LEDs glow to indicate whether the adapter is receiving power, whether it's connected to a power-line network, and whether an ethernet device is connected. The adapters have both pushbutton and password security setup options.
In my tests, this D-Link's performance was on par with other basic HomePlug AV2 kits, moving data at speeds at roughly 65- to 69 Mbps. Like others in this review, it had no difficulty streaming high-def video.
I wish D-Link had provided somewhat longer ethernet cables. The ones in the box were among the shortest of this roundup, measuring about 40 inches long, which was barely enough to connect a notebook on a desk to an outlet behind it. But the D-Link DHP-601AV is one of the least-expensive HomePlug AV2 starter kits available, making it a good option for budget-sensitive buyers (ethernet cables are nothing if not cheap).