Small 38-56kHz External Universal IR Receiver Extender works with most Cable providers boxes including but not limited to - Verizon FiOS, Comcast Xfinity X1, Cox, Charter, Spectrum DVR and Cable Boxes

Worked perfectly with Verizon Fios box.

Works well.

Just received the IR extender. Plugged it into my Spectrum cable box, placed sensor in a convenient location and moved cable box out of sight behind TV. Extender works great - price was great - I cannot detect any deterioration in cable box performance. Sensor is very non-intrusive - barely visible. Listing of compatible devices was a big help when ordering assuring the correct product.

This didn't work with my box

For the most part it does what it should do, but sometimes it does not immediately respond to signals from the Verizon remote. I may have to press a button more than once sometimes to get the TV to respond. Also, I noticed that after plugging the IR cable into the back of my Verizon set top DVR box, it will not respond if the remote is pointed directly at the box; I have to always point the remove at the IR receiver which is stuck to the top of the TV set. Not a big problem, but my old IR cable responded if the remote was pointed at the IR cable receiver or at the set top box--a minor inconvenience. Because of this I only gave it 4 stars.