Mistel MD600 Split Ergonomic Mechanical Keyboard - Cherry MX Blue Switches, White PBT Keycaps, Programmable Macros, NKRO - Compatible with Windows & Mac (US QWERTY Layout) - Perfect for Office Work, Gaming, and Long Typing Sessions

It's a high quality product. I had some problems with the keyboard going into a different mode on it's own such as from QWERTY to DVORAK. I have a sore shoulder, so I like that it can split apart to different length, so my shoulders can type in different positions to help prevent repetitive stress problems. There's a coiled cord between the two keyboard halves. I stretch it out or uncoil it to make the halves split apart to shoulder width.