The RM-KIT-SWITCH 19″ Universal Adjustable Rack Ear Rack Mount Kit ensures a secure mount for 17.3 inch switches. It features adjustable rack mount ears for a distance of 29-40mm, and comes with 8 sets of switch screws and 4 sets of cabinet kits to easily install the switch to a rack or wall. Its versatility helps you mount your switch with the utmost precision, strength, and stability.