KWorld UB435-Q USB ATSC TV Stick

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KWorld UB435-Q USB ATSC TV Stick

An ATSC USB 2.0 device from KWorld.

There are 3 versions of this device - each has a different VID:UID:

  • 1b80:a340 no version indicator - supported under Linux as of Kernel 2.6.3
  • 1b80:e346 markings ?? appears to be supported in kernel ??
  • 1b80:e34c add V3 to name - supported under Linux as of Kernel 3.16.??

Original version Overview/Features

  • High speed USB2.0 Plug-and-Play interface for PC or Laptop.
  • USB 2.0 Bus-powered (No power adaptor required).
  • Supports up to 1920x1080i (HDTV).
  • Supports Digital TV (ATSC 8VSB) and Digital Cable TV (unencrypted QAM).
  • Dolby Digital AC3 Audio Output.

Components Used

  • NXP TDA18271HD/C2 tuner
  • LG LGDT3304 digital demodulator
  • Empia EM2870 USB bridge


Looks and is identical to the older ATSC 340U, but with different coloured packaging, and uses a newer revision (C2) of the tuner. [1] [2] Internal PCB is stamped ATSC_340U Ver:B

USB ID from Output of lsusb: 1b80:a340

UB435-Q V3 Overview/Features

  • Requires USB 3 interface. Detected in a USB 2 slot, but does not function.
  • Other features same as original version.

Components Used

  • LG LGDT3305 digital demodulator (neatly stamped "7th Generation VSB/QAM Receiver")
  • NXP 18272/M
  • Empia EM2874B USB bridge


Looks like original version. Label on back with UPC code has V3 added to name.

USB ID from Output of lsusb: 1b80:e34c

External Links