On 11/2/2017 2:18 PM, m.roth at 5-cent.us wrote: > We have a fair number of SAS 3.5" drives, and yes, 10k or 15k speeds. those are internally 2.5" disks in a 3.5" frame. you can't spin a 3.5" disk much faster than 7200 rpm without it coming apart. -- john r pierce, recycling bits in santa cruz