VIVO Steel Dual Spacer Brackets for Under Desk Keyboard Tray - Lowers

In this review of the VIVO Steel Dual Spacer Brackets (MOUNT-SPACER01) the bottom line is simple: these brackets are for anyone who needs to lower a keyboard and mouse tray to a comfortable typing height when a desk frame leaves too little clearance. The reviewer found them to be a straightforward, heavy-duty solution that converts VIVO keyboard platforms or many third-party trays into a lower, more ergonomic position. They are not a full tray or drawer; they are a pair of steel spacer brackets that solve a single installation problem cleanly.

Key Features

• Spacer design: Lowers a compatible keyboard tray up to 3.2 in below the desk surface so users can type in a more ergonomic position.
• Steel construction: Solid steel build provides stability and a low profile that supports daily keyboard and mouse use without flex.
• Wide compatibility: Made for VIVO trays MOUNT-KB03B, MOUNT-KB04C, and MOUNT-KB01 and also fits many standard tray rails used by third-party platforms.
• Desk frame fit: Enables mounting around desk frames up to 3.2 in thick and is suitable for tabletops recommended between 23.5 and 29.5 in wide.
• Capacity: The sturdy brackets support up to 44 lbs, ample for a keyboard, mouse, and common desktop accessories.
• Warranty and support: Includes a limited 3-year manufacturer warranty and access to VIVO tech support for installation help.

Who It's For

These brackets are ideal for people with sit-stand or fixed desks where the frame or crossbar prevents mounting a keyboard tray at the desired height. Office workers, home office users, and anyone retrofitting an existing VIVO tray to a taller frame will appreciate the extra drop these spacers provide.

They are not for someone looking to add a keyboard tray where no compatible platform exists at all, since the product is brackets only and requires a compatible tray. Buyers who need adjustable-height mechanisms built into the tray itself should look for a full keyboard platform kit instead.

Pros & Cons

Pros

• Sturdy steel construction that feels stable and supports significant weight.
• Simple solution that works with VIVO trays and many standard tray rails from other brands.
• Includes hardware and clear instructions, with support available under the 3-year warranty.

Cons

• Installation can be fiddly for some users, especially on nonstandard desk frames.
• Height adjustment is fixed to the spacer drop, so it does not offer incremental height tuning after installation.

Specifications

Product type	Dual spacer brackets (brackets only)
Dimensions	7.5 x 1.8 x 3.2 in (per bracket)
Compatible trays	MOUNT-KB03B, MOUNT-KB04C, MOUNT-KB01 and many standard tray rails
Desk frame clearance	Fits frames up to 3.2 in thick
Recommended tabletop width	23.5 to 29.5 in
Weight capacity	Up to 44 lbs
Warranty	Limited 3-year manufacturer warranty

Our Verdict

The VIVO Steel Dual Spacer Brackets are a practical, cost-effective fix for anyone who needs to lower a compatible keyboard tray beneath a desk frame or on a tabletop. Their solid steel build and broad compatibility make them good value for users who already own a compatible VIVO tray or a common third-party rail; buyers seeking adjustable height tuning should consider a different accessory.

Frequently Asked Questions

Can these spacers be used with non-VIVO trays?
Yes, many customers report they fit standard tray rails and work with several third-party trays, though you should confirm rail spacing matches before purchase.

How much lower do these brackets drop the tray?
The spacers lower a compatible keyboard tray by up to 3.2 in below the desk surface.

Is the keyboard tray included?
No, this product is brackets only; the keyboard tray platform must be purchased separately if you do not already have one.