The keyboard tray chosen by mounting style
A keyboard tray takes the keyboard and mouse off the desk surface, on a rail that slides when needed or a fixed stand that positions them permanently. Mounting style determines desk compatibility, ease of installation, and the adjustment range available.
Sliding or fixed, how to choose
A sliding tray adjusts in height and tilt once installed — useful if more than one person shares the desk, or if typing position changes often. A fixed stand sits at one position with no adjustment once mounted, but installs in a few minutes with no drilling on most models. Some fixed stands raise only the keyboard; others place the keyboard and trackpad on two distinct levels, slightly offset in height so each device keeps its own place.
Compatibility with a standing desk
A screw-mounted tray reduces clearance once the desk is lowered. Before buying, compare the tray's footprint to your electric desk's lowest height to avoid any conflict with your knees or your saved height presets.
Tray width and room for the mouse
A tray that's too narrow leaves no room for the mouse next to the keyboard — it ends up back on the desk above, undoing part of the tray's benefit. Check the total available width listed on each product page, not just the keyboard's.
Full-size keyboard with Apple trackpad
A keyboard with a numeric keypad takes up more width than a short one, and a stand built for that configuration also accommodates a separate trackpad. Both devices sit on two interlocking levels, the trackpad slightly lower than the keyboard — that offset keeps the wrist from brushing it while typing. Exact dimensions and compatible connector generations vary by model and are listed on each product page.