Product comparison · 2 keyboards

KeySonic ACK-109BL keyboard USB + PS/2 QWERTZ Blue vs KeySonic ACK-540 keyboard USB QWERTY White

Key differences

Device interface
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:USB + PS/2
- ACK-540 keyboard USB QWERTY White:USB
Keyboard layout
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:QWERTZ
- ACK-540 keyboard USB QWERTY White:QWERTY
Keyboard number of keys
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:105
- ACK-540 keyboard USB QWERTY White:104
Product colour
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:Blue
- ACK-540 keyboard USB QWERTY White:White
Operating temperature (T-T)
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:0 - 60 °C
- ACK-540 keyboard USB QWERTY White:0 - 55 °C
Storage temperature (T-T)
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:-20 - 80 °C
- ACK-540 keyboard USB QWERTY White:-20 - 65 °C
Operating relative humidity (H-H)
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:10 - 100%
- ACK-540 keyboard USB QWERTY White:10 - 95%
Keyboard dimensions (WxDxH)
- ACK-109BL keyboard USB + PS/2 QWERTZ Blue:490 x 137 x 15 mm
- ACK-540 keyboard USB QWERTY White:227 x 289 x 27 mm

Differences highlightedShow differences only

Comparison of ACK-109BL, ACK-540
20 specifications	A KeySonic ACK-109BL keyboard USB + PS/2 QWERTZ Blue Model ACK-109BL View product	B KeySonic ACK-540 keyboard USB QWERTY White Model ACK-540 View product
Keyboard3 differ
Device interfaceDiffers	USB + PS/2	USB
Keyboard layoutDiffers	QWERTZ	QWERTY
Keyboard number of keysDiffers	105	104
CertificationKnown for one	Unknown — not stated by the source	FCC, CE
Design1 differ
Product colourDiffers	Blue	White
Featuresidentical
Cable lengthKnown for one	1.5 m	Unknown — not stated by the source
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 60 °C	0 - 55 °C
Storage temperature (T-T)Differs	-20 - 80 °C	-20 - 65 °C
Operating relative humidity (H-H)Differs	10 - 100%	10 - 95%
Weight & dimensions2 differ
Keyboard dimensions (WxDxH)Differs	490 x 137 x 15 mm	227 x 289 x 27 mm
Keyboard weightDiffers	320 g	720 g
Packaging dataidentical
Package dimensions (WxDxH)Known for one	500 x 154 x 39 mm	Unknown — not stated by the source
Package weightKnown for one	490 g	Unknown — not stated by the source
Other featuresidentical
Compatible operating systemsKnown for one	Win 95 / 98 / NT / ME / 2000 / XP / Vista	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.