SSD measures 2 3/4 inches, not 2 1/2 inches

[Muse]

I'm installing a PNY SSD 120GB, CS900. Why do they call this a 2.5" SSD when it's 2.75" wide? Will it fit in a bracket designed for 2.5" SSDs?

 

[Billy Tallis]

The 2.5" form factor standard was developed for hard drives, and gets its name from the approximate size of the platters, not from the external dimensions of the drive.

 

[Muse]

Oh... thanks!

 

[VirtualLarry]

Huh, I interesting. never noticed that before.

 

[seagate_surfer]

Yeah, as stated already, it's a form-factor thing. We have 2.5" hard drives with 7mm, 9.5mm, and 15mm z-height measurements.

 

[LTC8K6]

It goes back to 3.5" and 5.25" floppy disc drives. The floppy discs were roughly that size, but the drives were ~4" and ~5.75" wide.