Helps straighten wrists by allowing you to adjust the angle of separation from 0 degree to 30 degrees between left and right keys. It also allows 0 degrees, 8 degrees or 14 degrees of lateral tilt at the center. Palm supports are removable. AT and Windows(r) 95 compatible. Interface box available for SUN(r) system and Macintosh. Measures 1in x 15in (2.5 x 38cm) with a depth of 6-1/2in (17cm) without palm supports, 10in (25cm) with supports.The Kinesis(r) Maxim(tm) Keypad allows flexible positioning on either the right or left side of the keyboard. AT and PS/2 system compatible. Measures 3-7/8in x 1-1/2in x 6-1/2in (9.8 x 3.8 x 17cm).