HDMI ARC Adapter, edola HDMI ARC Audio Extractor Adapter 4K HDMI Audio Splitter with Digital Optical Toslink Coaxial and Analog 3.5mm L/R Stereo Audio for HDTV Soundbar Speaker Amplifier Home Theater.

Q: My smasung tv has arc and also an optical output but if i plug my speakers to that i cant control the volume with my remote, can i do it with this?

Hello, If your device and connection are ok, the TV could control the volume thru the arc and you can control the volume with your remote.

Q: Does this connect to a toshiba 50lf621u19 50-inch 4k ultra hd smart led tv hdr - fire tv edition?

Hello, this HDMI ARC Adapter suppports the fire tv, and you can connect the hdmi port of the adapter to the hdmi(arc) port of the tv. Warmly Tips: Please make sure there is an HDMI "ARC" connector on the TV (there will usually be an "ARC" sign near the HDMI port).

Q: does this come with a power cable?

Hello, the package includes a USB charging cable but no power plug.

Q: Does this extract the arc audio and still pass through 4k hdmi with ces and arc from tv to receiver?

Hello, yes, this HDMI ARC Adapter can transmit audio from TV to optical coaxial 3.5mm audio via HDMI (ARC) interface, and output simultaneously. It will only transmit the sound and will not affect other resolution and output.