Kailh Mechanical Key Switches - Linear Red - 12 Pack : ID 5122 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Kailh Red Switches Plate Mount - Linear - 10 Pack (Kailh)
Kailh Choc v2 Red Linear switches x 10 – Keyboardio
Kailh Mechanical Key Switches - Linear Red - 10 pack [Cherry MX Red Compatible] : ID 4952 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits