View 2 of Perixx Periboard-521 Wired Trackball Keyboard with Numeric Keypad,

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View 1 of Perixx Periboard-521 Wired Trackball Keyboard with Numeric Keypad, View 2 of Perixx Periboard-521 Wired Trackball Keyboard with Numeric Keypad, View 3 of Perixx Periboard-521 Wired Trackball Keyboard with Numeric Keypad,