2 x 12dBi 2.4GHz WiFi RP-SMA Antenna + 2 x 20cm U.fl/IPEX Cable for Wireless Routers Mini PCIe Cards Network Extension Bulkhead Pigtail PCI WiFi WAN Repeater etc White

Color: 2-pack+U. FLWhich antenna do I choose? The first is that simply because an antenna is bigger such as a 15 or 20dBi does not necessarily make it is better. A 2 dBi antenna is very effective at short range while a 9 dBi antenna is not effective at short range, but works very well picking up signals from a distance. If you simply want range to cover a home a 2-5 dBi antenna will be plenty enough. If there are block walls or other interference a larger antenna will not make the signal better. If you live in a home that has many WiFi dead spots then a wifi booster would be a much better option, or upgrading to a better long-range router. If you do need to get distance from your WiFi connection such as a detached garage, a longer antenna can be a good option. Getting a 9 or 11 dBi antenna would be much more better in this case. All antennas have their strengths and weaknesses. The omnidirectional antenna is great for general coverage and is more cost effective because of the general coverage it provides in a central location.

The directional antennas are best for getting signal to a specific area, be it near or far.