2014 edition. Windows US-ANSI layout, but will work on macOS. Cherry MX Blue switches, green backlight, macros, gaming mode, n-key rollover, USB and audio pass through, etc. Near perfect cosmetic and functional condition, only flaw is two missing rubber feet on near side of keyboard. Includes all original retail packaging. Freshly cleaned: backplate vacuumed, keys disinfected, etc. $30. Priced to sell. Pick up or drop off may be arranged. Any questions please ask. Thanks for looking !