How to get $240 off the Lexar NM790 4TB SSD: The deal that changes everything

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Games are massive. They’re getting bigger every single update. And let’s be honest, your storage is probably already full.

That’s why the Lexar NM790 4TB deal at Amazon matters.

Right now, you can snag this specific internal drive for $509.99 down from $749.9. That’s $240 knocked off the price. A 32% drop isn’t a rounding error. It’s actual savings. You have to move fast though. These discounts on high-capacity NVMe drives vanish quicker than a save file if you forget to save.

Why the Lexar 4TB capacity is a game changer

You need this much space. I’m not saying it to be annoying. Modern AAA titles routinely eat up 150GB each. With a library of just ten or twelve big games, you’re looking at over a terabyte of used space. Add in some video projects, a few large applications, and you hit the wall fast.

Four terabytes stops that anxiety cold. You can keep your entire library installed and ready to launch without constantly uninstalling and reinstalling things just to play the next one.

The specs back up the storage hype. This drive pushes sequential read speeds up to 7,400 megabytes per second. Write speeds sit around 6,500 megabytes per second for heavy lifting. For context, that means loading screens are shorter and transferring massive files feels like instant gratification.

Speed and efficiency without the DRAM

Most premium drives rely on a DRAM cache to manage data efficiently. The Lexar NM790 skips that part entirely. It uses Host Memory Buffer (HMB) technology instead.

Here is why that matters:
Less heat: Fewer components means it runs cooler under load.
Lower power consumption: It uses up to 40% less energy than comparable PCIe Gen 4 drives with DRAM.
Smooth transfers: HMB 3.0 leverages your system RAM to handle data management, keeping performance responsive even without the extra chip.

The endurance rating is also solid at 3,000 terabytes written (TBW). That’s overkill for the average user, but essential if you’re editing 4K video or running a local game server. You aren’t going to wear it out anytime soon.

Compatibility: PS5, Laptops, and Desktops

This is an M.2 2280 single-sided drive. Why do we care about form factor?

Because it fits where other big drives don’t. The single-sided layout means it won’t clash with RAM sticks or graphics cards on smaller motherboards. It’s perfect for compact builds or slim gaming laptops that usually struggle to accommodate bulky storage solutions.

Can you use it in your console? Yes. The Lexar NM794 is fully compatible with the Sony PlayStation 5. You can install this 4TB drive directly into the expansion slot and load your PS5 games from it at full speed. It’s cheaper than buying a branded Sony drive, too.

Is this the best time to buy?

Prices for high-speed SSDs fluctuate constantly. They rise during back-to-school season and drop after major tech holidays. Right now, we are seeing a significant dip.

At $509.99, the price per terabyte drops below $128. For a top-tier PCIe 4.0 drive with no DRAM penalty and that level of endurance, that is a steal. Most 4TB competitors with similar speeds hover closer to the $650-$700 mark.

If you are sitting on the fence wondering whether you actually need 4TB, remember this: storage is the only component in your PC that you can’t upgrade later without reinstalling everything. Once you get used to having zero anxiety about your disk usage, going back is impossible.

Grab the deal while the price holds. When the $750 tag comes back, you’ll probably regret waiting.

Get the Lexar NM790 at Amazon before the clock runs out.

Editor’s note: Lois Mackenzie covers deals and gear for Mashable. Prices are subject to change without notice.