Best Buy has 6' Insignia 4K UHD HDMI Cable (NS-HG06507W) on sale for $3.99
Supports up to 4K Ultra HD (4096 x 2160 pixels) resolution
High Dynamic Range (HDR) support
1-year limited warranty
Fully shielded design
HDMI Ethernet channel
Consolidates video, audio, and data streams into a single HDMI cable, combining the unmatched signal quality and convenience of HDMI connectivity with the power and flexibility of home entertainment networking.
Audio Return Channel (ARC)
Uses a single HDMI connection to send audio from a TV to the sound bar or AV receiver.
Supports speeds up to 18 Gbps