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N3RD_01 5.4K Views
Jan 31, 2026 5:38 PM

WD_BLACK SN850X 4TB NVMe SSD - M.2 2280, Up to 7,300 MB/s $355.99

$356

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WD_BLACK SN850X 4TB NVMe SSD - M.2 2280, Up to 7,300 MB/s

https://www.amazon.com/dp/B0B7CQ2...YTE_1&th=1
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WD_BLACK SN850X 4TB NVMe SSD - M.2 2280, Up to 7,300 MB/s

https://www.amazon.com/dp/B0B7CQ2...YTE_1&th=1

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Original Poster
Pro
Jan 31, 2026 7:16 PM
3.8K Comments
Joined Nov 2018
N3RD_01
Original Poster
Pro
Jan 31, 2026 7:16 PM
3.8K Comments
OOS now
Jan 31, 2026 7:59 PM
101 Comments
Joined Dec 2010
techtoys617Jan 31, 2026 7:59 PM
101 Comments
Quote from N3RD_01 View quoted comment :
OOS now
Saved you from being stupid
1
Jan 31, 2026 9:32 PM
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Joined Aug 2009
MinionsJan 31, 2026 9:32 PM
2.8K Comments

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Quote from techtoys617 View quoted comment :
Saved you from being stupid
What's stupid about a 4TB Dram NVME drive for less than $100/tb. Right now $90-100/TB is a good deal.... and that won't change any time soon due to the dram/ram shortages. That's reality. If you can live without a NVME/RAM/GPU for 2-3 years then yeah you can probably save a little money waiting 3~ years.
2
Jan 31, 2026 9:53 PM
297 Comments
Joined Sep 2015
pmrowczynskiJan 31, 2026 9:53 PM
297 Comments
Quote from Minions View quoted comment :
What's stupid about a 4TB Dram NVME drive for less than $100/tb. Right now $90-100/TB is a good deal.... and that won't change any time soon due to the dram/ram shortages. That's reality. If you can live without a NVME/RAM/GPU for 2-3 years then yeah you can probably save a little money waiting 3~ years.
Not quite less than $100 / TB but there are decent prices out there for Gen 4 if not Gen 5. For example, I'm pulling the trigger on Crucial T700 at 4TB running at $429/ea. This is about the same $108/TB that I'm seeing whereas the performance profile of the CT4000T700SSD3 is 12.4 read, and 11.8 write.

With that in mind though, if you're maxing out the M2 slots of your motherboard, you're going to be at Gen 4 speeds so something "around" 7-8000" is where you want to purchase anyhow.

NAND is being slurped by the AI firms and it's not going to get cheaper. Apple is is going to renegotiate in for Q2 and onward, with every other major firm (SK Hynix, Micron and Samsung) looking to lock in the contracts with the big players - little consumers are so screwed. I'm expecting prices to increase and /maybe/ come back down 10-15% from the peaks in Q2/Q3 .

IMO, this wasn't a bad deal. I'm glad I didn't have to decide this or a few more dollars for a bit more future-proofing.

Samsung ... I'm seeing 4TB at over $1000 and some even pushing $2.2K 8TB is ... absurd.
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Jan 31, 2026 10:08 PM
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MinionsJan 31, 2026 10:08 PM
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Quote from pmrowczynski View quoted comment :
Not quite less than $100 / TB but there are decent prices out there for Gen 4 if not Gen 5. For example, I'm pulling the trigger on Crucial T700 at 4TB running at $429/ea. This is about the same $108/TB that I'm seeing whereas the performance profile of the CT4000T700SSD3 is 12.4 read, and 11.8 write.

With that in mind though, if you're maxing out the M2 slots of your motherboard, you're going to be at Gen 4 speeds so something "around" 7-8000" is where you want to purchase anyhow.

NAND is being slurped by the AI firms and it's not going to get cheaper. Apple is is going to renegotiate in for Q2 and onward, with every other major firm (SK Hynix, Micron and Samsung) looking to lock in the contracts with the big players - little consumers are so screwed. I'm expecting prices to increase and /maybe/ come back down 10-15% from the peaks in Q2/Q3 .

IMO, this wasn't a bad deal. I'm glad I didn't have to decide this or a few more dollars for a bit more future-proofing.

