MIMO (multiple-in, multiple-out) is a wireless technology that leverages the way in which radio signals naturally break up as they bounce off of objects and so arrive at the receiver at different times. Before, such signal stuttering caused havoc with radio transmission integrity. Now, MIMO puts this problem to use by sending different data streams along the slightly separated signal paths. This requires the use of multiple antennas at each end, which is why you see MIMO routers and some NICs with two or three antennas attached.
Manufacturers can apply MIMO to any standard they like, such as 802.11g or 802.11a. ASUS, like most other networking gear vendors, has opted to enhance 802.11g with MIMO, and the results are stunning. With straight 802.11g, I was able to get reception in the next-door house. With ASUS’ 240 MIMO gear, fueled by the latest Airgo chipset, I can get a decent signal inside the house one block away. A little head-to-head Xbox, anyone?
ASUS advertises up to 8X better coverage, and while I didn’t get out the tape measure to be certain, I can say that there are no more dead zones in my house, and getting strong reception through major obstacles a block away is outrageously cool. And as for the 8X advertised reception boost? Well, I was seeing 20+ Mbps with 802.11g, and I’m averaging about 80 Mbps with the ASUS WL-566gM and its PC Card counterpart, the WL-106gM, in close proximity. Still, that’s Fast Ethernet over the air, and you just can’t complain about that.
The WL-566gM installs quickly and boasts all the usual consumer necessities: SPI firewall, WEP, WPA, WPA2, and more. Best of all, it’s $50 less than other major brand 240 MIMO routers.
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