We finally got to see the final version of Valve's Steam Controller at this year's Game Developers Conference in San Francisco back in the beginning of March, and today we can find the controller with both price tag and date on Steam. Well, date might not be entirely correct as Steam states it will be "available in November". This could of course mean the first of the month, but we're guessing there will be a more specific date in time.
The price is set to $49.99, which is approximately the same as you have to pay for the equivalent on PS4 and Xbox One. Not too shabby, if the controller does what it says it will. Below our pictures of the Steam Controller you can read what Valve says about the hardware:

Gamepad
We've improved upon the resolution and fidelity of input that's possible with traditional gamepads. Built with high-precision input technologies and focused on low-latency, wireless performance, the Steam controller enables you to experience your games in powerful new ways.
Dual trackpads
The Steam Controller‘s dual trackpads enable the high-fidelity input required for precise PC gaming in the living room. Allowing for 1:1 absolute position input via virtual controls like a trackball, adaptive centering joystick, or steering wheel, these surfaces can be programmed to serve up whatever a game needs.
HD haptics
Haptic force actuators on both sides of the controller deliver precise, high fidelity vibrations measured in microseconds. Feel the spin of a virtual trackball, the click of a scroll wheel, or the shot of a rifle. Every input, from the triggers to the trackpads, can offer haptic feedback to your fingertips, delivering vital, high-bandwidth, tactile feedback about speed, boundaries, thresholds, textures, or actions.
Dual-stage triggers
With a satisfying digital click at the end of the trigger pull, dual-stage triggers can be used as analog, digital, or both types of input at the same time. Put your iron-sights on the sweep-in, and then fire with the reliable feel of a tactile switch, all on the same trigger.
Ergonomic control
Each of the Steam Controller's input zones and buttons has been positioned based on frequency of use, required precision, and ergonomic comfort.