The keyboard is compatible with win7,win8,win10, iOS, and MAC system. Pro Software for Customization bit., ly/nb681_software_240229 Hot-swappable All-around Brown - Hot-swap PCB allows you to replace 3 pins/5 pins switches freely, compatible with any MX-style switch (brands like Gateron and Kailh, etc., ). Stable, fast transmission Stable Type-C Wired Connection 2 built-in USB ports allows you to connect more periphery device The keyboard is compatible with win7, win8, win10, win11, iOS, and MAC system. Compact but Practical 65% Layout - Ultra-compact design with 68 keys portable layout. Equipped with brown switch which compromises the merit of tactile bump and low noise. Date First Available September 14, 2021 Detachable Frame for Easy Customization Remove the frame for floated style or keep it for embedded style looking A good blend of typing and gaming.2 USB 2.0 Ports and Type-C Wired Connection - 2 built-in USB passthrough ports allow you to connect more periphery devices such as mouse and flash disk directly into the keyboard for easy access and faster productivity. 3 pins/5 pins Switches Replaceable Hot-swap PCB allows you to replace 3 pins/5 pins switches freely without soldering issue LTC is straightforward, so If nothing else, you could just scan the audio stream for LTC data, as documented on wikipedia. Each 80 bit frame ends with 0011 1111 1111 1101, just scan for that byte sequence to synchronize, then cast the buffer data starting after that sync sequence to be an array of 80 bit struct timecode_t elements. If your buffer is sized as a multiple of 80 your calculations... The keyboard is hot-swappable and you can replace most of the 3/5 pin switches on this keyboard. Dynamic RGB Backlight - 18 preset backlight modes available on board. Enhance Gaming Vibe Dynamic RGB Backlit 18 preset RGB lighting modes, backlight brightness levels and breathing speed adjustable on board Can the keyboard work under macOS system? Yes,the keyboard support macOS system. You can also use it as charging ports for cell phones and accessories. Dynamic RGB Backlight - 19 preset backlight modes available on board. 1 Software 2 RGB 3 Detachable Frame 4 Foldable Feet The type-C wired connection method guarantees a high speed and stable data transmission. #138 in Mac Gaming Keyboards Buy LTC NB681 Nimbleback Wired 65% Mechanical Keyboard, RGB Backlit Ultra-Compact 68 Keys Gaming Keyboard w/ Hot-Swappable Switch and Stand-Alone Arrow/Control Keys (Hot Swappable Brown Switch White) with fast shipping and top-rated customer service. shopping upgraded Professional Software Supports - Remap keys' function, assign macros, and customize RGB lighting effect with the powerful LTC drive. LTC NB681 Nimbleback Wired 65% Mechanical Keyboard... Keyboard 65 LTC NB681 Nimbleback Wired 65% Mechanical Keyboard, RGB Backlit Ultra Compact 68 Keys Gaming Keyboard Hot Swappable Switch Stand Alone Arrow Control Ho Rk61 Pro Gorgeous color schemes and reactive effects.