Male connector with improved locking recess without "window", more stringent housing increases durability Improved chuck type strain relief provides higher pull-out force and makes assembly easier and faster Boot with polyurethane gland gives high protection to cable bending stresses Colored rings and boots available for coding or identification Sleek and ergonomic design - valuable and handy Rugged zinc diecast shell, long-lasting and dependable Internal thread on shell is well protected against any damage Branded with unique hologram - guarantees genuine and authentic Neutrik product