Adjustable Keyboard and Mouse Tray 34 x 10 in - Ergonomic Underdesk

In this review the VIVO adjustable keyboard and mouse platform is evaluated for office and home workstations that need a cleaner desk surface and improved typing ergonomics. The bottom line: this under-desk tray is best for users seeking a wide, adjustable platform that reduces wrist strain and frees desktop space, thanks to its 34 x 10 in tray, 5 in height range and supportive rubber padding. Installation is straightforward and most standard desks are compatible, though users with frame crossbars on height-adjustable desks will need a separate spacer adapter.

Key Features

• Under-desk installation: Mounts beneath a standard desk to keep the keyboard and mouse tucked away and free up workspace.
• Deluxe 34 x 10 in tray: A roomy surface that fits most full-size keyboards and a mouse while allowing smooth forward and backward positioning on a 14.25 in track.
• Height and tilt adjustment: Offers 5 in of vertical adjustment and side-to-side rotations to help reduce wrist soreness and improve posture.
• Supportive rubber padding: Soft padding along the front edge provides comfortable wrist support for extended typing sessions.
• Simple assembly: All mounting hardware is included for a fast setup, and the total tray weight is a manageable 14.4 lbs for most desks to support.
• Height-adjustable desk compatibility tip: If your desk frame crossbar interferes, an optional spacer bracket is available to make the track fit.

Who It's For

The tray is aimed at office workers, students, and remote workers who want a tucked-away keyboard solution that improves ergonomics without replacing their desk. It is especially useful for people who type for long periods and need wrist support and a wide range of tilt and height adjustments.

People who should look elsewhere include users with very thin desks under 5/8 in or fragile desks that cannot support the 14.4 lb tray, and those who require an ultra-smooth, high-end ball-bearing slide-customer feedback is mixed on slide ease and occasional wobble.

Pros & Cons

Pros

• Sturdy-feeling construction for many users and a generous 34 x 10 in surface that fits full-size keyboards.
• Good range of ergonomic adjustment with 5 in of height travel and tilt rotation for posture improvement.
• Easy to assemble with included hardware and clear mounting design for typical desks.
• Supportive rubber padding improves comfort during long typing sessions.

Cons

• Slide ease and perceived sturdiness are mixed in user feedback; some report it feels wobbly or sticks when sliding.
• Requires a spacer bracket for some height-adjustable desk frames, which is not included.

Specifications

Brand	VIVO
Model	MOUNT-KB36B
Tray size	34 x 10 in
Track travel	14.25 in forward/back
Height adjustment	5 in
Minimum desktop thickness	5/8 in
Total tray weight	14.4 lbs

Our Verdict

The VIVO adjustable under-desk keyboard and mouse tray is a practical choice for users who want a roomy, adjustable platform that improves wrist comfort and reclaims desktop space. It offers good value with easy assembly and solid ergonomic features, but buyers should check desk thickness and consider the optional spacer if they have a height-adjustable frame or want the smoothest slide action.

Frequently Asked Questions

Will this tray fit my height-adjustable desk?
If your desk has a crossbar that interferes with the track you will need the separate spacer bracket adapter to fit over the frame.

What desktop thickness is required?
The minimum recommended desktop thickness is 5/8 in; thinner tops may not mount securely.

Does the tray include wrist padding?
Yes, the front edge has supportive rubber padding to reduce wrist soreness during typing.