In 2015, some versions of Das Keyboards began shipping with Cherry MX clone switches manufactured by Greetech. As with previous models, it was available in an "Ultimate" (blank) configuration, as well as a more standard "Professional" version with key legends. The "Das Keyboard 4" was introduced in 2014, featuring new aesthetics and improved construction. The latter is intended for applications demanding lower noise levels than obtained with the regular clicky MX blue stem switches while retaining a similar tactile characteristic.
#Das keyboard 4 ultimate brown professional
Again, it is shipped in both Ultimate (unlabeled) and Professional (labeled) versions, both 104- and 105-key, with the addition of a labeled Professional Silent model featuring non-clicky but tactile MX brown stem keyswitches.
![das keyboard 4 ultimate brown das keyboard 4 ultimate brown](https://www.yangcanggih.com/wp-content/uploads/2014/04/Daskeyboard-4-Ultimate2.jpg)
It contains revised electronics to address some of the common complaints along with supporting media keys and PS/2 operation. The "Das Keyboard Model S" was introduced in late 2009, and continues to be sold today. In addition, interoperability issues related to the USB hub and lack of power were noticed with some systems. This version was not without its problems, however, as it became known that key transposition errors could occur at high typing speeds. Both 104-key (ANSI) and 105-key layouts (ISO) were offered. This USB-only keyboard also offered six-key rollover capability (the maximum for a conventional USB HID keyboard), an internal two-port USB hub and came with a glossy surface.
![das keyboard 4 ultimate brown das keyboard 4 ultimate brown](https://www.get-digital.se/web/getdigital/gfx/productsMore/__generated__resized/1100x1100/DasKeyboardModelSUltimate_IMG_20140829_204900.jpg)
The third iteration in 2008 was the first to be offered in both Ultimate (unlabeled) and Professional (labeled) versions. The second iteration in 2006 was identical to the original in design but introduced mechanical key switches using Cherry MX Blue switches.
![das keyboard 4 ultimate brown das keyboard 4 ultimate brown](https://massdrop-s3.imgix.net/product-images/das-keyboard-4-ultimate/MD-12567_20151030172623_fc4dd1cd699fc951.jpg)
The first iteration, released in 2005, did not feature mechanical key switches, but in addition to the blank keycaps, it featured a Model-M-inspired design, and individually weighted keypresses, because some keys are pressed with less force than other keys. There have been multiple generations of Das Keyboard: