RSF1111BK21F4K3 1U Rackmount Keyboard Drawer with pull out mouse pad for 4 post cabinet from 18.85" to 31.16"

1U Rackmount Shelf
Model# Description Price Add to Cart
RSF1111BK21F4K3 1U Rackmount Keyboard Drawer with pull out mouse pad for 4 post cabinet. 4 Post Cabinet Depth from 18.85" to 31.16" Color: Black. $199.00 BUY

Fully customizable

The RSF1111BK21 rackmount keyboard drawer is the only keyboard drawer that is fully customizable according to your keyboard and mouse preference. Most of the keyboard drawers are either 1U or 2U in size depends on the type of keyboard you want to use. If you choose a 1U keyboard drawer, you will not be able to use standard profile keyboard. Choosing 2U keyboard drawer is not an option if rack space is limited.

This is where RSF1111BK21 distinguish itself from other keyboard drawer design.

13U Cabinet Install

It is also a shelf

RSF1111BK21 in the default 1U keyboard drawer configuration, it can support keyboard up to 1.25” in height and 16.28” in width. This configuration works with most of the compact low-profile keyboard with integrated trackball or touch pad mouse. In addition to the keyboard tray, RSF1111BK21 also comes with a fully functional mini shelf. The shelf features two oval cable access holes with plastic bushing cover for your VGA, HDMI, Display Port or USB Access cables. The shelf also has built in mounting holes for cable strap anchor brackets. This makes securing equipment on the shelf fast and easy.

One and half U

The keyboard tray has 3 mounting positions which can lower itself to accommodate keyboard up to 2.079” in height. This feature turns RSF1111BK21 in to a 1.5 U shelf. This adjustable feature opens up keyboard support options. Now you can use new TKL (Ten Key Less) full size gaming keyboard or Cherry POS Keyboard. Compares to 2U keyboard drawer, you achieve the same keyboard compatibility with 0.5U space saving.

Mouse Pad

You can use either right or left hand

Even with TKL keyboard, you still do not have access to mouse. RSF1111BK21 included a side and front configurable pull-out mouse pad. The pull-out mouse pad gives you space to use a wired or wireless mouse. This mouse pad can be setup for either right-hand or left-hand side operator. You can also remove it if you do not need it.

Safety First

In addition to adjustable rail position, RSF1111BK21 offers ball bearing sliding rail with build in stop tab safety feature. When keyboard drawer is pull out beyond 9.32”, the stop tab will engage and stops keyboard drawer from moving further. This also ensure keyboard drawer does not closed by itself while user is using it.

Stop Tab


  • Universal design works with any standard EIA-310 19 inch 2-post relay rack, or 4-post racks
  • Supports up to 16.28" wide keyboard
  • Supports keyboard up to 2.079" height
  • 3 different keyboard drawer rail mounting height
  • Adjustable Keyboard restrain brackets
  • Center Mount support for 2 Post Rack
  • Rearmount bracket adjustable from 14.82" to 31.16" depth
  • Heavy duty construction
  • Detachable Anchor system
  • Detachable Keyboard drawer
  • Keyboard drawer locked in place when fully extended
  • 16 Gauge (1.59mm) steel.
  • Slide out mouse pad.
  • Detachable mouse pad.
  • Mouse pad supports right hand or left hand side operator


1U to 1.5U depends on configuration
16.28" (413.64mm)
8.72" (221.50mm)
Retractable metal pad
Not Available
16 Gauge, 1.59mm
18.85" to 31.16"
1.75" x 15.02" x 18.86"
Black Powder Paint finish
65 lb @ 4 point mounting position, 40Lb @ center mount position
(1) RSF1111BK21F4K3, and (8) 10-32 screws.
20 LB
Limited 1 year warranty

Technical Document

Description Download
1 RSF1111BK21F4K3 Dimensional Drawing. PDF
2 RSF1111BK21F4K3 360 View. PDF
3 RSF1111BK21F4K3 Keyboard Size Requirement. PDF
4 RSF1111BK21F4K3 Installation Instruction. PDF
5 3D STEP and DWG files available upon request. Need major or minor modification? Call for detail.

Application Note