D-Link DWA-552 Extreme N Desktop PCI Adapter has three antennas. It has better range and higher speed than DWA-525. It is easy to mixup these two module numbers. DWA-525 has one antennas. N150 DWA-552 has three antennas. N300, double speed of above in the idea environment.
To choose the router or upgrade your home network, first you should know what standard you need. There are three main standards on market now. Standard Max Speed 802.11g 54Mbps 802.11n 600Mbps 802.11ac 1.3Gbps 802.11g was introduced many years ago, I wrote a post eight years ago related the wireless network. 802.11ac is still a