Sick of your Wi-Fi performance? Is this the answer? In the early days of WiFi, routers often came with their own adapters to take maximum advantage of proprietary performance or security enhancements. But for at least a decade, since Intel’s Centrino campaign, we have made do with whatever WiFi came in our notebooks, which is often of variable specification. Rivet Networks’ Killer range, however, has forged a niche for itself where gamers can obtain better performance from products incorporating its networking technology. Latest in this line is the Wireless-AC 1550.