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expired Posted by Bojjihuntindeals | Staff • Apr 19, 2023
expired Posted by Bojjihuntindeals | Staff • Apr 19, 2023

1TB PNY CS900 2.5" SATA III Internal Solid State Drive

+ Free Shipping

$37

$43

13% off
Amazon
117 Comments 60,218 Views
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Deal Details
Update: This popular deal is still available.

Amazon has 1TB PNY CS900 2.5" SATA III Internal Solid State Drive (SSD7CS900-1TB-RB) on sale for $37.58 > now $36.99. Shipping is free.

Thanks to Deal Hunter Bojjihuntindeals for finding this deal.

Product Details:
  • 1TB Storage Capacity
  • 2.5"/7mm Form Factor
  • SATA III 6 Gb/s Interface
  • Up to 515 MB/s Sequential Write Speed
  • Up to 535 MB/s Sequential Read Speed
  • Triple-Level Cell NAND Flash Memory
  • 2 Million Hours MTBF
  • TRIM Support (OS Dependent)
  • 2.5mm Spacer Included for 9.5mm Bays
  • Windows, Mac, Linux & Ubuntu Compatible

Editor's Notes

Written by qwikwit | Staff
  • About this deal:
    • This offer is $7.11 less than the previous Frontpage Deal for this product.
  • About this product:
    • 4.7 out of 5 stars rating at Amazon based on over 22,500 customer reviews
  • About this store:
  • Additional Note:
    • Please refer to the Forum Thread for additional discussion regarding this deal.

Original Post

Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

Amazon has 1TB PNY CS900 2.5" SATA III Internal Solid State Drive (SSD7CS900-1TB-RB) on sale for $37.58 > now $36.99. Shipping is free.

Thanks to Deal Hunter Bojjihuntindeals for finding this deal.

Product Details:
  • 1TB Storage Capacity
  • 2.5"/7mm Form Factor
  • SATA III 6 Gb/s Interface
  • Up to 515 MB/s Sequential Write Speed
  • Up to 535 MB/s Sequential Read Speed
  • Triple-Level Cell NAND Flash Memory
  • 2 Million Hours MTBF
  • TRIM Support (OS Dependent)
  • 2.5mm Spacer Included for 9.5mm Bays
  • Windows, Mac, Linux & Ubuntu Compatible

Editor's Notes

Written by qwikwit | Staff
  • About this deal:
    • This offer is $7.11 less than the previous Frontpage Deal for this product.
  • About this product:
    • 4.7 out of 5 stars rating at Amazon based on over 22,500 customer reviews
  • About this store:
  • Additional Note:
    • Please refer to the Forum Thread for additional discussion regarding this deal.

Original Post

Community Voting

Deal Score
+87
Good Deal
Visit Amazon

Price Intelligence

Model: PNY CS900 1TB 3D NAND 2.5" SATA III Internal Solid State Drive (SSD) - (SSD7CS900-1TB-RB)

Deal History 

Sale Price
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  • Today

Current Prices

Sort: Lowest to Highest | Last Updated 4/25/2025, 07:33 PM
Sold By Sale Price
Amazon$57.99
Office Depot and OfficeMax $60.99
Best Buy$79.99
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Top Comments

Here are the base specs : https://www.techpowerup.com/ssd-s...-1-tb.d667

DRAM could provide a buffer between the computer memory and the drives blocks that are actually written to (TLC) , the controller has a little but 32MB is full really fast.

Problem for me having the same use case for this drive as Orang3Beard is that in a NAS this could be a great replacement for spinning disks, but in RAID it would be just too limited. The real bottleneck is here :
Die Read Speed: 727 MB/s
Die Write Speed: 69 MB/s

With a die write speed of less then 100MB/s this thing could be in continued write much slower then a comparable HDD. Painfully slow to fill up, probably quite decent to retrieve information from.
Found a review that shows with a screenshot what this could look like:
https://m.media-amazon.com/images...L1600_.jpg

Cons:
Reliability seems to be an issue according to some reviews.

