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1U server rack depth extender adapter kit
A steel 1U rack depth adapter kit that lets you extend or reduce equipment mounting depth by up to 4 in (10 cm), with support for both two-post and four-post installations.

Key capabilities
Adjust rack depth
Extends or reduces the mounting depth of the rack position by up to 4 in (10 cm).
Two-post installation
Supports a total equipment load up to 10 lb [2.5 kg] when used in a two-post installation.
Four-post installation
Supports a total equipment load up to 90 lb [40 kg] when used in a four-post installation.
Rack installation hardware
Includes two depth-adapter brackets, four 10-32 screws, four 10-32 cage nuts and an instruction manual.
What to know before buying
This adapter changes the effective mounting depth for 1U of rack space; it does not add rack units. Confirm the equipment load, rack-post arrangement and required 4 in (10 cm) offset before installation.
Australian version and manufacturer warranty
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com 2-year manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase. Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment.
Frequently asked questions
What does the StarTech RDA1U rack extender do?
How much rack space does this adapter use?
What is the two-post weight capacity?
What is the four-post weight capacity?
How far can it change the mounting depth?
What material and colour are the brackets?
What comes in the package?
What warranty applies to the StarTech RDA1U in Australia?
(RDA1U)
Features and highlights
Adjust rack depth
Extends or reduces the mounting depth of the rack position by up to 4 in (10 cm).
Two-post installation
Supports a total equipment load up to 10 lb [2.5 kg] when used in a two-post installation.
Four-post installation
Supports a total equipment load up to 90 lb [40 kg] when used in a four-post installation.
Rack installation hardware
Includes two depth-adapter brackets, four 10-32 screws, four 10-32 cage nuts and an instruction manual.
- 1U
- 4 in / 10 cm adjustment
- 2-post: 10 lb [2.5 kg]
- 2-year warranty
Specifications
Verified specifications for StarTech RDA1U.

Hardware
| Warranty | 2 Years |
|---|---|
| U Height | 1U |
| Mounting hole type | Square (For Cage Nut) |
| Cable Management | No |
| Material | Steel |
| Colour | Black |
Performance
| Depth adjustment | Up to 4 in [10 cm] longer or shorter |
|---|---|
| 2-Post Weight Capacity | 10 lb [2.5 kg] |
| 4-Post Weight Capacity | 90 lb [40 kg] |
Physical Characteristics
| Product length | 4.0 in [10.1 cm] |
|---|---|
| Product width | 1.8 in [4.5 cm] |
| Product height | 0.8 in [2.1 cm] |
| Weight of product | 3.7 oz [104.6 g] |
Packaging Information
| Package quantity | 1 |
|---|---|
| Package length | 8.7 in [22.0 cm] |
| Package width | 4.9 in [12.5 cm] |
| Package height | 0.8 in [2.0 cm] |
| Shipping weight | 5.2 oz [146.7 g] |
What's in the Box
| Depth-adapter brackets | 2 |
|---|---|
| 10-32 x 5/8 screws | 4 |
| 10-32 cage nuts | 4 |
| Instruction manual | 1 |
| SKU | RDA1U |
| Barcode # | 65030865432 |
| Brand | STARTECH |
| Shipping Weight | 0.2000kg |
| Shipping Width | 0.100m |
| Shipping Height | 0.050m |
| Shipping Length | 0.180m |
| Shipping Cubic | 0.000900000m3 |
StarTech.com warranty in Australia
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com 2-year manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase.
Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment. This wording does not promise automatic replacement or guaranteed claim approval.
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