Rail Depth Adapter Kit for Server Racks - 1U
Add flexibility to your rack by expanding or reducing the equipment mounting depth by 4 inches
Product ID: RDA1U
This depth adapter kit lets you extend or reduce the mounting depth of one rack unit (1U) in your server rack by up to four inches. If you're using the adapter kit in a two post installation the extenders can support a total weight load of 10 lbs. (4.5 kg). If you're using the adapter kit in a four post installation, the extenders can support a total weight load of 90 lbs. (40 kg), you can even use two sets of extender brackets in a four post installation and achieve the same weight capacity performance.
This TAA compliant product adheres to the requirements of the US Federal Trade Agreements Act (TAA), allowing government GSA Schedule purchases.
Mount equipment that's too long, or too short
You can use this adapter kit to mount equipment in your server rack that's up to four inches longer or shorter than the rack's mounting depth.
Save money by mounting all of your equipment in one rack
With this adapter kit, you can customize your server rack to support different mounting depths, so you have the freedom to mount equipment of different depths in the same rack. It’s a cost-saving, hassle-free way to consolidate your equipment into a single rack, so you have one server rack to manage instead of two.
Cable management flexibility
The depth adapter kit can also be used to help manage cables. You can mount equipment 4” in from the rails, to prevent cables from protruding from the rack. You can use the rail depth adapter to mount equipment that has high density cabling, such as patch panels, PDUs or network switches, to minimize the effects of cable strain and provide easier access to the cables.
The RDA1U is backed by a 2-year warranty and free lifetime technical support.
Mount equipment that's up to four inches longer or shorter than your server rack
Create mounting depth flexibility to improve cable management
|2-Post Weight Capacity||10 lbs. [2.5 kg]|
|4-Post Weight Capacity||90 lbs. [40 kg]|
|Product Height||0.8 in [21 mm]|
|Product Length||4 in [101 mm]|
|Product Weight||3.7 oz [104.6 g]|
|Product Width||1.8 in [45 mm]|
|Shipping (Package) Weight||5.2 oz [146.7 g]|
|What's in the Box|
|Included in Package||2 - depth-adapter brackets|
|4 - 10-32 x 5/8 screws|
|4 - 10-32 cage nuts|
|1 - instruction manual|
Frequently Asked Questions
Before You Buy
There’s a wide variety of accessories for server racks and today the various options will be explored. Here are the accessories that will be discussed.
- Rack rails and DIN rails
- Casters and leveling feet
- Cable management
- Rack blank panels
- Power Distribution Units (PDUs)
Server rack shelves come in a variety of sizes and styles. We will be covering six different types of server rack shelves.
Server rack shelves have both a U size and depth. The U size describes the height of the shelf in rack units, and one U is equal to 1.74 inches. Shelves might also list a maximum suggested weight and some shelves are available in a vented design for greater airflow.
Fixed shelves have a fixed depth. If you use a server rack with fixed shelves, make sure your rack equipment fits within the mounting depth of the shelf you are purchasing.
Unlike fixed shelves, you can adjust the depth of adjustable shelves. The minimum and maximum mounting depths for adjustable shelves are listed on the product page, under the Technical Specifications tab.
Sliding shelves can be slid in or out of a server rack. These shelves have a lock feature that locks the shelf and prevents it from accidentally falling out or sliding back into the server rack. The minimum and maximum mounting depths for sliding shelves are listed on the product page, under the Technical Specifications tab.
Similar to sliding shelves, drawer shelves feature a sliding storage drawer that is perfect for storing tools, small hardware or other accessories.
Cantilever shelves do not attach to the server rack on all 4 corners; instead, they only attach on one side of the server rack. These shelves generally have lower weight thresholds.
Heavy duty shelves are designed to hold more weight. They are a more durable solution for storing large pieces of equipment that can’t be mounted in a server rack.
Startech.com offers both rack rails and DIN rail kits.
Rack Rails are available in several different U sizes and are often adjustable, allowing you to customize the depth of your server equipment.
DIN Rails are an industry standard for server rack equipment, and StarTech.com offers a DIN Rail kit which fits all standard 19” racks. This kit features adjustable depth and the entire kit occupies 2 U’s of rack space. As with other server rack accessories, check on the product page under the Technical Specifications tab to make sure your equipment will fit within the product’s measurements.
Casters and levelling feet are two of the commonly used methods of mounting a rack on the floor. To determine whether your rack includes casters or levelling feet, on the product page, check the Technical Specifications tab, under the heading What’s in the Box.
Cable management accessories include cable management hooks, panels, and conduits or ducts. More information will be shared on them below.
Cable management hooks are designed to hold cabling to avoid cable knotting or crimping. They are also sometimes referred to as D-Ring hooks and can be found in a variety of sizes.
Cable management ducts or conduits are used to route cables through a covered cable duct. These ducts feature a removable top cover so that you can easily add or remove cables.
A cable management panel consists of several cable management hooks and/or ducts, combining these products for an all-in-one cabling solution.
Rack blanking panels are sometimes called filler panels as they are designed to fill the openings in server racks that are not in use. This provides security as well as physical protection for the equipment in the server rack. Rack blanking panels can be vented or solid and come with or without hinges.
Power distribution units or PDU’s add additional power outlets to your server rack. They are available in U based sizes, such as 1U and some of the more advanced units include power switching, which you can use to power on and off the connected devices over an IP network.
Confirm the number of outlets and the U size you need in your server rack PDU before you make a purchase.
There are a few ways you can find information about server rack accessories on www.StarTech.com.
- To view the different families of server rack accessories, go to the StarTech.com website. Under Server Management, click Server Rack Accessories. This opens a page with each family of server rack accessories.
- On individual product pages, you can view an image gallery which includes detailed pictures of the product.
- The Technical Specifications tab includes the product's dimensions, and what comes with the product.
- The Accessories tab lists other products that are confirmed to work with the product you are viewing.
If you have questions about any StarTech.com server rack accessories, contact our technical support team for further assistance.
When you install your rack equipment, it’s important to put the heaviest equipment on the bottom of the rack, first. This provides a strong base and is especially important if you are installing a lot of equipment on a tall rack. This also prevents the server rack from becoming top heavy and falling over.
If your equipment is long, heavy, unbalanced or otherwise difficult to handle, ask someone to help you install the equipment so you don’t injure yourself or damage the equipment.
Finally, when you tighten down your screws make sure you don’t strip or damage the screws. This is especially important to be aware of when using electric tools which can generate more torque.
The patch panel will be mounted using cage nuts, so the first step is to install them.
Once installed, the cage nuts can be used to mount our patch panel.
To install your server rack equipment, fasten the mounting screws into the cage nuts. After you tighten your screws, check to make sure your rack equipment is securely installed.
If you have questions about installing equipment into a server rack, contact our technical support team for further assistance.
Compliance and Safety
- If product has an exposed circuit board, do not touch the product under power.
- If Class 1 Laser Product. Laser radiation is present when the system is open.
- Wiring terminations should not be made with the product and/or electric lines under power.
- Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
- Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
* Product appearance and specifications are subject to change without notice.