Amazon offers as low as $20.09 Aukey 87-Key 104-Key Mechanical Keyboard w/ Blue Switches.
Features: Select Aukey Mechanical Keyboards w/ Blue Switches on sale listed below from $20.09 when you apply the corresponding promotion code.
AUKEY 87-Key with Blue Switches，$20.09 via code "JKWWFEO2".
AUKEY 104-Key with Backlit Blue Switches，$31.81 via code "KE8PNKE8".
AUKEY 104-Key with Blue Switches，$26.26 via code "9DZZYYKU".
AUKEY 87-Key with Round Keycaps and Blue Switches，$25.19 via code "MCJFV4ES".
AUKEY 104-Key with Round Keycaps and Blue Switches，$30.09 via code "XKJWPOKI".