Product comparison · 2 keyboards

KeySonic ACK-540 keyboard USB QWERTY White vs KeySonic ACK-595 keyboard USB + PS/2 QWERTZ White

Key differences

Device interface
- ACK-540 keyboard USB QWERTY White:USB
- ACK-595 keyboard USB + PS/2 QWERTZ White:USB + PS/2
Keyboard layout
- ACK-540 keyboard USB QWERTY White:QWERTY
- ACK-595 keyboard USB + PS/2 QWERTZ White:QWERTZ
Keyboard number of keys
- ACK-540 keyboard USB QWERTY White:104
- ACK-595 keyboard USB + PS/2 QWERTZ White:88
Operating temperature (T-T)
- ACK-540 keyboard USB QWERTY White:0 - 55 °C
- ACK-595 keyboard USB + PS/2 QWERTZ White:0 - 50 °C
Storage temperature (T-T)
- ACK-540 keyboard USB QWERTY White:-20 - 65 °C
- ACK-595 keyboard USB + PS/2 QWERTZ White:-20 - 60 °C
Keyboard dimensions (WxDxH)
- ACK-540 keyboard USB QWERTY White:227 x 289 x 27 mm
- ACK-595 keyboard USB + PS/2 QWERTZ White:287 x 190 x 26 mm
Keyboard weight
- ACK-540 keyboard USB QWERTY White:720 g
- ACK-595 keyboard USB + PS/2 QWERTZ White:490 g

Differences highlightedShow differences only

Comparison of ACK-540, ACK-595
20 specifications	A KeySonic ACK-540 keyboard USB QWERTY White Model ACK-540 View product	B KeySonic ACK-595 keyboard USB + PS/2 QWERTZ White Model ACK-595 View product
Keyboard3 differ
Device interfaceDiffers	USB	USB + PS/2
Keyboard layoutDiffers	QWERTY	QWERTZ
Keyboard number of keysDiffers	104	88
CertificationKnown for one	FCC, CE	Unknown — not stated by the source
Featuresidentical
Cable lengthKnown for one	Unknown — not stated by the source	1.8 m
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 55 °C	0 - 50 °C
Storage temperature (T-T)Differs	-20 - 65 °C	-20 - 60 °C
Weight & dimensions2 differ
Keyboard dimensions (WxDxH)Differs	227 x 289 x 27 mm	287 x 190 x 26 mm
Keyboard weightDiffers	720 g	490 g
Packaging dataidentical
Package dimensions (WxDxH)Known for one	Unknown — not stated by the source	310 x 198 x 32 mm
Package weightKnown for one	Unknown — not stated by the source	610 g
Other featuresidentical
Compatible operating systemsKnown for one	Unknown — not stated by the source	Win 95 / 98 / ME / 2000 / XP / Vista

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.