ARMUNONB - Rack Mount StarTech.com - Free user manual and instructions

Product Type	Rack Mount Shelf
Brand	StarTech.com
Model	ARMUNONB
Form Factor	1U, 19" Rack
Dimensions (W x D x H)	19 x 6.5 x 1.75 in (48.3 x 16.5 x 4.4 cm)
Weight	2.5 lbs (1.1 kg)
Material	Cold Rolled Steel
Finish	Black Powder Coat
Maximum Load Capacity	25 lbs (11.3 kg)
Mounting Hardware	Included (screws, cage nuts)
Compatibility	Standard 19" EIA-310 Racks
Ventilation	Open front and rear for airflow
Installation	Tool-less or screw mount
Cable Management	Not integrated, but compatible
Power Requirements	None (passive shelf)
Operating Temperature	32°F to 122°F (0°C to 50°C)
Storage Temperature	-4°F to 158°F (-20°C to 70°C)
Humidity Range	20% to 80% (non-condensing)
Certifications	RoHS, CE, FCC
Warranty	2 Years
Maintenance	Wipe with dry cloth; avoid liquids
Safety	Ensure load is within capacity; secure to rack
Repairability	No user-serviceable parts; replace if damaged
Included Accessories	Mounting screws, cage nuts, quick-start guide

Frequently Asked Questions - ARMUNONB StarTech.com

What is the weight capacity of the ARMUNONB?

The maximum load capacity is 25 lbs (11.3 kg) distributed evenly.

What type of rack is the ARMUNONB compatible with?

It fits standard 19-inch EIA-310 racks with square or threaded holes.

Does the shelf come with mounting hardware?

Yes, it includes screws and cage nuts for easy installation.

Is the shelf ventilated?

The open front and rear design allows passive airflow to keep equipment cool.

Can the shelf be mounted without tools?

It supports both tool-less and screw mount depending on your rack type.

What is the depth of the shelf?

The depth is 6.5 inches (16.5 cm), making it a short-depth shelf.

Is the ARMUNONB suitable for heavy servers?

It is designed for lighter equipment such as switches or patch panels; heavy servers may exceed the weight limit.

How do I clean the shelf?

Wipe with a dry cloth. Avoid liquids or abrasive cleaners.

What is the warranty period?

StarTech.com offers a 2-year warranty against defects.

Can I mount the shelf in a non-19-inch rack?

No, it is specifically designed for standard 19-inch racks and may not fit other sizes.

USER MANUAL ARMUNONB StarTech.com

Monitor Mount with Articulating Arm and Laptop Riser

Laptop with dual monitors mounted on a stand, accompanied by a keyboard and mouse (no text or symbols visible)

Actual product may vary from photos

User Manual

SKU#: ARMUNONB

For the latest information and specifications visit

www.startech.com/ARMUNONB

Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols

This manual may make reference to trademarks, registered trademarks, and other protected names and/or symbols of third-party companies not related in any way to StarTech.com. Where they occur these references are for illustrative purposes only and do not represent an endorsement of a product or service by StarTech.com, or an endorsement of the product(s) to which this manual applies by the third-party company in question. Regardless of any direct acknowledgement elsewhere in the body of this document, StarTech.com hereby acknowledges that all trademarks, registered trademarks, service marks, and other protected names and/or symbols contained in this manual and related documents are the property of their respective holders.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Safety Statements

Safety Measures

• Wiring terminations should not be made with the product and/or electric lines under power.
• Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.

Mesures de sécurité

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Table of Contents

Safety Statements....2

Product Diagram....4

Product Dimensions ....5

Technical Specifications....6

Product Information 8

Package Contents 8

Installation Requirements....11

Assembly 11

Attaching the Clamp to a Surface....11

Attaching the Laptop Tray to the Swivel Arm....12

Attaching the Swivel Arm to the Pole and Clamp....14

Attaching the Extension Arm 16

Attach a display to the spring arm....17

Attaching the Spring Arm to the Extension Arm....19

Adjust the height tension of the spring arm....21

Adjusting the Swivel Tension of the Display Mount 22

Routing the Cables 22

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Product Diagram

1	Rubber Pads Cable Management
2	Laptop Tray Pole
3	Extension Arm Height-Adjustment Ring
4	Swivel Arm Cable-Management Clip
5	Monitor Mount

