dimensions and weight

Front and side, drawn to scale.

Dimensions
Length80Width22Height2.45mm(3.1 × 0.9 × 0.1 in)1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Dimension row reads 80 x 22 x 2.45 mm (3.15 x 0.87 x 0.10 in). The row label says W x L x H, the values are length 80 and width 222Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 202680 x 22 x 2.45 mm (L x W x H)
Weight
6g(0.2 oz)1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 20266 g / 0.013 lbs2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Unit weight 6 g

In the box

We could not find any of these 2 fields. Show them
In the box
Not available
Cables included
Not available

Warranty

Manufacturer warranty (source market)
5years1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Five-year limited warranty2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Five-year limited warranty

Compare with

Pick a SSD to see both side by side. Differences are marked yellow.

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Variants

Each variant lists only what differs from the specs above.

Model numberGTINModel numbersGTIN / EANCapacitySequential read (claimed)Sequential write (claimed)Random 4K read (claimed)Random 4K write (claimed)Endurance (TBW)Heatsink
LNM990X001T-RNNNG843367136841LNM990X001T-RNNNG, LNM990X001T-RNNNU843367136841, 8433671368721 TB14,000 MB/s7,500 MB/s1,600,000 IOPS1,000,000 IOPS750 TBWithout heatsink
LNM990X002T-RNNNG843367136858LNM990X002T-RNNNG, LNM990X002T-RNNNU843367136858, 8433671368892 TB14,000 MB/s10,000 MB/s2,000,000 IOPS1,400,000 IOPS1,500 TBWithout heatsink
LNM990X004T-RNNNG843367136865LNM990X004T-RNNNG, LNM990X004T-RNNNU843367136865, 8433671368964 TB14,000 MB/s11,000 MB/s2,000,000 IOPS1,500,000 IOPS3,000 TBWithout heatsink

Sources

We read 7 sources for this SSD. The numbers match the markers in the sheet.

  1. Read 14 October 2026Backs 21 fields
  2. Read 14 October 2026Backs 17 fields
  3. Read 14 October 2026Backs 4 fields
  4. Read 14 October 2026Backs 4 fields
  5. Read 14 October 2026Backs 2 fields
  6. Read 14 October 2026Backs 4 fields
  7. Read 14 October 2026Backs 1 field

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