What official documentation says it's 1-5/8"? I posted a link to the document 
with the .7" maximum for half height 3.5"

--- On Sun, 6/7/09, PeterH <[email protected]> wrote:

> From: PeterH <[email protected]>
> Subject: Re: Compatible Hard Drives for Macintosh SE FDHD
> To: [email protected]
> Date: Sunday, June 7, 2009, 9:28 PM
> 
> 
> On Jun 7, 2009, at 8:19 PM, Gregg Eshelman wrote:
> 
> > 0.7" is "half height" for 3.5" drives. I've seen
> several 3.5" SCSI  
> > drives over 1.4" tall.
> 
> Full height 3.5" drives are 1-5/8" tall, which just happens
> to be 1/2  
> of the height of a full-height 5.25" drive.
> 
> 1-5/8" is 1.625".
> 
> One half of 1-5/8" is 0.8125"
> 
> For marketing reasons, manufacturers try to make 3.5"
> drives a  
> maximum of 1" high, except for the older SCSI models, for
> which  
> 1-5/8" applies.
> 
> The SE, SE/FDHD and SE/30 drive carrier was designed for 1"
> drives.  
> It cannot accommodate 1-5/8" drives.


      

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