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Product Dimensions

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Technical Specifications

Type of Measurement Measurement
Display Size	15 to 27 in.(381 mm to 686 mm)
Monitor Mount Weight Capacity	Up to 17.6 lb. (8 kg)
Laptop Tray Weight Capacity	Up to 17.6 lb. (8 kg)
Tilt	-90° to + 85°
Swivel	180°
Rotate	360°
VESA Monitor Mount	75 x 75 mm100 x 100 mm

Product Information

Package Contents

Technical line drawing of a mechanical shaft assembly (no text or symbols)

Swivel Arm

Qty: One

Line drawing of a curved mechanical lever or handle (no text or symbols)

Extension Arm

Qty: One

Simple line drawing of a symmetrical abstract shape with two central oval shapes and four surrounding dots (no text or symbols)

Laptop Tray

Qty: One

Technical line drawing of a mechanical arm with mounting flanges (no text or symbols)

Spring Arm

Qty: One

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Pole and ClampQty: One	M4x12 ScrewsQty: Four
M4x30 ScrewsQty: Four	M5x12 ScrewsQty: Four
M6x25 ScrewQty: One	Cable-Management ClipQty: One

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

[YYYY]M3 Hex Key M5 Hex Key
M5 NutsQty: Four	Height- Adjustment RingQty: One
SpacersQty: Four	Cable-Management ClipQty: Two

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Solid gray rectangle with black border (no text or symbols)

Rubber Pads

Qty: Four

Simple line drawing of a curved, layered object resembling a hat or cap (no text or symbols)

Plastic Cap

Qty: One

Installation Requirements

• Phillips Head Screwdriver
- Adjustable Wrench

Assembly

Warning: Make sure to assemble the ARMUNONB according to the following instructions. Failure to do so may result in personal injury or property damage.

If you exceed the weight capacity of the monitor mount or the laptop tray, the ARMUNONB may not work as expected and you could experience personal injury or property damage.

Never operate the ARMUNONB if parts are missing or damaged.

Attaching the Clamp to a Surface

Note: The desk clamp can be attached to a desk or table up to a thickness of 9 cm 90 mm).

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

1. Turn the clamping knob on the pole and clamp (5) counterclockwise until the clamp can slide over the edge of the desk or table.
2. Slide the pole and clamp all the way onto the desk or table.
3. To tighten the clamp, turn the clamping knob clockwise until the clamp is securely fastened to the desk.

Diagram showing three stages of a mechanical device with blue arrows indicating motion, no text or symbols present.

Attaching the Clamp to a Surface

Attaching the Laptop Tray to the Swivel Arm

1. Insert the four M5x12 screws through the laptop tray and into the four holes in the VESA mount on the swivel arm.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

1. Thread the four M5 nuts onto the M5x12 screws.

Technical line drawing of a mechanical assembly with mounting holes and structural components (no text or symbols)

Thread the Four M5 Nuts onto the M5x12 Screws

1. Use a wrench to tighten the M5 nuts.
2. Remove the backing from the four rubber pads and affix them to the laptop tray where appropriate to prevent the laptop from slipping.

Technical line drawing of a mechanical assembly with no visible text or symbols

Fixing the Rubber Pads on the Laptop Tray

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Attaching the Swivel Arm to the Pole and Clamp

1. Turn the adjustable collar on the height-adjustment ring counterclockwise and pull the height-adjustment ring off of the pole and clamp.

Simple line drawing of a vertical pole with an upward arrow, mounted on a flat surface (no text or symbols)

Pulling the Height-Adjustment Ring off of the Pole

1. Slide the swivel arm down the pole and clamp.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Diagram showing a mechanical assembly with a downward arrow indicating force or displacement (no text or symbols present)

Sliding the Swivel Arm

1. Once the swivel arm is at the desired height, use the M5 hex key to turn the screw in the swivel arm clockwise to tighten it in place.

Technical line drawing of a mechanical assembly with a magnified inset showing a component detail (no text or symbols)

Use the M5 Hex Key to Tighten the Screw

4.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Attaching the Extension Arm

1. Slide the height-adjustment ring down the pole and clamp until it's at the height that you want the extension arm to sit at.
2. Turn the adjustable collar on the height-adjustment ring clockwise to tighten it in place.
3. Slide the extension arm down the pole until it's sitting on the height-adjustment ring.

Technical diagram showing a mechanical assembly with a downward arrow indicating a process or transformation (no text or symbols present)

Sliding the Extension Down the Pole

1. To adjust the swivel tension of the extension arm, use the M3 hex key to turn the screws in the extension arm clockwise or counterclockwise.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Technical line drawing of a mechanical assembly with an inset showing a close-up of a component (no text or symbols present)

Adjusting the Swivel Tension

Attach a display to the spring arm

Caution! To prevent scratching, you should handle the surface of the display with care when you attach it to the spring arm.

