FC660M

Switch options: Cherry MX Black, Brown, Blue, Red, Silent Red, or Clear.

Switch options: Cherry MX Blue, Brown, Red, Black, or Silent Red.

Switch options: Cherry MX Black, Brown, Blue, Red, Silent Red, Clear, or Silver.

Switch options: Cherry MX Black, Brown, Blue, Red, Clear, or Silent Red.

Switch options: Cherry MX Brown, Blue, Red, or Black.

Switch options: Cherry MX Brown, or Blue.