Humanscale Keyboard Arm with 400 Diagonal Big Keyboard Platform



  • 400 keyboard tray platform offers the widest single surface for a keyboard tray
  • Diagonal keyboard tray design supports nearly all standard keyboards and made to fit most desks.
  • The keyboard platform is made of phenolic: it's an ultra-strong, remarkably thin (1/4") composite that’s non-toxic, durable and easy to clean
  • The platform design supports multiple keyboards and mice combos and will fit most desks, including corner desks, using the variety of tracks lengths and corner sleeves available.
  • No mouse platforms come with this board since the work surface is so large; users would reach too far for a mouse outside their neutral reach zone
  • Keyboard Arm sold separately
  • Dimensions: 27.5" W x 11.5" D

The Humanscale 400 Big Diagonal keyboard tray platform design ensures that users type and mouse within their neutral reach zone, creating a safe, comfortable and sustainable work environment. The neutral zone in a standard office workspace is defined as the area where a user sits and works at a desk and can easily reach and interact with surrounding computer accessories, including a keyboard and mouse. The 400 board keeps everything on one work surface instead of using a mousing platform; this keeps a mouse on the same tilt as the keyboard in use.

Humanscale is the leading designer and manufacturer of high-performance ergonomic products that improve the health and comfort of work life. Their award-winning office solutions – including self-adjusting seating, sit/stand desks, monitor arms and task lighting – inspire movement and support the user in their every posture.