![]() If your internet speed is lower than 10Mbps, the streaming quality may be automatically scaled down to 1080p or even lower. You can test the maximum connection speed with Speedtest app. Normally, for 4K contents, the bandwidth (speed) required is at least 15-20mbps. To use Chromecast Ultra to stream 4K content, you need a fast enough internet speed. Your internet connection speed should be fast enough Google just wants you to use the bundled original power adapter if you want to use Chromecast Ultra to stream 4K contents. The power output of the adapter you used does not matter. You can stream 4K contents with wireless connections.īut if you use other USB power adapters, Chromecast Ultra will detect it and will then stream contents in 1080p only. You are NOT required to use the Ethernet connection. The power adapter for Chroemcast Ultra has an Ethernet port. You must use the original power adapter to use Chromecast Ultra to stream 4K contents If you connect Chromecast Ultra TV to an HDMI switcher or AV receiver, then the HDMI switcher or receiver must also support HDCP 2.2. You need to check the specs of the TV carefully.īut if you have an old 4K TV, or unbranded 4K TV, you may find you cannot use Chromecast Ultra to stream 4K contents, Most new 4K TVs should have at least one HDMI port with HDCP 2.2. This depends on TV vendor’s implementation. And HDCP 2.2 is only available in HDMI 2.0.Įven more tricky, some HDMI 2.0 ports may not support HDCP 2.2. This is the most tricky requirement of using Chromecast Ultra to stream 4K contents. It can scale video quality automatically for the TV it connects to.Ī 4K TV is required only if you want to enjoy any 4K contents.īut when you want to enjoy 4K contents, then a 4K TV is not sufficient. Why is a 4K TV not sufficient for using Chromecast to stream 4K contents? You need a 4K TV with HDCP 2.2 support!Ĭhromecast Ultra actually works with any TV with HDMI input. The other 4 are related to connection, content source and accessories. ![]()
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