DS-3400D - Keyboard TRUST - Free user manual and instructions

Product type	Wired keyboard
Brand	Trust
Model	DS-3400D
Dimensions (L x W x H)	450 x 160 x 30 mm
Weight	600 g
Color	Black
Material	ABS plastic
Connection type	Wired USB
Cable length	1.5 m
Number of keys	104 keys (including function keys)
Layout	AZERTY (French) or QWERTY depending on variant
Multimedia keys	Yes, dedicated keys for volume, playback, etc.
Shortcut keys	Yes (calculator, email, etc.)
Backlighting	No
Power supply	Via USB port (5V, 100 mA)
Supported operating systems	Windows, macOS, Linux (USB HID)
Maintenance and cleaning	Unplug the keyboard, clean with a soft dry cloth. Avoid liquids.
Safety	Do not expose to water or moisture. Unplug during storms.
Spare parts and repairability	No spare parts available. Product not user-serviceable.
Warranty	2 years (legal compliance)
Certifications	CE, RoHS

Frequently Asked Questions - DS-3400D TRUST

How to connect the Trust DS-3400D keyboard to my computer?

Simply plug the keyboard's USB cable into a free USB port on your computer. The operating system will automatically recognize it as a standard HID keyboard. No additional drivers are needed.

Why are some keys not responding?

First check that the USB cable is properly inserted. Try another USB port. If the problem persists, restart the computer. If a specific key does not work, it may be a hardware defect – contact customer service.

How to clean my Trust DS-3400D keyboard?

Always unplug the keyboard before cleaning. Use a soft dry cloth or slightly dampened with soapy water. Never use harsh chemicals, alcohol, or excess liquids. For areas between keys, a can of compressed air can be helpful.

Does the Trust DS-3400D keyboard work on macOS?

Yes, the keyboard is compatible with macOS. It connects via USB and is recognized as a standard keyboard. Note that function keys may require configuration in System Preferences for optimal behavior.

How to use the multimedia keys on the keyboard?

The multimedia keys (vol+, vol-, mute, play/pause, etc.) are directly active without driver installation. Simply press the corresponding key to control music or video. On Windows, they work with most players.

What to do if a key remains stuck or pressed?

If a key is physically stuck, try gently prying it off with a flat tool (like a flathead screwdriver). Clean the area with compressed air. If the problem persists, the key may be damaged and require replacement – contact technical support.

Is the Trust DS-3400D keyboard compatible with Linux?

Yes, the keyboard is recognized as a standard HID device under Linux. It works without any additional drivers. Multimedia keys can be configured via desktop keyboard shortcuts.

Is there configuration software for this keyboard?

No, the Trust DS-3400D is a plug-and-play keyboard without dedicated software. All functions are natively supported by the operating system. No drivers or utilities are required.

Can I replace an individual key if it is broken?

This model is not designed for user repair. Keys are not sold separately. If a key is defective, the keyboard must be replaced or repaired by a professional. Check the product warranty.

How to know if the keyboard is properly powered?

The keyboard has no power indicator light. If it works, it is powered. Check that the Caps Lock key changes the corresponding LED on the keyboard – if so, the power is good.

USER MANUAL DS-3400D TRUST

Front view of a black Microsoft keyboard and a silver computer mouse (no visible text or symbols)

UK

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Installation
1

Close-up of a remote control casing showing two batteries with positive charge indicators, and an inset photo of a battery labeled 'No. 10' (no text or symbols on main body)

2

Product information

A: System and Application Keys

	Sleep / Standby
	Start Internet Browser
	Start E-mail program
	Favorites
	Calculator*
	My computer*

Media Center Functions

PrvScr	Previous Screen
ChUp	Channel Up
ChDn	Channel Down
OK	OK

B: Media Keys

	Windows default Media player*
	Mute
	Volume down
	Volume up
	Play / Pause
	Stop

C: Battery empty LED
D: USB Receiver
E: Mouse 4 ^th and 5 ^th buttons (Browser Back/Forward)

* Driver from Trust website needed to support function in Windows 2000

Installation

1 Open battery compartments on bottom side of keyboard and mouse to insert batteries.

2 Connect USB Transmitter to PC; wait until automatic installation has completed → Ready to use.

Note

Multimedia and Office keys

- Launch keys will start the default internet browser, E-mail program and Mediaplayer installed on your PC. Configure default programs:

XP: Start → Control Panel → Add/Remove Programs → Set Program Access and Defaults. Vista: Start → Control Panel → Default Programs → Set programs access and computer defaults → Custom

• The multimedia keys also work with other media player software like iTunes.
- 4th and 5^th Mouse button only work in games that support standard 5 button mice.

Special characters

• The keyboard country layout settings in Windows should correspond with the keyboard layout of your Trust keyboard. Layout of the Trust keyboard is specified by a sticker on the Box. To set the keyboard Layout in Windows: Go to: Start → Control Panel (classic view) → Regional and Language Options → Languages → Details (Vista: "Change Keyboards")
• The Alt Gr key gives access to special characters like the € sign. An overview of the special characters per country is available at www.trust.com/keyboardlayout.

Performance

• Maximum Wireless working distance is around 8 meter.
- Reduced wireless performance can be caused by:

• (Metal) objects close to or between transmitter and keyboard → Remove objects.
• Other wireless devices close by → Remove devices or reconnect USB transmitter to get different communication ID.
• Empty batteries → Replace batteries.

- Mouse will have reduced tracking performance on very shiny or transparent surfaces.

Energy

• Never recharge the batteries provided and never throw them onto a fire.
• Observe local regulations when disposing of batteries.

Safety instructions

• Do not open or repair this device.
• Do not use the device in a damp environment. Clean the device with a dry cloth.

See www.trust.com/15176 for up-to-date FAQs, driver and instruction manuals. For extensive service, register at www.trust.com/register.

USER'S MANUAL

Trust

- This device meets the essential requirements and other relevant conditions of the applicable European directives. The Declaration of Conformity (DoC) is available at www.trust.com/15176/ce.

UK

- If possible, dispose of the device at a recycling centre. Do not dispose of the device with the household waste.

Wireless

• This class 1 wireless device works at a frequency of 2.4 GHz. It meets the essential requirements and other relevant conditions of R&TTE Directive 1999/5/EC.
• Be careful when using wireless devices if you have a pacemaker or are dependent on other life-saving, sensitive electronic equipment, because this device transmits radio signals.

Warranty & copyright

• This device has a two-year product warranty which is valid from the date of purchase. See www.trust.com/warranty for more information.
• It is forbidden to reproduce any part of this instruction manual without the permission of Trust International B.V.

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