I got an unassembled PC for Christmas. Assembly is almost done, but I have a 2.5" SSD and several 3.5" bays (no 2.5" bays). I have rails to slide the drive in place, but since it's smaller than the bay, I need hardware to make it fit. Everyplace I've gone says that what I need (mounting brackets or I guess "Mounting Bracket Adapter Dock/Trays") are specialty items and are specific to my case brand. Is this really true? I thought HDD mounting brackets were fairly common and interchangeable.
I have a NZXT Guardian 921 case; it's a mid-tower case.