Generally, Safire 16CH recorders with space for 2 hard disks, allow to mount the special "SF-ENRACK" tabs, which adapt to a rack cabinet allowing the recorders to be rack mountable.
In the case of devices that, a priori, are not rackable and do not allow mounting tabs, the special trays for rack cabinets, of the "SHELF-" type, allow to place devices that are part of a rack cabinet.