Detail 01
6U capacity
Six rack spaces at 1.75 inches each, so about 10.5 inches of gear height total.
Product detailSKU #1292606661627
SKB6U Expander Case for R106/R104
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Independent shopping perspective
The Korena take
6U rack expander case that bolts onto an SKB R106 or R104 roto rack to add six rack spaces. For players outgrowing an existing rack.
Strong match
Who this is for
- Adding six rack spaces to an existing R106 or R104
- Growing a rack rig without buying a whole new case
- Splitting a heavy rack into two liftable halves
Consider the trade-offs
When to look elsewhere
- Anyone without an R106 or R104 to attach it to
- Players needing a standalone rack case with its own lid
- Small rigs of one or two rack units
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Expander design
It mates to a host case rather than standing alone. Without the R106 or R104 it is not a complete enclosure.
Detail 03
R106/R104 compatibility
The mounting interface is cut for those two SKB shells. Other brands and other SKB series will not mate.
Detail 04
Roto-molded shell
Molded plastic rather than plywood, so it survives impacts and van life better and weighs less than a wood rack.
Detail 05
Rack rail mounting
Gear bolts to threaded rails through the front ears. Rack screws hold the weight, so heavy amps need all four.
Final check
Know before you order
- 01Confirm your existing case is an R106 or R104 before ordering
- 02Rack screws and cage nuts are not always included — check before install day
- 03Adding 6U of gear pushes total rack weight past comfortable one-person lifting
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does this work on its own?
No. It is an expander that attaches to an SKB R106 or R104. On its own it is not a closed case.
02How much gear fits?
Six rack units, roughly 10.5 inches of front-panel height. A power conditioner and a rack head typically use three to four of those.
03Will it fit my SKB roto rack?
Only the R106 and R104. Other SKB rack series use different shell dimensions and mounting points.
04How deep is the rack space?
Depth varies by SKB roto rack series, so measure your deepest unit against the host case and confirm clearance before you commit.
