Question M.2 4.0 ?

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Jun 16, 2023
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hi tommer's

Does anyone know why the mobo manufacturer's are not producing dual 4.0 M.2 slots ?

1. something is a technical hurdle.
2. the ver's are all backwards compatible, so why put a 3.0 with a 4.0.
3. if a person ever raided (2) m.2's, he's losing the transfer, writes, and rewrite speeds.

makes no sense.
 
Things have a cost in resources, both money and motherboard lanes, and motherboard margins are very small. It doesn't make sense to use these resources on features that most people aren't interested in paying for because the differences between 3.0 and 4.0 only actually matter in very specific scenarios in which sequential speed is relevant. So only the high-end motherboards tend to have them.

If a person is raiding their NVMe drives, it's far, far more likely that having the RAID in the first place is the completely pointless nonsense, not having them in 3.0 slots. For the vast majority of consumers, RAID is pointless at best, dangerous at worst.
 
hi tommer's
thank you for the response. ok, i didn't disclose that i will only use a itx m.b. so, no not available on my searches.
good to know at least there's ATX. as for raiding, i have only used raid in all my personal pc's. for 20+ years. my pespective is 'not to care about what's on the drive, if it's that important, don't install it, or accept, if you lose, you'll have the responsibility to restore.....or rebuild it. ...so nothing that i raid files to i don' t care what the consequences are. in the big pic, i don't model my life around pc's. i was 'IT,' for 25+ years. you eventually.....have enough.
 
hi tommer's
thank you for the response. ok, i didn't disclose that i will only use a itx m.b. so, no not available on my searches.
good to know at least there's ATX. as for raiding, i have only used raid in all my personal pc's. for 20+ years. my pespective is 'not to care about what's on the drive, if it's that important, don't install it, or accept, if you lose, you'll have the responsibility to restore.....or rebuild it. ...so nothing that i raid files to i don' t care what the consequences are. in the big pic, i don't model my life around pc's. i was 'IT,' for 25+ years. you eventually.....have enough.
An ITX size board has physical space issues. As well as heat, inside that little case.
Someone wanting more than a single 4.0 port is not likely to be in the market for an ITX size board.

RAID + solid state drives?
I'll just bow out of that, because I don't want to get anyone in trouble for pushing back against my "not recommended" comments.
You do you...
 
Those SSDs weren't around for 25 years, which eliminated one of the reasons for RAID in the first place: to knit together big, slow drives.

But if you don't care about anything on the drives, that *is* a scenario in which RAID makes sense. Fixing a head gasket leak on a car doesn't make sense if you're just driving it to the Demolition Derby. But for most people, they *do* care about what's on the drives and very much so, so we're very cautious about recommending RAID usage.
 
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