Samsung series 5+ 550 User Manual page 206

● If more than 2 PTP devices are connected, you can only use one at a time.
● If more than two MSC devices are connected, some of them may not be
recognized. A USB device that requires high power (more than 500mA or 5V)
may not be supported.
●
If an over-power warning message is displayed while you are connecting or
using a USB device, the device may not be recognized or may malfunction.
● If the TV has no input during the time set in
Screensaver will run.
◀
● The power-saving mode of some external hard disk drives may be released
automatically when your connect them to the TV.
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