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Green circuit board with black controller and silver label, M.2 2280 form factor

Lexar

Lexar LNM-990 2TB internal SSD

SKU CH-QWKV-6Q4M1

M.2 2280 NVMe drive with sequential reads up to 14,000MB/s and writes up to 10,000MB/s, plus 1500TBW endurance

  • Faster large-file transfers with 14,000MB/s sequential read
  • Quicker project saves with 10,000MB/s sequential write
  • Responsive multitasking from 2000K random read IOPS
  • Durable storage backed by 1500TBW endurance rating
  • Fits standard M.2 2280 slots for easy installation

Lexar LNM-990 2TB M.2 NVMe drive

This Lexar LNM-990 2TB internal SSD uses the M.2 2280 form factor and a PCIe Gen5x4 interface. It is built for desktop PCs and laptops that have a compatible M.2 slot keyed for NVMe. The drive targets users who need fast storage for operating systems, applications and large project files.

Thermals and power in normal use

The controller operates between 0°C and 70°C. The drive is rated to withstand 1500G shock and vibration from 10Hz to 2000Hz at 20G. No active cooling is included; the host system must provide adequate airflow across the M.2 slot to keep temperatures in range.

Deciding specification: 1500 TBW endurance

The 2TB model offers 1500 TBW total bytes written and 1.5 million hours MTBF. Sequential reads reach 14,000MB/s and writes reach 10,000MB/s, with random reads up to 2000K IOPs and writes up to 1400K IOPs. Buyers who need higher write endurance should consider the 4TB variant.

Highlights

  • Faster large-file transfers with 14,000MB/s sequential read
  • Quicker project saves with 10,000MB/s sequential write
  • Responsive multitasking from 2000K random read IOPS
  • Durable storage backed by 1500TBW endurance rating
  • Fits standard M.2 2280 slots for easy installation

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the M.2 2280 drive and what step is often missed?

Insert the M.2 2280 card into a PCIe Gen5x4 slot at a shallow angle, secure it with the motherboard screw, and enable NVMe in the BIOS so the OS can see the drive.

What maintenance or replacement will the 2TB model need based on its 1500 TBW rating?

The drive is rated for 1500 TBW; once that amount of data has been written the NAND may reach its endurance limit, so plan to replace the SSD when SMART reports the media‑wear indicator near 100 %.

What thermal limit appears first during sustained writes on this PCIe Gen5x4 SSD?

The controller will throttle once it hits the 70 °C operating‑temperature ceiling, reducing sequential write speeds below the 10 000 MB/s peak until the drive cools.

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