It is recommended to connect the device to the TV’s USB port directly.
Some USB devices or USB HUB may not be used with this TV.
You cannot connect any devices using a USB card reader.
USB Flash Memory
USB Flash Memory format:
FAT16, FAT32 or exFAT
USB HDDs formatted on a PC are not guaranteed to work in Media Player.
rec
USB HDD
The capacity of USB HDD that works with this TV is from 160 GB to 3 TB.
Connect the USB HDD to the mains socket to record and play back properly with this TV.
Use the USB HDD formatted with this TV.
Recording > USB HDD setup > Setting for USB HDD
Regarding performance, not all USB HDDs are guaranteed.