How to choose a wireless USB wifi adapter with 300mbps, 450mbps or 600mbps?

Wireless wifi adapter(wifi dongle)according to this port differs, largely divided into several types of products: PCMCIA wifi dongle, PCI wifi dongle, USB wifi dongle and CF/ISA wifi dongle.
Now mostly introduce the USB wifi dongle which is common used mainly.
USB wireless adapter also known as usb wifi dongle, this type wifi dongle may use on desktop or laptop that provided that completing installation of NIC driver. In the choice of wifi adapter you need to pay more attention to whether it’s USB2.0 interface, since merely USB2.0 protocol or USB3.0, it may meet the requirements of 802.11g, 802.11n and 802.11ac. Additionally, there’s MINI-PCI wifi adapter that’s employed in the wide variety of notebooks.

Kootek-Wifi-Dongle-Mini-USB-Wireless-Adapter


MINI-PCI is a wifi adapter on board. The benefit is that you don’t need to take a PC card or USB slot and go through the trouble of carrying a PC card or USB card. Actually these sorts of wireless wifi adapter is at low gap of price, in the performance / function is also similar, everybody can pick wifi adapter on demand.
From the speed perspective, the mainstream wireless wifi adapter rate of 108M, 150M, 300M, 450M, 600M. The performance basically see from the usage environment.
Using 5GHz frequency band, the transmission rate of 54mbps and isn’t compatible with 802.11b.
802.11b
Using the 2.4GHz frequency band, the transmission speed of 11mbps.
802.11n
Employing the 2.4GHz frequency band and 5GHz frequency band transmission rate 600mbps.
802.11ac
Utilizing 5GHz frequency band, transmission rate 1Gbps
Kootek signal augmentation 2dBi Antenna it much more sensitive when sending and receiving data, higher stability and coverage on signal transmission.
Dual band max speed up to 433Mbps at 5GHz, 150Mbps in 2.4GHz. Reduce freezing and lags when gaming and streaming.
Support the Brand New 802.11ac Protocol, Compatible with 802.11a/b/g/n 4 Patterns
Compatible with Windows XP / Vista / 7 / 8 / 8.1 / 10 ( 32 / 64bits ); Mac OSX 10.6 — 10.12
Easy to install, package includes a CD disk and basic manual, manually install the drivers along with WiFi software