1、Professional Gaming Chip: 87 keys mechanical keyboard has built in professional grade gaming chip, which runs faster, plays games more smoothly, responds quickly, operates sensitively, and N Key Rollover. 2、Conversion Function: It is 87 keys and 104 keys. The functional area of 87 keys can be converted into a digital area. The new upgrade function, when converted into a digital area, can be used as 104 keys. 3、Ergonomic Design: The wired mechanical keyboard adopts a stepped design to reduce wrist pressure, ergonomic and more comfortable to use. 4、Brown Switch: The shaft body of the mechanical keyboard is a tea switch, which is very suitable for home office work. The keys are light and have a long life. It is the first choice for lovers of brown switch keyboards. 5、Wide Compatibility: F87 mechanical keyboard supports USB2.0,USB3.0, compatible with for Windows2000,for ME,for XP,for Vista,for Win7,for HarmonyOS,for Win8,for Win10,for OS X and Other Systems. Item Type: 87 Keys Mechanical Keyboard Material: ABS Shaft Body: Brown Switch Number of Keys: 87 Keys Lighting: Monochromatic White Light, Multiple Lighting Modes Key Conflict: N Key Rollover Ergonomics: Support Connection Method: USB2.0,USB3.0 Compatible System:For Windows2000,for ME,for XP,for Vista,for Win7,for HarmonyOS,for Win8,for Win10,for OS X and Other Systems 1 x 87 Keys Mechanical Keyboard 1 x Key Puller 1 x User Manual