1U Adjustable Vented Server Rack Mount Shelf - 175lbs - 19.5 to 38in Adjustable Mounting Depth Universal Tray for 19" AV/ Network Equipment Rack - 27.5in Deep

Add a sturdy, adjustable depth shelf into almost any server rack or cabinet


2 stars (1 reviews) |
  • Low cost adjustable shelf for most 19 inch wide cabinets and racks
  • Adjustable mounting depth of 19" -38"
  • TAA compliant for GSA Schedule purchases
Your price
€146.99 EUR excl. VAT
€177.86 EUR incl. VAT

The ADJSHELF Adjustable Mounting Depth Rack Mount Shelf offers a simple way to effectively organize mission critical computer hardware in your server racks and cabinets.

Compatible with all 19in (wide) server racks/cabinets, the fixed rack shelf can be adjusted from 19in to 38in (mount depth) as necessary. A sturdy cold-rolled steel construction provides long term durability and enables a weight capacity of up to 175 lbs (80 kg).

Backed by a StarTech.com 2-year warranty.


  • For use with all 19" wide Server Racks and Cabinets
  • Supply additional storage space for mission critical hardware.

The StarTech.com Advantage

  • Adjustable and sturdy design allows up to 175lbs of equipment to be stored on a single 1U shelf
  • Rugged steel construction for durability in harsh environments

Partner Numbers

  • Ingram Micro España V930884
  • Esprinet ADJSHELF
  • UPC 065030826358


Warranty Information Warranty Lifetime
Hardware Cable Management No
U Height 1U
Packaging Information Package Height 6.5 cm [2.6 in]
Package Length 73.0 cm [28.7 in]
Shipping (Package) Weight 5.5 kg [12.2 lb]
Package Width 52.0 cm [20.5 in]
Performance Weight Capacity (Stationary) 80 kg [176.8 lb]
Physical Characteristics Weight of Product 4.4 kg [9.8 lb]
Color Black
Internal Width 44.6 cm [17.6 in]
Internal Height 40 mm [1.6 in]
Internal Depth 70 cm [27.6 in]
Product Length 97.4 cm [38.3 in]
Product Width 44.5 cm [17.5 in]
Product Height 4.0 cm [1.6 in]
Maximum Mounting Depth 97.4 cm [38.3 in]
Minimum Mounting Depth 49.5 cm [19.5 in]
Special Notes / Requirements Note Depth adjustable from 19-38"
What's in the Box 1 - Included in Package slotted fixed shelf
instruction manual
2 - Included in Package front mounting brackets
rear mounting brackets
8 - Included in Package M5 screws
M5 cage nuts
M5 flanged lock nuts
M5 truss head screws



50 Pkg M5 Cage Nuts for Server Rack Cabinets

Mount server, telecom and A/V equipment with these high quality nuts

Your price
€23.99 EUR excl. VAT
€29.03 EUR incl. VAT

50 Pkg M5 Mounting Screws for Server Rack Cabinet

Mount server, telecom and A/V equipment with these high quality screws

Your price
€34.99 EUR excl. VAT
€42.34 EUR incl. VAT


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Product Support

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We are always ready to assist you with any questions you may have.

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Frequently Asked Questions


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. 

Before You Buy

If a server rack accessory is listed on a server rack's product page under the Accessories tab, it will fit in the server rack.

Server racks offered by StarTech.com have an industry standard width of 19 inches, but can have varying height and depth. The mounting depth is important when you choose a shelf to be used as an accessory. Shelves that mount on all four corners of a server rack, such as 4-post server racks and cabinet server racks, will all have a maximum mounting depth.  Many of these server racks and shelves are adjustable, which means that there will be a minimum and maximum mounting depth. This information can be found on individual product pages under the Technical Specifications tab. It is important that the depth of the shelf is compatible with the server rack's minimum and maximum mounting depths so that it can be mounted. If a shelf only mounts on the front on a server rack, the mounting depth is not relevant as long as there is enough clearance behind the mounting point to accommodate the full depth of the shelf.

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.

  • Shelves
  • 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. 

Compliance and safety

Compliance letters

Safety Measures

  • 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.

Customer Reviews

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1 - 1 of 1 Reviews
(2 Stars)

19" rack compatibility is questionable

By: uhnomoli - 04/14/2020
While it might be true that this shelf is compatible with all 19" racks, it certainly wasn't easy. I just finished installing this shelf into a new empty rack (a StarTech no less, 4POSTRACK25U) and installation was a nightmare. I should've read reviews first, because after it seemed like this shelf wasn't going to fit, I found a review with better instructions than the ones that came with it. The manual has you attach the ears to the shelf first and then mount it in the rack. However, the ears make it just too wide to fit into a 19" rack. Instead, as suggested in the review I found, I had better luck mounting the ears to the rack first, and then sliding the shelf in. It was still a very tight fit and required more force than seemed intended to get it into place. Now installed, the shelf seems very sturdy and will function as described. Was almost comical how much easier it was installing some ReadyRails and a server immediately afterwards. Not exactly a fair comparison, but I imagine there's room for improvement. For the price, as well as the fact I was working with a StarTech rack, I expected a much easier installation and not have to go digging around in reviews to figure out a solution. I would not recommend this shelf to anyone unless it could be acquired at a significant discount.
| Helpful?
Matt, Customer Support on 4/17/2020 4:39:17 PM
It's important to us that our customers have a positive experience with our products and we're sorry to hear about the difficulties you had installing our ADJSHELF. We are always looking for ways to improve our products and we appreciate the feedback. We'd also like to announce that we're working on updating manuals and products to make installation easier. If you require any assistance or have any more feedback, please do not hesitate to contact us at www.startech.com/support where our Technical Advisors are available 24 hours a day, 5 days a week.
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