The Lexar NQ780 2TB is Lexar’s mid-range M.2 2280 NVMe SSD for PCIe Gen4 x4 slots, part number LNQ780X002T-RNNNG (Global), rated by Lexar at up to 7,000 MB/s sequential read and up to 5,000 MB/s sequential write. It pairs an 8-channel Gen 4 controller with Host Memory Buffer (HMB) and SLC caching, carries a 1,200 TBW endurance rating, and is in stock in the UAE at Totot.
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Why pick the Lexar NQ780 2TB
Two terabytes is the capacity most PC builders and laptop owners actually need today: enough for Windows, a dozen large games, a photo archive and active video projects without juggling drives. The NQ780 range is Lexar’s value line for Gen4, and the 2TB model is where the range reaches its full 7,000 MB/s read figure. Lexar’s own spec sheet lists the 1TB version at up to 6,000 MB/s read and 2,500 MB/s write, so moving up to 2TB doubles the space and also doubles the rated write speed.
Lexar describes the Lexar NQ780 2TB as made to keep games running smoothly and work projects on time, with Intelligent Power Control that adjusts power use to the workload. In short, it is a fast, single-sided drive that suits a gaming desktop as well as a thin notebook.
Speed of the Lexar NQ780 2TB: what the numbers mean
Lexar rates the Lexar NQ780 2TB at up to 7,000 MB/s sequential read and up to 5,000 MB/s sequential write. Lexar states that these speeds are based on internal testing and that actual performance may vary, so treat them as best-case figures on a PCIe 4.0 x4 slot. Lexar does not publish random IOPS figures or the test system for this model.
Sequential speed is what you feel when you copy large files, install games or load big project folders. The drive uses an SLC cache, a fast buffer area that absorbs incoming writes; Lexar says HMB and SLC cache enable faster game loads and transfers and reduce latency. Lexar does not publish the cache size or the speed after the cache is full, so very long continuous copies can run slower than the headline write figure.
8-channel controller, HMB and SLC cache
The heart of the drive is a high-quality 8-channel Gen 4 controller. Lexar says it delivers strong maximum performance and better sustained write performance than simpler designs. Instead of an onboard DRAM chip, the NQ780 uses Host Memory Buffer: it borrows a small slice of your system memory to hold its mapping tables. Lexar does not list a DRAM cache for this drive, and it does not publish the NAND type or the controller maker.
For gaming, office work, photo editing and general use, an HMB design is the normal choice in this price class. Where it matters is heavy, server-style workloads that hammer the drive with small random writes all day; those users are better served by a drive with onboard DRAM. For everyone else, the Lexar NQ780 2TB gives Gen4 speed at a sensible cost per terabyte.
Laptop-friendly single-sided design
All the chips sit on one side of the board, and the drive measures 80 x 22 x 2.45 mm including the front label, with a weight of 6 g. That matters in thin laptops and mini PCs, where the M.2 slot often leaves no room for components on the underside. Intelligent Power Control manages power draw to suit the workload, which Lexar says makes the NQ780 a good option for laptops too.
Lexar lists an operating range of 0 to 70°C, storage from -40 to 85°C, shock resistance of 1,500 G for 0.5 ms (half sine wave) and vibration resistance of 10 to 2,000 Hz at 20 G. The drive ships bare with its label and Lexar lists no heatsink for the NQ780; in a desktop, fit the Lexar NQ780 2TB under your motherboard’s M.2 cover if it has one.
Endurance and drive management
Lexar rates the Lexar NQ780 2TB for 1,200 TBW (terabytes written), with an MTBF of 1,500,000 hours. For a sense of scale, writing 100 GB every single day would take more than 30 years to reach 1,200 TB, far beyond what a home or office PC usually writes.
The drive works with the Lexar DiskMaster SSD management tool. Lexar says DiskMaster lets you update firmware to improve reliability, manage the data on the drive, securely erase private files and monitor drive health so potential issues are spotted early. Lexar also notes that all its products are tested in the Lexar Quality Labs for performance, compatibility and reliability.
