Product comparison · 2 keyboards

Trust BlackStream Keyboard vs Trust Wireless Optical Deskset DS-3400D CH

Key differences

Connectivity technology
- BlackStream Keyboard:Wired
- Wireless Optical Deskset DS-3400D CH:Wireless
Device interface
- BlackStream Keyboard:USB
- Wireless Optical Deskset DS-3400D CH:RF Wireless
Mouse included
- BlackStream Keyboard:No
- Wireless Optical Deskset DS-3400D CH:Yes
Compatible operating systems
- BlackStream Keyboard:Windows Vista, XP
- Wireless Optical Deskset DS-3400D CH:Windows Vista/XP

Differences highlightedShow differences only

Comparison of BlackStream Keyboard, Wireless Optical Deskset DS-3400D CH
17 specifications	A Trust BlackStream Keyboard View product	B Trust Wireless Optical Deskset DS-3400D CH View product
Keyboard2 differ
Connectivity technologyDiffers	Wired	Wireless
Device interfaceDiffers	USB	RF Wireless
Keyboard layout	QWERTY	QWERTY
Frequency bandKnown for one	Unknown — not stated by the source	2.4 GHz
Designidentical
Product colour	Black	Black
Featuresidentical
Wireless rangeKnown for one	Unknown — not stated by the source	8 m
Mouse1 differ
Mouse includedDiffers	No	Yes
Movement detection technologyKnown for one	Unknown — not stated by the source	Optical
Buttons quantityKnown for one	Unknown — not stated by the source	5
ScrollKnown for one	Unknown — not stated by the source	Yes
Other features1 differ
Compatible operating systemsDiffers	Windows Vista, XP	Windows Vista/XP
Internal	No	No
Keyboard function keysKnown for one	Unknown — not stated by the source	12
ContentsKnown for one	Keyboard. User's guide.	Unknown — not stated by the source
System requirementsidentical
Mac operating systems supportedKnown for one	No	Unknown — not stated by the source
Minimum system requirementsKnown for one	Windows Vista or XP. USB port.	Unknown — not stated by the source
Packaging dataidentical
Package dimensions (WxDxH)Known for one	205 x 495 x 45 mm	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.