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2TB SanDisk Ultra 3D NAND 2.5" Internal Solid State Drive EXPIRED

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Best Buy via eBay has 2TB SanDisk Ultra 3D NAND 2.5" Internal Solid State Drive (SDSSDH3-2T00-G25) on sale for $179.99. Shipping is free. Thanks

BHPhotoVideo.com also has 2TB SanDisk Ultra 3D NAND 2.5" Internal Solid State Drive (SDSSDH3-2T00-G25) on sale for $179.99. Shipping is free.

Amazon.com also has 2TB SanDisk Ultra 3D NAND 2.5" Internal Solid State Drive (SDSSDH3-2T00-G25) on sale for $179.99. Shipping is free.

Note: Usually ships within 1 to 4 weeks.

BestBuy.com also has 2TB SanDisk Ultra 3D NAND 2.5" Internal Solid State Drive (SDSSDH3-2T00-G25) on sale for $179.99. Shipping is free.
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Last Edited by SaltyOne November 7, 2019 at 01:16 PM
Also available at B&H Photo Video [bhphotovideo.com] for $179.99

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Joined Oct 2005
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#46
Quote from Tbl5143
:
SSD will lose data if not powered on for extended time. How quickly varies.
https://www.pcworld.com/article/2...r-all.html
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#47
Nobody here said that they would lose data after a few days or weeks. According to this other article https://www.anandtech.com/show/92...-retention, the SSD spec requires that the drive be functional and the data retained for 52 weeks if the drive stored at 30°C, which is high but not absurdly high. There's a table which if I am interpreting correctly, says 105 weeks if stored at 25°C. But the specific numbers aren't necessarily important; the concept is that an SSD can indeed lose data or become nonfunctional if left unpowered for long enough.
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Last edited by stannius November 8, 2019 at 01:53 PM.
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#48
Quote from NewMaxx
:
The SU800 has the (updated) SM2258 for one thing, versus the Marvell 88SS1074 on the MX300, and also has more overprovisoning. It also has a massive SLC cache (the entire drive - 1/3 the capacity, therefore) to compensate for the slow TLC (which is actually MLC in 3-bit mode, not native TLC, by the way). And even then it's faster than QLC - you're talking sequentials here, but you're forgetting QLC has way worse latency and endurance. I agree the SU800 is outdated by modern TLC (and not just Samsung's) but it's a better drive than a "disaster." You do realize that same NAND and controller are used in dozens of drives currently on the market, right?

The SU800's weakness is at smaller capacities (since you want enough dies/CE to saturate the controller, the SLC cache is smaller as well) and when fuller (dynamic SLC at work again). However for most people the 512GB SKU (for example) is as fast as any other drive on the market. It's not DRAM-less and within the SLC cache, with the up-to-date SM2258 controller, it's quite performant.
My apologies, let me rephrase it – ultimate SU800 disaster.

Detailed analysis of SU800 implementation, benchmarks and mistakes in design. In pretty much every single benchmark it is outperformed by MX300, which was 30% cheaper at that time. I don't know how else to call this.
https://www.tomshardware.com/revi...824-2.html

Flash: Micron 384Gb three-bit per cell (TLC) NAND

Please let me know which other products use same flash. There is nothing wrong with SM2258 controller.

Endurance of 2TB 860 QVO is 720 TBW – should be enough for non-workstation use.
Intel 660p has endurance of 400 TBW – should not be an issue either.

I do not believe that there is any point to compare 660p to SU800 in terms of performance.
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#49
Quote from stannius
:
Nobody here said that they would lose data after a few days or weeks. According to this other article https://www.anandtech.com/show/92...-retention [anandtech.com], the SSD spec requires that the drive be functional and the data retained for 52 weeks if the drive stored at 30°C, which is high but not absurdly high. There's a table which if I am interpreting correctly, says 105 weeks if stored at 25°C. But the specific numbers aren't necessarily important; the concept is that an SSD can indeed lose data or become nonfunctional if left unpowered for long enough.
I have (and just repurposed as a boot drive in my FreeNAS) a small 1st-gen ADATA SSD from 2011 that was stored for over 5 years and lost nothing. I have now-obsolete digital camera media from over 15 years ago that I can still pull pictures from. You are spreading FUD.
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#50
Quote from DerProfi
:
I have (and just repurposed as a boot drive in my FreeNAS) a small 1st-gen ADATA SSD from 2011 that was stored for over 5 years and lost nothing. I have now-obsolete digital camera media from over 15 years ago that I can still pull pictures from. You are spreading FUD.
I am quoting an article quoting the JEDEC specifications. You are giving personal anecdotes. Thanks for playing.
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Last edited by stannius November 8, 2019 at 03:02 PM.
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#51
why do ;prices for 2.5 ones stay right up there almost as high per capacity as m2 nvme ones? Still a lot of people with no choice but 2.5 so it still doesn't drop in price?
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#52
Quote from AkumaX
:
The SanDisk Ultra and Samsung QVO are SATA drives -- meaning they max out at 550MB/s read/write (the SATA3 limitation). The Intel 660p is an NVMe drive which maxes out at 1800MB/s read/write. The NVMe standard itself maxes out out at around 3600MB/s read/write, but you will have to pay $$$ to get NVMe drives that are that fast.
And this doesn't even take into account the whole sequential lie for speeds that they push. There are pcie 3x2 drives that are effectively faster than 3x4 drives because of more iops.
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#53
Quote from CTPAHHIK
:
My apologies, let me rephrase it – ultimate SU800 disaster.

