Product comparison · 2 keyboards

KeySonic ACK-540 keyboard USB QWERTY White vs Lenovo USB Smartcard Keyboard (Italy)

Key differences

Product colour
- ACK-540 keyboard USB QWERTY White:White
- USB Smartcard Keyboard (Italy):Black
Keyboard dimensions (WxDxH)
- ACK-540 keyboard USB QWERTY White:227 x 289 x 27 mm
- USB Smartcard Keyboard (Italy):457.13 x 185.3 x 35 mm

Differences highlightedShow differences only

Comparison of ACK-540, USB Smartcard Keyboard (Italy)
17 specifications	A KeySonic ACK-540 keyboard USB QWERTY White Model ACK-540 View product	B Lenovo USB Smartcard Keyboard (Italy)View product
Keyboardidentical
Keyboard number of keysKnown for one	104	Unknown — not stated by the source
CertificationKnown for one	FCC, CE	Unknown — not stated by the source
Design1 differ
Product colourDiffers	White	Black
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Featuresidentical
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Cable lengthKnown for one	Unknown — not stated by the source	2 m
System requirementsidentical
Mac operating systems supportedKnown for one	No	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 55 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 65 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 95%	Unknown — not stated by the source
Weight & dimensions1 differ
Keyboard dimensions (WxDxH)Differs	227 x 289 x 27 mm	457.13 x 185.3 x 35 mm
Keyboard weightKnown for one	720 g	Unknown — not stated by the source
Other featuresidentical
InternalKnown for one	No	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.