Pro's:
Endurance: 450 TBW
Warranty: 3 Years
MTBF: 2.0 Million Hours

For me I would not want to make a ZFS RAIDz2 volume with these. Maybe a normal RAID1 would be cheap peace of mind..
Unless you are refurbishing an old computer for a family member that does not have to work hard daily I believe almost everybody would be helped spending $10-15 more for something better.
Wow. Oh how they have fallen! Keep dropping those prices.

At this rate no reason to have spinners anywhere in the house, save for the NAS.

Yeah it's not a performance beast but it's good enough for most users. Time to upgrade Granny's laptop
Returning for $3?

117 Comments

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Apr 19, 2023
86 Posts
Joined Jul 2014

This comment has been rated as unhelpful by Slickdeals users.

Apr 19, 2023
560 Posts
Joined Jun 2013
Apr 19, 2023
Orang3Beard
Apr 19, 2023
560 Posts

Our community has rated this post as helpful. If you agree, why not thank Orang3Beard

Wow. Oh how they have fallen! Keep dropping those prices.

At this rate no reason to have spinners anywhere in the house, save for the NAS.

Yeah it's not a performance beast but it's good enough for most users. Time to upgrade Granny's laptop
1
1
Apr 19, 2023
1,706 Posts
Joined Nov 2007
Apr 19, 2023
xsupan0va
Apr 19, 2023
1,706 Posts
Quote from MaartenT :
Too bad this drive does not have DRAM cache..
What's dram? Isn't this good price for 1tb?
Apr 19, 2023
533 Posts
Joined Oct 2006
Apr 19, 2023
ruibing
Apr 19, 2023
533 Posts

Our community has rated this post as helpful. If you agree, why not thank ruibing

Quote from MaartenT :
Too bad this drive does not have DRAM cache..
Even dreamless, this drive just about saturated the sata iii bandwidth. Maybe it affects random iops numbers. In any case, I think this is a pretty good upgrade for devices that doesn't support nvme.
1
Apr 19, 2023
86 Posts
Joined Jul 2014
Apr 19, 2023
MaartenT
Apr 19, 2023
86 Posts

Our community has rated this post as helpful. If you agree, why not thank MaartenT

Here are the base specs : https://www.techpowerup.com/ssd-s...-1-tb.d667

DRAM could provide a buffer between the computer memory and the drives blocks that are actually written to (TLC) , the controller has a little but 32MB is full really fast.

Problem for me having the same use case for this drive as Orang3Beard is that in a NAS this could be a great replacement for spinning disks, but in RAID it would be just too limited. The real bottleneck is here :
Die Read Speed: 727 MB/s
Die Write Speed: 69 MB/s

With a die write speed of less then 100MB/s this thing could be in continued write much slower then a comparable HDD. Painfully slow to fill up, probably quite decent to retrieve information from.
Found a review that shows with a screenshot what this could look like:
https://m.media-amazon.com/images...L1600_.jpg

Cons:
Reliability seems to be an issue according to some reviews.

Pro's:
Endurance: 450 TBW
Warranty: 3 Years
MTBF: 2.0 Million Hours

For me I would not want to make a ZFS RAIDz2 volume with these. Maybe a normal RAID1 would be cheap peace of mind..
Unless you are refurbishing an old computer for a family member that does not have to work hard daily I believe almost everybody would be helped spending $10-15 more for something better.
Last edited by MaartenT April 19, 2023 at 10:00 AM.
4
Apr 19, 2023
1,198 Posts
Joined Apr 2011
Apr 19, 2023
CompulsiveBuyer
Apr 19, 2023
1,198 Posts

Our community has rated this post as helpful. If you agree, why not thank CompulsiveBuyer

I purchased the 240GB variant last time it was one sale. It has a surprisingly deep TLC cache. Here was my observation:

I ran some benchmarks on the 240GB drive using fio under Linux. First test was writing 50% (120GB) of the capacity. It sustained ~325 MB/s for the first ~80GBs then dropped down to around 45 MB/s thereafter. If I stop the I/O and restart after a while it resumes back to 325 MB/s. Not a big deal unless your filling up the drive all at once. Sequential reads sustain around 373 MB/s. 4K QD-4 random writes sustain ~12K IOPs but have intermittent drops to very low values for around a second - probably internal remapping. Overall impression is pretty good for the price paid.
2
Apr 19, 2023
463 Posts
Joined Mar 2011
Apr 19, 2023
captmeach7
Apr 19, 2023
463 Posts
Quote from xsupan0va :
What's dram? Isn't this good price for 1tb?
DRAM just increases performance. Since this is SATA and gets speeds near the max of 550 MB you really don't need it on these drives anymore.

