Key T-Bar Best uses: Laptop Carbon steel Black, Stainless steel From the industry leader in physical device security for 25 years, Kensington has developed the strongest locking solution to secure Dell laptops and tablets with a non-standard lock slot. The N17 Keyed Dual Head Laptop Lock allows you to secure a Dell laptop that has a Noble lock slot, along with a secondary device that features the industry-standard Kensington Security Slot. The 5mm Keying System with anti-pick technology allows you to use the same key for both lock heads and offers flexibility for IT administrators, as the keying system is compatible with all of Kensingtons latest locks. A carbon steel cable deters cutting attempts.Primary lock head using a unique lock engagement offers the toughest security for Dell laptops and tablets with a non-standard lock slotSecondary lock head with T-Bar Locking Technology offers unparalleled strength for devices featuring the industry standard Kensington Security Slot5mm Keyi