Platform Support PC : When installing with a wired connection, please use a personal computer that has a USB port. OS : Windows XP Service Pack 2 or higher version, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 If using Bluetooth connection, the personal computer must be equipped with Bluetooth function or have a Bluetooth adapter. Nevertheless, due to toggling, there might be situations whereby it is unable to connect. Therefore, not all Bluetooth adapters are supported. * When installing Bluetooth connection, please ensure to use the mouse for operations. When installing with a wireless connection, please use a DOS/V personal computer that has a Bluetooth HID Profile. Specification Key switch / Number of keys Cherry MX Brown Switch (tactile feel) / 63 keys Keycaps Patch Keycaps Key pitch / Key stroke 19mm / 4mm Dimensions / Weight W297 x D124 x H40mm (46mm raised up by stand) / 680g Interface USB2.0 / Bluetooth ver5.1 Accessories USB cable, AA batteries, Key caps for replacement, Special Key Puller, User Manual Manual Majestouch MINILA-R Convertible Manual Data Guidance for swapping keycaps on MINILA-R Convertible 63 key Notice All our FILCO Keyboard have already passed the CE, FCC and RoHS certification. Bluetooth adapter is not included in this product, please prepare separately. RoHS2 directive is a product-level compliance based on the European Union's Directives on the restriction of certain hazardous substances in electrical and electronic equipment as to prevent risks to human health and the environment. Substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates.