ASUS USB-BT21 Mini Bluetooth Dongle, Black vs ASUS USB-BT21 Mini Bluetooth Dongle, White

Comparison of USB-BT21 Mini Bluetooth Dongle, Black, USB-BT21 Mini Bluetooth Dongle, White

19 specifications	A ASUS USB-BT21 Mini Bluetooth Dongle, BlackView product	B ASUS USB-BT21 Mini Bluetooth Dongle, WhiteView product
Ports & interfacesidentical
Connectivity technology	Wireless	Wireless
Host interface	USB	USB
Networkidentical
Maximum data transfer rate	3 Mbit/s	3 Mbit/s
Wi-Fi band	Single-band (2.4 GHz)	Single-band (2.4 GHz)
Frequency range	2.4 - 2.4835 GHz	2.4 - 2.4835 GHz
Modulation	GFSK	GFSK
Maximum operating distance	10 m	10 m
Bluetooth version	2.0+EDR	2.0+EDR
Design1 differ
Product colourDiffers	Black	White
System requirementsidentical
Compatible operating systems	Windows 98/98SE/ME/2000/XP/Vista Mac OS X.3 +	Windows 98/98SE/ME/2000/XP/Vista Mac OS X.3 +
Operational conditionsidentical
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-10 - 70 °C	-10 - 70 °C
Operating relative humidity (H-H)	10 - 90%	10 - 90%
Weight & dimensionsidentical
Width	19.5 mm	19.5 mm
Depth	16 mm	16 mm
Height	8.1 mm	8.1 mm
Weight	22 g	22 g
Other featuresidentical
Connector(s)	USB A	USB A
Link/Act LED	Yes	Yes

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.