Large no of our customers (large manufacturing ) use older legacy hard disks ( 2.5" & 3.5" )
Since getting new or healthy IDE hard disks has become difficult for older automation equipments like PLC , CNC etc
I want to know whether 2.5" IDE SSD's will be compatible for 3.5" IDE hard disks (with 2.5" to 3.5" converter).
These drives comes in 2 formats - 1) standard 40 pin IDE interface 2) DOM card (disk on module)
operating systems on these machines are generally windows 98 / XP etc.
Anyone has used these SSD's as replacement ?

In my experience they'll work just fine, but be careful of capacity. Those old machines don't like larger drives and for that reason we usually use industrial grade compact flash cards that support ATA. It's often cheaper and you can set max LBA to get function on older boards.

Thanks Webclaw
Yes compact flash cards is cost effcient alternate . I usually reduce size using hdat2 to match bios limitations.