Samsung ... I'm seeing 4TB at over $1000 and some even pushing $2.2K 8TB is ... absurd.
Sure but this is both a TLC and a dram NVME drive. Most of the cheaper drives are QLC and non-dram. It's like comparing apples to oranges. https://www.ibm.com/think/insights/qlc-vs-tlc
The main thing you'll notice is TLC will have 2-3x lifetime write rating compared to QLC, meaning your drive will last 2-3x longer.
Last edited by Minions January 31, 2026 at 02:13 PM.
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Feb 1, 2026 8:39 PM
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Joined Sep 2015
pmrowczynskiFeb 1, 2026 8:39 PM
297 Comments
Quote from Minions View quoted comment :

Sure but this is both a TLC and a dram NVME drive. Most of the cheaper drives are QLC and non-dram. It's like comparing apples to oranges. https://www.ibm.com/think/insights/qlc-vs-tlc
The main thing you'll notice is TLC will have 2-3x lifetime write rating compared to QLC, meaning your drive will last 2-3x longer.
You're kidding right?The longevity is measured in years especially for light users (gamers, streamers, etc) where 7000 is just fine.Let me hit a PC and pull some actual numbers. For most people, we'd be talking 5-15 years and people aren't going to need the same SSD to last 10-45 years!
1
Feb 1, 2026 9:13 PM
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Joined Aug 2009
MinionsFeb 1, 2026 9:13 PM
2.8K Comments
Quote from pmrowczynski View quoted comment :
You're kidding right?The longevity is measured in years especially for light users (gamers, streamers, etc) where 7000 is just fine.Let me hit a PC and pull some actual numbers. For most people, we'd be talking 5-15 years and people aren't going to need the same SSD to last 10-45 years!
I guess I'm the outlier, since I expect my NVME's to last longer than 4-5 years? Stick with the cheapest NVME drives you can get then. I have a 980 pro 1TB Nvme thats down below 84% health, with a estimated remaining life of 674 more days. (total expected lifespan 4.2 years?) But feel free to tell me how NVME drives last longer, while I'm over here with reality. This drive was purchased after their firmware was patched to correct whatever issue they had at launch too, so its not a firmware/product issue.

The larger the nvme/ssd the longer the life span as it has more places to write before the same spot is overwritten again (this spreading out the writes). all I'm saying is TLC is vastly superior to QLC in terms of lifespan.
Last edited by Minions February 1, 2026 at 01:19 PM.
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Feb 1, 2026 9:36 PM
297 Comments
Joined Sep 2015
pmrowczynskiFeb 1, 2026 9:36 PM
297 Comments
.....
1
Feb 1, 2026 9:36 PM
297 Comments
Joined Sep 2015
pmrowczynskiFeb 1, 2026 9:36 PM
297 Comments
Quote from Minions View quoted comment :
I guess I'm the outlier, since I expect my NVME's to last longer than 4-5 years? Stick with the cheapest NVME drives you can get then. I have a 980 pro 1TB Nvme thats down below 84% health, with a estimated remaining life of 674 more days. (total expected lifespan 4.2 years?) But feel free to tell me how NVME drives last longer, while I'm over here with reality. This drive was purchased after their firmware was patched to correct whatever issue they had at launch too, so its not a firmware/product issue.

The larger the nvme/ssd the longer the life span as it has more places to write before the same spot is overwritten again (this spreading out the writes). all I'm saying is TLC is vastly superior to QLC in terms of lifespan.
1000-3000 TBW (Terra Bytes Written) is what is typically used to measure longevity of these devices. For writes given a typical user operates in the 10-30GB / day, we can extend this to 600GB/month or 7.3TB/yr on average - again for writes.

Using 7.3TB we then can compare against the TBW of this specific drive : 4TB at 2400 TBW (https://www.storagereview.com/rev...ssd-review)

Mathing 2400/7.3 = 328 years

Let's math out a heavy user, 50GB / day which at 18.25 is 131 years. Which is still a very long time.

Let's flip this around - you want this device to last 20 years before you're forced to consider upgrading (20 years ago we were purchasing 256GB SSD for nearly $1000 and no one is using them ... I know because I still have one or two around).

20 years is 329GB/day of WRITE operations at the 2400TBW. This means you're not using DRAM at all to cache but constantly writing 300+ GB each and every day and then after 20 years, you can expect to see the degradation.
1
Feb 4, 2026 11:08 AM
154 Comments
Joined Nov 2020
SplendidSofa5250Feb 4, 2026 11:08 AM
154 Comments
Quote from Minions View quoted comment :

I guess I'm the outlier, since I expect my NVME's to last longer than 4-5 years? Stick with the cheapest NVME drives you can get then. I have a 980 pro 1TB Nvme thats down below 84% health, with a estimated remaining life of 674 more days. (total expected lifespan 4.2 years?) But feel free to tell me how NVME drives last longer, while I'm over here with reality. This drive was purchased after their firmware was patched to correct whatever issue they had at launch too, so its not a firmware/product issue.

The larger the nvme/ssd the longer the life span as it has more places to write before the same spot is overwritten again (this spreading out the writes). all I'm saying is TLC is vastly superior to QLC in terms of lifespan.
thats doo doo. That drive is only gonna last 4 years? wtf
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