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Looking for slimline 3.5" HDDs

This is a discussion on Looking for slimline 3.5" HDDs within the Hard Drive Support forums, part of the Tech Support Forum category. Hello, almost all 3.5" HDDs nowadays are of/around the 1/3H factor in terms of height, meaning they're 1.0 in (25.4


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Old 11-24-2018, 10:23 AM   #1
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Hello, almost all 3.5" HDDs nowadays are of/around the 1/3H factor in terms of height, meaning they're 1.0 in (25.4 mm) to 1.028 in (26.1 mm). HOWEVER, I'm looking for slimline 3.5" HDDs; drives that are around 20 mm in height.

The only ones I'm aware of are the following (I'm stating the max capacity from each line, because I'd like to have as many GBs as possible) and they're all Seagate:
ST3500418AS ♦ 19.98 mm / 0.787 in ♦ 500 GB ♦ 7200 rpm
ST3500410AS ♦ 19.98 mm / 0.787 in ♦ 500 GB ♦ 7200 rpm
ST500DM002 ♦ 19.98 mm / 0.787 in ♦ 500 GB ♦ 7200 rpm
ST1000DM003 ♦ 20.17 mm / 0.7825 in ♦ 1 TB ♦ 7200 rpm
ST4000DM004 ♦ 20.2 mm / 0.795 in ♦ 4 TB ♦ 5400 rpm
Is anyone aware of any other big-capacity options for 3.5" HDDs in this height?
Thank you very much in advance!
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Old 11-27-2018, 03:26 AM   #2
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So the height of HDDs are based on the number of platters in the drive providing the total capacity of the drive. This might not always be the case though...But a good place to start..

To make it simple a 1 TB HDD with a single 1 TB platter would be thinner compared to a 1 TB HDD with 2 512 GB platters...

If you'd like the model numbers, then go to this site (can't promise the legitimacy so do your own due diligence) https://rml527.blogspot.com/

This blog seems to have consolidated HDDs based on vendor and model and look at the number of platters and depending on that choose a hard drive which has lesser platters.
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Old 11-27-2018, 11:38 AM   #3
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The Height of a HDD is important in a 2.5" Laptop HDD as notebooks are becoming thinner and thinner. Height becomes an issue with a thin laptop
Unless you are putting your 3.5" Desktop HDD into a thin enclosure, then height shouldn't be an issue as Desktop HDD carriages should be able to accommodate any HDD height. Why is a 3.5" HDD's Height important to you?
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Old 11-27-2018, 12:25 PM   #4
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Old 12-01-2018, 12:36 AM   #5
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Quote:
Originally Posted by tristar View Post
So the height of HDDs are based on the number of platters in the drive providing the total capacity of the drive. This might not always be the case though...But a good place to start..
To make it simple a 1 TB HDD with a single 1 TB platter would be thinner compared to a 1 TB HDD with 2 512 GB platters...
If you'd like the model numbers, then go to this site (can't promise the legitimacy so do your own due diligence) https://rml527.blogspot.com/
This blog seems to have consolidated HDDs based on vendor and model and look at the number of platters and depending on that choose a hard drive which has lesser platters.
Thank you, tristar; that's a meaningful rationale. However, by going through the lists I found out that there's no HDD manufacturer other than Seagate that still produces slimline HDDs.

By the way, I ended up finding a few more P/Ns this way:
ST1000DX001 ♦ 20.17 mm / 0.7825 in ♦ 1 TB ♦ 7200 rpm
ST1000NC001 ♦ 20.0 mm / 0.787 in ♦ 1 TB ♦ 7200 rpm
ST1000NC000 ♦ 20.0 mm / 0.787 in ♦ 1 TB ♦ 7200 rpm
ST1000VX000 ♦ 19.98 mm / 0.787 in ♦ 1 TB ♦ 7200 rpm
ST1000VM002 ♦ 20.0 mm / 0.787 in ♦ 1 TB ♦ 5900 rpm
It looks that in this height, at this time at least, one can only have max 1 TB at 7200 or 5900 rpm, and up to 4 TB but at 5400 rpm.

Quote:
Originally Posted by spunk.funk View Post
The Height of a HDD is important in a 2.5" Laptop HDD as notebooks are becoming thinner and thinner. Height becomes an issue with a thin laptop
Unless you are putting your 3.5" Desktop HDD into a thin enclosure, then height shouldn't be an issue as Desktop HDD carriages should be able to accommodate any HDD height. Why is a 3.5" HDD's Height important to you?
Because I want them for a special use in a tight available space.

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Originally Posted by Corday View Post
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Old 12-12-2018, 01:36 PM   #6
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These must be the latest fast-spinning models and yasss, at last a breakthrough for > 1 TB:

ST1000DM010 ♦ 20.2 mm / 0.795 in ♦ 1 TB ♦ 7200 rpm
ST2000DM008 ♦ 20.2 mm / 0.795 in ♦ 2 TB ♦ 7200 rpm with 256 MB buffer
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