Omron - D2F-01F (Japan), D2FC-F-K(50M)-RZ, D2FC-F-7M (20M), D2FC-F-K (50M) I just replaced my switches with Omron - D2F-01F (Japan). Those switch models are global numbers and easily searchable. Kailh GM Red Huano Micro Switches TTC Gold. Each of these manufactures also makes switches that work as substitutes but have a different tactile feel and actuation pressures.