Review on UTT S1081P Unmanaged PoE Switch With 8 PoE Ports, 1 Ethernet Uplink Port, And 120W Power - 802.3Af Standard - Ideal For IP Cameras And APs by Tsuyoshi Tendencies

When I first installed this UTT POE switch, it worked. Ivideon server was using 30% of processor time to process 6 Lorex 8005-C (Dahua IPC) cameras. Just 1 day before the return date, the unit failed. I returned the UTT device, and replaced it with a Amcrest 9-Port POE+ Power over Ethernet POE Switch with Metal Housing, 8-Ports POE+ 802.3at 96w (AMPS9E8P-AT-96) . The Amcrest POE switch also worked immediately, but Ivideon server now only uses 20% of the computer's time. It appears that the UTT switch was marginal from the beginning, causing excessive TCP retries to operate the cameras; hence the extra 10% computer time required. The Amcrest switch uses 22 watts for itself and the 6 cameras, so the problem with the UTT switch was not camera power requirement. Some skipping in the video disappeared after changing the switch, so I suspect that the excessive TCP retries were responsible for that problem, too. I can't recommend the UTT POE switch.