VIVO Clamp-on Keyboard and Mouse Tray, 34" x 11" Black Platform
The VIVO MOUNT-KB15EB is a clamp-on keyboard platform designed for desk users seeking additional surface area and ergonomic positioning. It utilizes a steel frame and C-clamp mounting system to accommodate standard desk configurations without the need for permanent drilling.
Research review based on an Amazon listing, recorded specifications and captured buyer ratings. Review record from Nov 8, 2026; price, rating and availability last checked Nov 10, 2026. It does not verify every maker claim. Not a hands-on test — see how we review.
Price
$69.99
Checked Nov 10, 2026
Amazon rating
4.4
★★★★★4.4
Ratings
14,206
Best for Expanding desk surface for keyboards and mice
This tray increases usable desk surface by extending the workspace for input devices, though the clamp mechanism requires significant desk overhang. Stability depends on the rigidity of the host desk edge.
Price, rating and availability as read from the listing on Nov 10, 2026; Amazon can change them at any time. We earn a commission on qualifying purchases.
Our scorecard
Research-based assessment
7.4out of 10
Overall
Build quality7.5
Steel construction provides adequate rigidity for standard typing and mouse use.
Ease of installation9.0
Clamp-on mechanism requires no power tools or surface damage to install.
Ergonomic utility7.0
Provides improved typing angles but lacks advanced vertical height or tilt adjustment.
Support relies on desk edge integrity and clamp tension during operation.
The full review
Design and Build
The VIVO MOUNT-KB15EB features an alloy steel construction measuring 33.9 inches by 11 inches, expanding to 39.4 inches when including the C-clamp assembly. The design prioritizes ease of installation, utilizing a tool-free clamping system that fastens to desk edges up to 1.25 inches thick. The platform is finished in a standard black powder coat. Notably, the unit lacks a track-mounted slide system, relying instead on the physical extension of the tray to reach its 8.5-inch maximum reach from the desk edge. Potential buyers must ensure their desk lacks beveled or curved edges, as the C-clamp requires a flat, perpendicular mounting surface to maintain necessary friction and structural load-bearing capacity. The total width of 39.4 inches dictates a specific minimum clearing requirement for any under-desk support beams or legs.
Real-world Performance
In practice, the tray functions as a static extension of the primary workstation. The 11-pound weight limit is sufficient for standard keyboard and mouse combinations, though users should weigh their specific peripherals to ensure they do not exceed this threshold. The sliding motion is dependent on the tension of the clamps; if tightened insufficiently, the tray may exhibit play or instability during rapid typing. While it offers basic ergonomic benefits by allowing a lower hand position relative to the desk surface, it does not provide articulation for negative or positive tilt. The tray provides a stable base for input devices, provided the user does not apply significant downward pressure. Users should verify that their keyboard cable lengths are sufficient to reach the computer from the extended position of the tray before finalizing the placement.
Value for Money
At a price point of $69.99, this tray positions itself as a mid-range accessory. The value proposition relies on the non-destructive installation method. Compared to permanent screw-mounted trays, the VIVO model offers lower cost and higher convenience for renters or those using high-end desks where drilling is prohibited. However, the lack of advanced adjustment features suggests it is best viewed as a surface-expansion tool rather than a comprehensive ergonomic solution. Given the 14,206 user ratings averaging 4.4 stars, there is consistent evidence of long-term durability for light-to-moderate duty. The inclusion of all necessary mounting hardware simplifies the setup, and the build quality is commensurate with the price. Prospective buyers should compare this against motorized or articulating options if their primary goal is dynamic ergonomic adjustment throughout the day.
Who Should Skip It
This product is unsuitable for users with thick, solid-wood desks exceeding 1.25 inches in thickness, as the C-clamps will not accommodate the vertical depth. Additionally, anyone using a desk with beveled, rounded, or decorative molded edges should avoid this model, as the clamps require a flat surface to prevent slipping or damage. If your desk frame has support crossbars that obstruct the space directly beneath the desktop, you must ensure the 39.4-inch total width does not conflict with the desk's internal structure. Finally, users who require precise negative tilt adjustment or height-adjustable trays to alleviate chronic wrist strain should bypass this fixed-angle solution in favor of professional-grade, articulated keyboard systems. Always measure the clearance for your chair arms to ensure they do not collide with the tray when in the retracted position.
