Hard Disk Form Factor

[choukyla]

Hi

Please can someone help me ?

What does hard disk form factor means ?  To be more precise

    * 3.5" x 1/3H (118),
    * 3.5" x 1/4H (11),
    * 3.5" (,
    * 3.5" Slim Line (3)

I know what 3.5" means, since this is pretty much descripted everywhere on the net.  But I haven't found anyone talking about the other bit which is 1/3H, 1/4H etc etc.

Does anyone know anywhere I can read up on this info ?

Does all of them fit into a 3.5" bay ?  If so what's the point quoting this extra info ?

Thanks
An.

[stevejohnson1958]

Those dimensions refer to the height of the drive.

[soybean]

Does all of them fit into a 3.5" bay ?  If so what's the point quoting this extra info ?

What seller are you talking about?  newegg.com does not post the height info on their site.  They're a major online seller, so if they don't post such info, I don't know why other sellers would post it.

[stevejohnson1958]

Good point, soybean...and you're right...most sellers don't post this info...yet I have seen it from some vendors...primarily those manufacturers who make the drives.

However...a 3.5" 1/2H  won't fit into a drive bay designated for a 3.5" 1/3H drive...

Or am I missing something?