Product comparison · 2 keyboards

KeySonic ACK-540 BT vs Lenovo Preferred Pro USB Keyboard - Hungarian

Key differences

Connectivity technology
- ACK-540 BT:Wireless
- Preferred Pro USB Keyboard - Hungarian:Wired
Device interface
- ACK-540 BT:Bluetooth
- Preferred Pro USB Keyboard - Hungarian:USB
Keyboard number of keys
- ACK-540 BT:89
- Preferred Pro USB Keyboard - Hungarian:105
Keyboard dimensions (WxDxH)
- ACK-540 BT:291 x 29 x 197 mm
- Preferred Pro USB Keyboard - Hungarian:453 x 185 x 34 mm
Keyboard weight
- ACK-540 BT:657 g
- Preferred Pro USB Keyboard - Hungarian:1.27 kg

Differences highlightedShow differences only

Comparison of ACK-540 BT, Preferred Pro USB Keyboard - Hungarian
17 specifications	A KeySonic ACK-540 BT View product	B Lenovo Preferred Pro USB Keyboard - Hungarian View product
Keyboard3 differ
Connectivity technologyDiffers	Wireless	Wired
Device interfaceDiffers	Bluetooth	USB
Keyboard number of keysDiffers	89	105
Bluetooth versionKnown for one	2.0+EDR	Unknown — not stated by the source
CertificationKnown for one	Unknown — not stated by the source	TUV-GS - ZH1/618, UL-1950, VCCI, BSMI, C-Tick, CE, CSA C22.2 No. 950-M89, FCC Class B - P15, ICES-003 Class B, IEC-801-2 L3, IEC-950, MIC, NMB-003 Class B
Designidentical
Product colour	Black	Black
Featuresidentical
Wireless rangeKnown for one	10 m	Unknown — not stated by the source
Cable lengthKnown for one	Unknown — not stated by the source	2 m
Poweridentical
Battery typeKnown for one	AAA 1,5 V	Unknown — not stated by the source
Number of batteries supportedKnown for one	2	Unknown — not stated by the source
Mouseidentical
Mouse included	No	No
Weight & dimensions2 differ
Keyboard dimensions (WxDxH)Differs	291 x 29 x 197 mm	453 x 185 x 34 mm
Keyboard weightDiffers	657 g	1.27 kg
Other featuresidentical
Compatible operating systemsKnown for one	Windows XP / Vista Windows 98SE / ME / 2000	Unknown — not stated by the source
DepthKnown for one	Unknown — not stated by the source	7.3 in
HeightKnown for one	Unknown — not stated by the source	1.3 in
WidthKnown for one	Unknown — not stated by the source	17.8 in

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.