Samsung UE50ES6300U E-Manual page 563

ΠIf more than two MSC devices are
connected, some of the devices may
not be recognized.
ΠA USB device that requires high
power (more than 500mA or 5V)
may not be supported.
ΠIf the TV has no input during the
time set in
Screensaver will run.
ΠThe power-saving mode of some
external hard disk drives may be
Auto Protection Time, the