If you exceed the weight capacity of the mount, the ARMU-NONB may not work as expected and you could experience personal injury or property damage.

1. If the VESA mount sits flush against the installation surface on the display, insert the four M4x12 screws through the VESA mount on the spring arm and into the mounting holes on the back of the display.
2. Use a Phillips screwdriver to tighten the screws.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Technical line drawing of a robotic arm interacting with a mechanical component (no text or symbols)

Mounting the VESA Mount Flush Against a Monitor

1. If the VESA mount doesn't sit flush against the installation surface on the display, you need to use the provided spacers. Insert the four M4x30 screws through the VESA mount on the spring arm, into the four spacers, and into the mounting holes on the back of the display.

2. Use a Phillips screwdriver to tighten the screws.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Technical line drawing of a mechanical assembly with no visible text or symbols

Mounting the VESA Mount Using Spacers

Attaching the Spring Arm to the Extension Arm

1. Carefully lift the spring arm with the display attached and place it onto the extension arm.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Diagram showing a mechanical assembly with a monitor mounted on a stand and a curved arm, no text or symbols present.

Placing the Monitor on the Extension Arm

1. Insert the M6x25 screw through the extension arm, the spring arm, and into the plastic cap.

Technical line drawing of a mechanical assembly with a tool and pivot point (no text or symbols)

Attaching the Plastic Cap

1. Use a screwdriver to tighten the M6x25 screw.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Adjust the height tension of the spring arm

1. You can adjust the height tension of the spring arm to make sure that the display stays in place, regardless of the weight of the display.

2. If the display doesn't stay in place or the movement is stiff, do one of the following:

• To increase the tension, use the M5 Allen key to turn the screw in the spring arm clockwise.

• To decrease the tension, use the M5 Allen key to turn the screw in the spring arm counterclockwise.

Diagram of a desktop computer setup with a monitor and arm, showing a scroll wheel mechanism (no text or symbols present)

Adjusting the Height Tension

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Adjusting the Swivel Tension of the Display Mount

- To adjust the swivel tension of the display mount, use the M5 Allen key (12) to turn the screw on the top of the VESA mount clockwise or counterclockwise.

Mechanical assembly diagram showing a lever mechanism with rotating arrows (no text or symbols)

Adjusting the Swivel Tension

Routing the Cables

Warning: Make sure that you leave enough slack at the arm joints so that the arms can be fully extended.

Make sure that the cables that you're routing are unplugged before you complete the following steps.

1. Pull out the cable rungs on the spring arm and thread the display cable through the rungs.
2. Thread the display cable through the cavity in the underside of the extension arm.
3. Hold the display cable against the pole and clamp while you slide the cable-management clip (pole) over the cable and onto the pole.

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

1. Snap the cable-management clip (laptop arm) onto the swivel arm.

2. Run the laptop power cable along the swivel arm and through the hook in the cable-management clip (laptop arm).

3. To adjust the placement of cable-management clip (laptop arm) on the swivel arm, slide the cable-management clip left or right.

Diagram of a desktop computer setup with monitor, tower, and cable, showing wiring connections (no text or symbols)

Routing the Cables

To view manuals, videos, drivers, downloads, technical drawings, and more visit www.startech.com/support

Warranty Information

This product is backed by a five-year warranty.

For further information on product warranty terms and conditions, please refer to www.startech.com/warranty.

Limitation of Liability

In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their officers, directors, employees or agents) for any damages (whether direct or indirect, special, punitive, incidental, consequential, or otherwise), loss of profits, loss of business, or any pecuniary loss, arising out of or related to the use of the product exceed the actual price paid for the product.

Some states do not allow the exclusion or limitation of incidental or consequential damages. If such laws apply, the limitations or exclusions contained in this statement may not apply to you.

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StarTech.com is your one-stop source for every connectivity part you need. From the latest technology to legacy products — and all the parts that bridge the old and new — we can help you find the parts that connect your solutions.

We make it easy to locate the parts, and we quickly deliver them wherever they need to go. Just talk to one of our tech advisors or visit our website. You'll be connected to the products you need in no time.

Visit www.startech.com for complete information on all StarTech.com products and to access exclusive resources and time-saving tools.

StarTech.com is an ISO 9001 Registered manufacturer of connectivity and technology parts. StarTech.com was founded in 1985 and has operations in the United States, Canada, the United Kingdom and Taiwan servicing a worldwide market.

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