m.2 replacement for IDE or SATA drives - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 01-13-2020, 08:16 PM - Thread Starter
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m.2 replacement for IDE or SATA drives

A work in progress.

So far I've tried it with a couple 2003 and 2004 DVRs.

Its still evolving:

rev1 - changed to m.2 ssd for about twenty dollars
rev2 - changed to solid aluminum frame for 2.5 laptop m.2 holder
rev3 - changed to m.2 extension cable for m.2 outside the case
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post #2 of 4 Old 01-13-2020, 11:24 PM
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What is the attraction of using m.2?

- kelson h

The bitterness of poor quality lasts long after the sweetness of the low price is forgotten . . . life is too short to drink bad wine

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post #3 of 4 Old 01-13-2020, 11:29 PM - Thread Starter
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Quote:
Originally Posted by Kelson View Post
What is the attraction of using m.2?
Low cost, current ubiquity in common laptops the world over, brand new, not vulnerable to G-shock during shipping, not vulnerable to being a refurb drive sold as new.. easy to find from memory manufacturers.

Also.. paradoxically.. their cost keeps their size down.. but not so much for those who prefer to enlarge the usable storage space if its possible with their brand and model of DVR.

And its easy to remove the m.2 for video extraction.. if that is something you would like to do.

But the frameworks could easily just adapt a common laptop drive sized 2.5 sata drive, or even a 3.5 sata laptop.. but you have the negatives of those as well.. figuring out which smaller size (capacity) is suitable for a DVR.

.. not to mention power draw and heat.. or "noise" potential from the spinning parts.

example: a 13 TB Helium filled NAS drive is probably not going to be appropriate today for many reasons, Shingle versus PMR, 512 bytes per sector versus 4096, larger sizes eventually lead to more power draw, larger sizes eventually lead to more heat thrown off, larger sizes eventually lead to more noise.. but nothing says you have to go to m.2

it just sort of seems m.2 used in laptops and motherboards and servers today for ten or twenty dollars that still dwarfs yesterdays 40 or 80 GB might be a better fit

i did try to go with SD, microSD and CompactFlash late last year.. but then realized Crucial/Micron has bought out LEXAR and shut it down.. seeing no future in CompactFlash. TRANSCEND is still marketing CompactFlash, but its going up in price and they are focusing more and more on their Industrial customers for their special legacy needs.. its a dying form factor

SD and microSD are incredibly cheap per GB.. but don't have the controller chip traditional SSD or m.2 drives have to take care of wear leveling and reporting on the condition and lifespan of the drive.. and when they are popped into a USB3.0 PC dock they can transfer their contents at very high speed... far beyond anything imagined 20 years ago. m.2 can transfer at those high speeds.. SD, microSD and CompactFlash cannot

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post #4 of 4 Old 01-14-2020, 07:04 PM
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Thanks, I was just curious. I don't have any experience with m.2 cards. Never had a need for them.

- kelson h

The bitterness of poor quality lasts long after the sweetness of the low price is forgotten . . . life is too short to drink bad wine

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