Any standard set of HDMI cables that the box says is compatible with HD-720p/1080p televisions or the newer UHD-4K televisions will work because all you're doing is running sound from your TV to the speakers and that's it. However, if you have a UHD/4K television and PLAN TO WATCH 4K MOVIES FROM A 4K/BLU-RAY DISC PLAYER THEN YOU MUST BUY 4K COMPATIBLE HDMI CABLES AND RUN THEM THROUGH THE HW-Q60R SOUNDBAR OR OTHER 4K COMPATIBLE SOUND SYSTEM OR YOU WON'T BE ABLE TO WATCH YOUR MOVIES IN UDH-4K RESOLUTION! I made this mistake last year when I bought a new Samsung Q6F-QLED television and bought the Samsung N-550 soundbar to go with it. That soundbar, the older version of the current HW-Q60R soundbar, as great as it is, DOES NOT HAVE 4K PASS-THROUGH, so I could not play 4K discs on my TV when hooked up from my 4K disc player via the soundbar. The current HW-Q60R soundbar is specially made to be compatible with all Samsung QLED televisions and it DOES have 4K pass-through! After getting this new soundbar for $275 at Best Buy a couple of weeks ago, I can finally play 4K videos from my Samsung UBD-M9500 4K/Blu-Ray disc player to my QLED-TV with no problems and excellent sound to boot. Bottom line: If you have a regular HD or UHD television then regular HDMI cables to your soundbar is fine (hook up to the ARC-HDMI port on your TV and the soundbar) as long as all you want is the sound. But if you have a QLED or UHD-4K television and you plan to watch 4K videodiscs from a 4K video player then you must have the HW-Q60R soundbar (or its equivalent sold by Costco) and 4K compatible HDMI cables to play 4K discs on your TV routed through the soundbar. For this, you'll need to buy two 4K compatible HDMI cables - from the 4K player to your soundbar and a second set from your soundbar to the television. Bear in mind, whichever soundbar you buy in the end, if you plan to play 4K vidoes, make sure it has 4K pass-through; otherwise, you'll be watching your movies in Blu-ray resolution and not 4K, which is whole reason you are wanting a 4K television!