Summary: These may be good quality switches. Unfortunately, we did not have a chance to even use them since they are not As Described under the specifications, and are the V2 version rather than the original.
Pros: Everything is perfect for our use - metal case, lights, cable and power port arrangement. We are using these internally as part of a multi-core buildout.
Cons: These are the V2 version of the switches. This may work fine for some people, but we specifically wanted the original version. We need a 12 Volt power supply, but the V2 is 9 Volt. Unfortunately, because of this we will likely have to return them.
Summary: Maybe the power saving features get in the way. Swapped all cables and tried a different switch to verify, this ZyXEL does not advertise and properly negotiate 1000baseT/Full with two of my computers. No trouble with different brand / known good switch.
Pros: Inexpensive and "Green"
Cons: Does not reliably negotiate to gigabit speed.
Summary: I still say it's a good value have had it over a year and a 1/2 and it's worked fine. Speed has been fast. Just wish port 5 would work. Might be time to by another switch. Maybe I need 16 ports.
Pros: Have had it over a year and has worked great. Stays cool. Metal case is nice to dissipate any heat. Probably why it doesn't get hot. And I am using almost all ports on this guy.
Cons: Port 5 is acting flakey that last month or so. Just plugged in a device into port 5 no light or connectivity. Plug it in to port 7 works fine. Repeat same behavior. All my ports are full and live. Wondering if it's cuz it's to busy? If it was that then why does port 7 work fine?