This is a good price, but around 40 is average now. I had this same one on my list for the past couple weeks at 40.99.
3

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Apr 19, 2023
86 Posts
Joined Jul 2014
Apr 19, 2023
MaartenT
Apr 19, 2023
86 Posts
Quote from CompulsiveBuyer :
I purchased the 240GB variant last time it was one sale. It has a surprisingly deep TLC cache. Here was my observation:

I ran some benchmarks on the 240GB drive using fio under Linux. First test was writing 50% (120GB) of the capacity. It sustained ~325 MB/s for the first ~80GBs then dropped down to around 45 MB/s thereafter. If I stop the I/O and restart after a while it resumes back to 325 MB/s. Not a big deal unless your filling up the drive all at once. Sequential reads sustain around 373 MB/s. 4K QD-4 random writes sustain ~12K IOPs but have intermittent drops to very low values for around a second - probably internal remapping. Overall impression is pretty good for the price paid.
Thank you, that completes the picture. For me that would mean that this is a great HDD replacement as a main system drive. If you are comfortable making frequent backups, this seems to be great value. (Still no NAS candidate)
Apr 19, 2023
1,118 Posts
Joined May 2006
Apr 19, 2023
zephyrprime
Apr 19, 2023
1,118 Posts
Anyone ever pop something like this into a PS4 ?
Apr 19, 2023
63 Posts
Joined Apr 2007
Apr 19, 2023
Gr1nch
Apr 19, 2023
63 Posts
Any warnings for using this with an Atomos Ninja V?
Apr 19, 2023
1,198 Posts
Joined Apr 2011
Apr 19, 2023
CompulsiveBuyer
Apr 19, 2023
1,198 Posts
Quote from MaartenT :
Thank you, that completes the picture. For me that would mean that this is a great HDD replacement as a main system drive. If you are comfortable making frequent backups, this seems to be great value. (Still no NAS candidate)
Agree completely. I reached the same conclusion after testing the drive. I'm using the 240GB as a fast thumb drive (paired with cheap USB adapter) but plan on adding the 1TB for secondary storage.
Apr 19, 2023
808 Posts
Joined Dec 2008
Apr 19, 2023
Jinxc
Apr 19, 2023
808 Posts
Quote from captmeach7 :
DRAM just increases performance. Since this is SATA and gets speeds near the max of 550 MB you really don't need it on these drives anymore.

This is a good price, but around 40 is average now. I had this same one on my list for the past couple weeks at 40.99.
why would you not want DRAM? Having a DRAM is always a plus and necessity for larger files. You want DRAM, unless your use-case is simple gaming storage.
Apr 19, 2023
879 Posts
Joined Dec 2007
Apr 19, 2023
ghettoroadster
Apr 19, 2023
879 Posts
WTF I literally just bought 1 3 days ago for $41, haven't even installed it yet, guess I'm returning it already to Amazon? This is insane.
2
6
Apr 19, 2023
1,630 Posts
Joined Feb 2007
Apr 19, 2023
techie333
Apr 19, 2023
1,630 Posts
Ohh at these prices it could work well just as backup drive for my laptop if/when it fails. Is dram necessarily going to cause excessive slowdowns on backing up my 1tb laptop drive which is about 50% full?

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Apr 19, 2023
2,615 Posts
Joined Apr 2007
Apr 19, 2023
myadidas1981
Apr 19, 2023
2,615 Posts
Quote from ghettoroadster :
WTF I literally just bought 1 3 days ago for $41, haven't even installed it yet, guess I'm returning it already to Amazon? This is insane.
Returning for $3?
3
1

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