Here are some good HDMI cables (≈ 15 meter) that support 8K and 48 Gbps — suitable if you need long‑distance HDMI 2.1 connectivity for TVs, projectors, consoles or PCs 👇

Highlights

• UGREEN 15m HDMI 2.1 Fiber Optic Cable — Premium fiber‑optic 15 m cable, supporting 8K@60 Hz / 4K@120 Hz at full 48 Gbps bandwidth; ideal for long‑distance TV/console setups without signal loss. 

• MX 8K HDMI 2.1 Fiber Optic Cable 15m — Good balance of price and performance; offers Ultra High Speed HDMI 2.1 spec (48 Gbps), supports eARC, HDR10 / Dolby Vision, and is suitable for 8K devices.

• ETZIN 15m 8K Ultra HD HDMI Cable — A more budget‑friendly 15 m cable offering 8K@60 Hz / 4K@120 Hz support; worth considering if price is important but you still need long‑range HDMI connectivity.

• ETZIN 15m 8K Ultra HD HDMI Cable (Alternate Retailer) — Same model as above but from a different retailer — giving flexibility depending on availability & price.

• Honeywell HDMI Cable 2.1 with Ethernet — If you don’t always need 15 m (or are flexible with cable length), this HDMI 2.1 with Ethernet cable gives 48 Gbps at lower cost — useful for shorter runs but still future‑proof for 8K / 4K@120Hz.

⚠️ What to Watch Out For

• At 15 m, passive copper cables often struggle to maintain full 48 Gbps reliably — that’s why many long‑length cables are fiber‑optic / “active” / AOC type. 

• If you want stable 8K@60 Hz or 4K@120 Hz over 15 m, make sure the cable is actively boosted or fiber‑optic, not just a long passive copper cable.

• Always pair with HDMI 2.1‑compatible devices (TV / console / GPU). A cable alone won’t upgrade older HDMI ports.

If you like — I can pull up 5–10 of the best 15 m HDMI 2.1 cables available in India (2025) with price, retailer link, and approximate delivery time to Jaipur — that might help you pick the most suitable one directly.
Do you want me to build that list for you now?