Overview
The Ergotron 98-678-629 Horizontal T-Slot VESA Mount is a mounting rail designed to attach behind a compatible workstation monitor. It creates a horizontal accessory channel for positioning compatible storage bins, shelves, scanner holders, and other workstation accessories behind the display.
This accessory is designed for compatible Ergotron LCD carts. By providing an additional mounting location behind the monitor, it helps organize frequently used equipment without requiring every accessory to occupy the main worksurface.
Mounting Interface and Accessory Support
The mounting assembly uses a VESA 100 × 100 mm interface and provides a horizontal T-slot rail for compatible accessories. Accessories designed for the corresponding T-slot system can be positioned along the rail according to the workstation layout and their individual mounting requirements.
The rail supports a maximum combined accessory load of 10 lb (4.5 kg), with a maximum of 5 lb (2.3 kg) on either side of its centerline. The total load includes the equipment and accessories attached to the rail.
Key Features
- Horizontal accessory rail: Provides a mounting channel behind the workstation monitor.
- VESA mounting interface: Uses a 100 × 100 mm mounting pattern.
- Distributed load capacity: Supports up to 10 lb (4.5 kg) in total, subject to the per-side limit.
- Accessory integration: Accommodates compatible T-slot accessories, including selected shelves, bins, and holders.
- Integrated cable management components: Includes a cable clip to help organize cables around the mounting assembly.
Compatibility and Installation
The Ergotron 98-678-629 is identified for compatible LCD carts. The mounting interface requires a VESA 100 × 100 mm hole pattern; a 75 × 75 mm mounting pattern is not supported by this interface.
Before installation, verify the cart model, monitor mounting configuration, available load capacity, and compatibility of the intended T-slot accessories. Follow the manufacturer's installation instructions to secure the assembly correctly.
Applications
This mounting rail can be used to organize accessories behind compatible mobile workstation displays. Depending on the selected T-slot accessories, possible configurations include mounting storage bins, shelves, scanner holders, and other supported equipment used in workstation workflows.
DC Supplies Product Note
Account for the weight of the rail and all attached accessories when checking the workstation's monitor-pivot capacity. The accessory assembly adds weight to the display mounting system and can reduce the remaining allowable load. Confirm both the rail's load limits and the cart manufacturer's limits before selecting accessories.
Specifications
| Brand | Ergotron |
|---|---|
| Part Number / MPN | 98-678-629 |
| Product Type | Horizontal T-slot VESA mounting rail |
| Product Category | Workstation mounting accessory |
| Mounting Interface | VESA |
| VESA Mounting Pattern | 100 × 100 mm |
| Rail Orientation | Horizontal |
| Accessory Interface | T-slot channel |
| Maximum Total Load Capacity | 10 lb (4.5 kg) |
| Maximum Load Per Side | 5 lb (2.3 kg) |
| Intended Platform | Compatible Ergotron LCD carts |
| Color | White and gray are listed in reseller product information; confirm the supplied finish when ordering. |
| Included Components | T-slot channel, end caps, interface cover, cable clip, and attachment hardware |
| Product Weight | 1.0 lb (approximately 0.45 kg) |
| UPC / GTIN | 00698833091090 |
| Manufacturer Warranty | Five years, subject to the manufacturer's terms and exclusions |
Frequently Asked Questions
What is the purpose of the Ergotron 98-678-629?
It adds a horizontal T-slot accessory rail behind a compatible workstation monitor, allowing supported accessories to be mounted behind the display.
Which VESA mounting pattern does it support?
The specified mounting interface uses a 100 × 100 mm VESA pattern. It does not support installation through a 75 × 75 mm hole pattern.
How much weight can the rail support?
The maximum combined load is 10 lb (4.5 kg), with no more than 5 lb (2.3 kg) on either side of the centerline. The workstation's remaining monitor-pivot capacity must also be considered.
Can accessories be moved along the rail?
Compatible T-slot accessories can be positioned along the horizontal channel according to their mounting design and the available space. Each accessory must be compatible with the rail and remain within the applicable load limits.
What comes with the mounting rail?
The listed components are the T-slot channel, end caps, interface cover, cable clip, and attachment hardware. Additional shelves, bins, holders, and other accessories should not be assumed to be included.
Will this mount fit any workstation cart?
Universal cart compatibility is not established. Verify the intended cart model, the 100 × 100 mm VESA interface, and the manufacturer's compatibility requirements before ordering.










