PRODUCT NUMBERCK-530-GKTR1-** (Red Switch), CK-530-GKTL1-** (Blue Switch), CK-530-GKTM1-** (Brown switch)KEYBOARD SWITCH TYPEMechanical SwitchKEYBOARD MATERIALPlastic, AluminumKEYBOARD COLORGunmetal BlackKEYBOARD KEYCAPSPart of Asia/US layout: ABS Double-injection keycaps, Other layouts: ABS Painting & Laser-engraved keycapsKEYBOARD LED COLORRGBKEYBOARD POLLING RATE1000HzKEYBOARD RESPONSE RATE1ms / 1000HzKEYBOARD MCU32bit ARM Cortex M3KEYBOARD ON-BOARD MEMORY512 KB