Installing the Lexar NQ780 2TB
Shut down the PC and unplug it, remove the M.2 screw or latch, insert the drive at a slight angle into an M.2 2280 slot that supports NVMe, press it down and secure it. In Windows, open Disk Management and initialise the new disk as GPT, or clone your old drive first if you want to keep your current system. Usable space is lower than 2TB because Lexar counts 1 GB as one billion bytes and formatting uses some space.
Who This Is Not For
This drive is not for SATA-only M.2 slots; it needs an NVMe-capable M.2 slot. It is not a PCIe 5.0 drive, so builders chasing Gen5 speeds should look elsewhere. It has no onboard DRAM cache, which matters for constant heavy random-write workloads. Lexar does not list a heatsink, and Lexar’s NQ780 product page does not state PlayStation 5 compatibility, so we do not claim it; PS5 owners should check Sony’s M.2 requirements first. Lexar also does not publish the NAND type, IOPS or post-cache write speed.
Ordering in the UAE
Totot delivers the Lexar NQ780 2TB across the UAE within up to 3 business days, with free delivery on orders from AED 300. If the drive is defective or not what you ordered, you can return it within 14 days, and any shipping damage should be reported within 48 hours of delivery. You can pay by cash on delivery, Tabby or Tamara.
Browse more Storage Devices at Totot, or see the official Lexar page for full product details.
Technical Specifications
- Product: Lexar NQ780 M.2 2280 PCIe Gen 4×4 NVMe SSD
- Capacity: 2TB (1GB = 1 billion bytes; usable capacity is lower)
- Part number: LNQ780X002T-RNNNG (Global)
- Form factor: M.2 2280, single-sided, no heatsink listed
- Interface: PCIe Gen 4×4, NVMe
- Sequential read / write: Up to 7,000 MB/s / up to 5,000 MB/s (Lexar internal testing; actual performance may vary)
- Controller / cache: 8-channel Gen 4 controller / HMB and SLC cache (no DRAM cache listed)
- Endurance: 1,200 TBW
- MTBF: 1,500,000 hours
- Operating temperature: 0 to 70°C
- Storage temperature: -40 to 85°C
- Shock: 1,500 G, 0.5 ms, half sine wave
- Vibration: 10 to 2,000 Hz, 1.5 mm, 20 G, 1 oct/min, 30 min per axis
- Dimensions: 80 x 22 x 2.45 mm (with front label)
- Weight: 6 g
- Software: Lexar DiskMaster SSD management tool
- Warranty: 1-year warranty from Totot
FAQ
How fast is the Lexar NQ780 2TB?
7,000 MB/s is Lexar’s rated maximum sequential read and 5,000 MB/s the maximum sequential write, based on Lexar’s internal testing; actual performance may vary.
Does the Lexar NQ780 2TB have DRAM?
No. Lexar lists Host Memory Buffer (HMB) and SLC cache technologies for the NQ780 and does not list an onboard DRAM cache.
Is the Lexar NQ780 2TB faster than the 1TB version?
Yes. Lexar rates the 1TB model at up to 6,000 MB/s read and 2,500 MB/s write, against up to 7,000 MB/s read and 5,000 MB/s write for the 2TB.
What is the TBW rating of the Lexar NQ780 2TB?
1,200 TBW, with an MTBF of 1,500,000 hours.
Does the Lexar NQ780 2TB come with a heatsink?
No. Lexar lists the NQ780 as a bare M.2 2280 drive measuring 2.45 mm thick with its label, and lists no heatsink.
Will the Lexar NQ780 2TB fit my laptop?
Yes, if the laptop has an M.2 2280 slot that supports NVMe. The single-sided design suits thin laptops; slots that only accept SATA M.2 drives will not work.
Is the Lexar NQ780 2TB PS5 compatible?
No official confirmation: Lexar’s NQ780 product pages and spec sheet do not list PlayStation 5 compatibility, and the drive has no heatsink, so check Sony’s M.2 requirements first.
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