Detailed analysis of SU800 implementation, benchmarks and mistakes in design. In pretty much every single benchmark it is outperformed by MX300, which was 30% cheaper at that time. I don't know how else to call this.
https://www.tomshardware.com/revi...824-2.html [tomshardware.com]

Flash: Micron 384Gb three-bit per cell (TLC) NAND

Please let me know which other products use same flash. There is nothing wrong with SM2258 controller.

Endurance of 2TB 860 QVO is 720 TBW – should be enough for non-workstation use.
Intel 660p has endurance of 400 TBW – should not be an issue either.

I do not believe that there is any point to compare 660p to SU800 in terms of performance.
The SM2258 was designed for IMFT's 64-layer flash. Intel chose to use it with Hynix planar TLC in the 540 which was a bit of a disaster, but then they paired it with 64L in the 545s (SM2259 being a SM2258 with longer ECC codeword). It was not intended to be used with the 384Gb 32L TLC. For that reason, reviews of the SU800 at release were pretty lackluster. You'll notice the vast majority are YEARS OLD. Even UserBenchmark at the time had the SU800 underperforming - yet now it is stellar in UB. Don't get me wrong, I think UB is junk for the most part, I'm mentioning it because there was an upward trend in results. Why? Because the SM2258 has been updated a dozen times since then and now works great with the SU800.

The SU800's heavy reliance on a large, dynamic SLC cache was especially an issue at first. As I stated, it has more OP than the MX300, there's nothing wrong with the 88SS1074 but it is not superior to the SM2258. If you look at other drives that use the same hardware, you'll see they all perform better than the old SU800 results. Tons of examples...HP S700 Pro, Team Delta RGB SSD are the most prominent. There are others that use the NAND in DRAM-less mode for comparison (e.g. Hyundai Sapphire).

The 512GB SU800 has 576GiB of flash which means 20% OP. That's huge. It has the highest TBW of any TLC drive in its class for this reason, even with a shorter warranty period. Not that TBW matters (it doesn't). But it reveals that the design was around a large SLC cache with heavy OP, that is to say consumer workloads. Within the SLC cache the SU800 is just as fast as any other drive and it stays within it better. Again, its weak points are when fuller and at smaller capacities.

I have the SU800 as "budget SATA" on my SSD buying guides - I don't have it in the same class as the 850/860 EVO, 545s/MX500/etc., WD Blue/SanDisk Ultra 3D. Most people feel I am wrong in putting it a tier lower but I believe it belongs there. But at the same time, it's a solid entry-level drive and a great value for its price. It's not a disaster by any means.
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#54
Will this fit in my MacBook?
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#55
Quote from DerProfi
:
I have (and just repurposed as a boot drive in my FreeNAS) a small 1st-gen ADATA SSD from 2011 that was stored for over 5 years and lost nothing. I have now-obsolete digital camera media from over 15 years ago that I can still pull pictures from. You are spreading FUD.
Well, flash technology in general suffers from this problem. Specifically voltage leakage. It's unavoidable. And that's where the older flash cells are better. The first generation basically stored one bit in each cell, e.g. if the cell has a charge, it's a 1, otherwise a 0. If the charge drops a little, that's no big deal, as long as any charge can be measured it's safe to assume it's a 1. Then they figured out that they can store more than one bit in each cell by charging it with varying amounts, and when measuring reverse that. But now, if the charge drops a little, it may change the interpretation of these 2 bits more quickly. Fast forward, now we're at what, 4 bits per cell? This means that even a quite small drop in charge of a cell will change the value of these 4 bits, whereas that same drop in the first generation would have probably not changed anything. That's why older generation flash memory is more likely to retain data over extended time periods than say a TLC/QLC. But then, also quality influences that voltage leakage, some are better than others. But none are perfect.
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#56
Took a while but nice to see
1tb per 100 Dollar now 👌
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#57
How likely is this to drop over the next few months or is this going to be the holiday price for this? Thinking using some random "perks from work" cash to pick this up from best buy for $150 or wait a month or so...
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#58
Quote from RyanR7013
:
Will this fit in my MacBook?
Depends entirely on what you have. They switched to smaller SSDs for the 2013 models onward, so it would have to be an older one.
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#59
This is no longer a good deal. MX500 @ 200 on Newegg is better buy.
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#60
Quote from henizwhoa
:
I have a question to the techies....

I have an old MBP with SATA 2.5 2T HD, will it be a straight swap with this?
Yes. I have a 2012 mid macbook pro. Upgraded the hard drive to a sandisk ssd and was a lot faster.
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