
Judging from the included documentation, this device supports some older HDMI specifications (I can't remember which ones). However, I tested it and found that it outputs 4k 60Hz videos without any issues. So this switch will likely work with any HDMI 2.0 device. As others have pointed out, it doesn't come with a power adapter (it has a 3.5mm jack and a 5V input). However, I have never needed it for my devices. If you need one, you can purchase the following: Super Power Supplyยฎ USB to 3.5mm Barrel Jack 5V DC Cable Connector and use it with a standard USB power adapter. In terms of performance, this thing works as expected. If only one input is active, the switch automatically switches to this input. If more than one input is active, simply press the select button to toggle between them. Overall, this is a pretty good HDMI switch for the price. Pros: Automatic switching between inputs. Requires no power source. Supports 4k at 60 Hz. Cons: Cheap build quality. A power adapter is not included in case you need one

TV Tuner LUMAX DV-2120HD
15 Review

HOMELYLIFE 600W High Power Voltage Reducer DC 48V 60V 72V Step Down To DC 12V 50A Buck Converter Waterproof Module Car Truck Power Regulator Transformer
12 Review

VINTAR EU To US Plug Adapter 3-Pack For Easy Travel: Europe To USA Converter For Spain, France, And More, Compatible With Type C/E/F Plugs - European To US Power Adapter Solution
11 Review

Dorhea LM2596 DC-DC Buck Converter Step-Down Regulator 4.0-40V To 1.25-37V DC 36V To 24V To 12V To 5V Volt Power Supply Module With LED Voltmeter Display Compatible With Car Motor Buck
16 Review