Specifications
Recorded from the listing
Item Weight
10.42 pounds
Product Dimensions
39.4 x 11 x 3.8 inches
Material Type
Alloy Steel
Size
34 inch
Item model number
MOUNT-KB15EB
Color
Black
Shape
Rectangular
Manufacturer
VIVO
Brand
VIVO
Number of Items
1
Manufacturer Part Number
MOUNT-KB15EB
What to confirm for this exact model
Potential fit
Expanding desk surface for keyboards and mice. Confirm that the model and included equipment meet your intended use.
Trade-off to resolve
Requires significant depth for clamping Check whether this matters for your setup before ordering.
Included equipment and compatibility
Check the exact variant, quantity, dimensions, required accessories and any applicable power or connection requirements. A missing specification is unknown, not proof that a feature is absent.
Ownership and purchase terms
Verify seller, delivered price, return conditions and manufacturer warranty for your location. Check replacement parts and ongoing costs where applicable.
What the maker claims
—Extra Long Tray: This 33.9" (39.4" including clamps) x 11" under-desk keyboard tray holds your keyboard, mouse, and other small accessories below the desktop for added work space and holds up to 11 lbs --Patent Pending--
—Comfortable Typing Angles: Easily slide the tray in and out and enjoy ergonomic typing angles that relieve stress on your wrists and shoulders. The tray extends a maximum of 8.5” from the edge of your desk
—Compatibility: Before purchasing, please make sure that your desk surface does not exceed a thickness of 1.25". Note the tray's total length from clamp to clamp is 39.4", so please make sure you have that much space on your desk before purchasing
—Sturdy C-Clamps: Attach the keyboard tray to your workstation without causing any damage to your desk (1.25” maximum desk thickness) with solid C-clamps that hold everything tightly in place and are easily adjustable for user convenience
—Easy Installation: All hardware and instructions are provided for assembly, and mounting your keyboard tray to the desk is an easy process with the adjustable clamps. Please Note: This tray is not compatible with desktops that have beveled edges
Where it ranks
Same-type shortlists
Positions among standing desks & ergonomic office listings whose titles confirm the same product type, ordered by editorial score and then buyer rating. Budget positions use the recorded price ($69.99), which can change.
Alternatives are selected by recorded product-type relevance and price proximity. Confirm exact purpose and compatibility; a shared category does not guarantee interchangeability.
Product
Price
Rating
Ratings count
Our score
Compare
VIVO Clamp-on Keyboard and Mouse Tray, 34" x 11" Black (this one)
A dash means the value was not recorded, not that a feature is absent. Prices and ratings are captured snapshots; editorial scores are research assessments rather than measured performance.
Common questions
Can I use this on a glass desk?
No. Glass desks are generally not designed to withstand the concentrated pressure of C-clamps, which could cause the material to crack or shatter. This tray is designed primarily for use with wood or composite desk surfaces that can support a clamped load without surface degradation.
Does this tray include a wrist rest?
No, the package does not include a dedicated wrist rest. The platform is a flat steel surface. Users who require wrist support will need to purchase a separate foam or gel wrist rest and place it on the tray surface alongside their keyboard and mouse.
Will the tray slide smoothly over time?
The sliding mechanism depends on the tightness of the C-clamps. While it slides easily out of the box, over time, users may find that debris or clamp friction affects the glide. Occasional cleaning of the tracks or adjusting the clamp tension is recommended to maintain optimal performance.
Is the height of the tray adjustable?
The tray is fixed in its vertical position relative to the underside of the desk surface. The C-clamp mounting height is determined by the desk thickness, meaning the tray height cannot be adjusted up or down independently of the desk surface to accommodate different seating heights.
How we judge standing desks & ergonomic office
Rule 01
For standing desks, check the working-height range, desktop dimensions and exact-model stability evidence. A listed load capacity does not prove stability at your preferred height.
Rule 02
Compare the documented lift capacity with your desktop, monitors, arms and equipment. For converters and monitor arms, check the separate mounting and load requirements.
Rule 03
Read warranty terms for the frame, motor and electronics separately, including exclusions and parts support. Warranty length is not a measured durability result.
Sources and limits
This page summarizes our research reviews of Amazon listings, listed specifications and captured buyer ratings. It is not a hands-on test. Scores are editorial assessments, not measured performance; prices are recorded snapshots and may change. A category can include both main products and accessories, so its overall price range is not the cost of a complete setup.
Most recent product record update: November 8, 2026. Individual records may be older; this is not a verification date for every claim. Prices on this page were read from the listings Nov 10, 2026.
