Cherry MX Blue Switch (Clicky)
The Cherry MX Blue switches are the most popular switches for typing because they have a ?clicky? tactile bump when the activation point is hit. This feedback helps to increase typing speed by reducing effort needed to push the keys all the way down. The Cherry MX Blue switch is the most ?clicky? of the Das Keyboard line.
Cherry MX Brown Switch (Soft Tactile)
The Cherry MX Brown switches have a soft, tactile bump about halfway through the key press. The Soft Pressure Point switch technology makes the mechanical keyboard a little less clicky while still providing an awesome tactile experience.
Oversized Volume Knob & Dedicated Media Controls
With its large volume knob, Das Keyboard 4 allows users to quickly adjust volume while on a Skype call, in a Google hangout, or streaming online music. The Das Keyboard 4 also provides quick access to dedicated media controls such as mute, play, pause, next and previous track. A quick-access instant sleep button has been added to save energy while going to lunch or attending meetings.
USB 3.0 SuperSpeed Hub
Need to transfer videos to your workstation but don?t have time to wait all day for file transfers to complete? Don?t worry. Das Keyboard 4 has a blazing fast two-port USB 3.0 hub to transfer music, high resolution pictures and large videos at up to 5Gb per second. That?s 10 times faster than USB 2.0. It is backwards compatible with all USB 2.0/1.1 devices and hosts so previous peripheral investments are protected.
N-Key Rollover
Gamers and fast typists will love to hear that Das Keyboard 4 supports full n-key rollover (NKRO) over USB. No need to use a PS2 adapter anymore. Just press shift + mute to toggle NKRO.
Blank & Bad Ass
Type faster than you ever thought possible on one of these blank babies. The Das Keyboard 4 Ultimate is a completely blank keyboard for bad ass typists and gaming enthusiasts.
Footbar = Ruler
We got tired of those itty bitty plastic keyboard feet. They are fragile and typical. The magnetically detachable Das Keyboard footbar raises the keyboard to an optimal 4-degrees. It looks sharp and can be used as a precise ruler when not in use as a footbar. 16-Inch red ruler is scaled on both sides. A ruler? Why not?
Extra Long Cable
Das Keyboard 4 sports a 2-meter (6.5ft) cable that goes through desk grommets to keep your workspace neat and tidy. Now equipped with only one USB cable to power keyboard and USB hub at the same time.