Purchasing WIFI NANO USB Adapter for Windows 7 Desktop?

Question

I am about to purchase a WIFI NANO USB adapter for my WINDOWS 7 desktop so that I can create WIFI at my home and use PCs internet by WIFI adapter on my android mobiles.

I have read reviews about different WIFI USB NANO adapters on ebay.in and other websites. At reasonable and not much expensive devices, I found following good USB Adapters on ebay :

1. Electron Systems - 802.11N Mini Wireless N 11n Wi-Fi Nano USB Wi-Fi Adapter Dongle WiFi
2. Leoxsys Networks Pvt. LTd. - LEOXSYS 802.11N Mini Wireless N 11n Wi-Fi Nano USB Wi-Fi Adapter Dongle WiFi
3. EDUP Mini Wireless Wi-Fi Nano USB Adapter Dongle WiFi Dongle

I am confused among above three. Most of them supports WPA-2 security and range is decent 15-20 meters.

Electron's USB adapter comes with Special ventilator holes to exhausts heat. Can some one tell are these ventilator holes added advantage actually or not?

Which of the above three will be best to buy?

Are there any hardware or technical difference in above products?

My criteria will be dropping of WIFI connections, heating of the device and device WIFI range at home.

Any suggestions or feedback would be appreciated.

Thanks

Answer 1

Your router plays a major roll in picking the best usb adapter available It's best to match the ratings of the router with the adapter to get the best speed. IE n600 router can use a n600 single band or n600/n900 dual band adapter. Thats Where you want to start. Usually I'd recommend a n300 nano usb nano adapter. The ventilation might be for their design. most nano adapters operate cool enough not to need any ventilation.

Answer 2

Nano Usb Wifi

Answer 3

Go for EDUP Mini Wireless Wi-Fi Nano USB Adapter Dongle WiFi Dongle

Answer 4

Electron usb wifi adapter is better than leoxsys and edup