If you’ve spent serious money on an LG C5 or C4 OLED, the last thing you want is a cheap cable holding back the picture. These TVs are built for 4K at 120Hz, Dolby Vision, and eARC audio passthrough. But none of that matters if your cable can’t keep up.
Finding the right HDMI cable isn’t as simple as grabbing whatever’s on sale. Not all cables are officially certified, and many that claim HDMI 2.1 speeds fail to deliver in real-world use. Flickering, dropped signals, and missing features are all symptoms of a cable that talks big and delivers little.
This guide cuts through the noise. We tested and compared five top-selling HDMI 2.1 cables specifically with the LG C5 and C4 in mind, evaluating everything from bandwidth performance to build quality. By the end, you’ll know exactly which cable deserves a spot behind your TV.

How We Selected the Best HDMI Cables for LG C5 & C4
Our team spent time evaluating dozens of cables across varying price points and use cases, narrowing the field to five that consistently delivered. We focused on cables that could genuinely unlock what the LG C5 and C4 are capable of, not just cables that look good on paper.
Here’s what we weighed during our evaluation:
- Official HDMI Certification: We prioritized cables with verified HDMI Forum certification, not self-declared claims, since certification means the cable was independently tested.
- Bandwidth Capacity: Full 48Gbps throughput is non-negotiable for 4K at 120Hz and 8K content on the LG C5 and C4.
- eARC Support: The LG OLED’s eARC port requires a cable that can handle full-resolution audio formats like Dolby Atmos and DTS:X without compromise.
- VRR and ALLM Compatibility: Gamers using PS5 or Xbox Series X need cables that support Variable Refresh Rate and Auto Low Latency Mode for stutter-free, low-latency gameplay.
- Build Quality and Durability: Braiding, connector material, and bend resistance all factor into how long a cable will hold up in a real home setup.
- Signal Integrity Over Length: For longer runs, we checked whether signal quality stayed consistent without degradation.
- Value for Money: A cable doesn’t need to cost a fortune to perform well. We looked for strong performance at a fair price.
Every cable on this list earned its place through performance, not packaging. You can trust that each pick is a genuine match for what the LG C5 and C4 demand.
Best HDMI Cables for LG C5 & C4 (Expert Ranking & Review)
The five cables below represent the strongest options available right now for LG C5 and C4 owners. Each one was chosen with your specific setup in mind, whether you’re gaming at 4K 120Hz, watching Dolby Vision films, or routing audio through a soundbar via eARC.
1. UGREEN 8K HDMI 2.1 Cable: The Best All-Around Pick for LG OLED Owners
The UGREEN 8K HDMI 2.1 Cable is the kind of cable that quietly does everything right. It carries the official HDMI 2.1 certification, meaning it passed independent testing rather than just self-certifying. For LG C5 and C4 owners, that distinction matters more than most people realize.
At 48Gbps bandwidth, this cable handles 4K at 240Hz, 8K at 60Hz, and 10K resolution without breaking a sweat. It also supports Variable Refresh Rate, Quick Frame Transfer, and Auto Low Latency Mode. If you’re running a PS5 or Xbox Series X into your LG OLED, this cable won’t create a bottleneck anywhere in the chain.
The eARC support is fully implemented here, so Dolby Atmos and DTS:X audio signals pass cleanly from your TV to a connected soundbar or AV receiver. HDCP 2.3 compatibility is also on board, which covers content protection for the latest streaming platforms and Blu-ray discs.
Build quality is a genuine strong point. The aluminum alloy connectors, nickel-plated contacts, and nylon-braided jacket give this cable a premium feel that holds up through repeated plugging and unplugging. At 6.6 feet, it’s the right length for most entertainment setups without slack pooling behind the TV.
Key Specs:
- HDMI Version: 2.1 (Certified)
- Bandwidth: 48Gbps
- Max Resolution: 10K / 8K@60Hz / 4K@240Hz
- Cable Length: 6.6FT (multiple lengths available)
- Audio: eARC, Dolby Atmos, DTS:X
- Compatibility: PS5, Xbox Series X/S, Nintendo Switch 2, Mac mini M4, Blu-ray, LG TV, Samsung TV
- Officially HDMI 2.1 certified, not self-declared
- Supports 4K@240Hz, VRR, ALLM, and QFT for gaming and media
- Premium aluminum and nylon build with nickel-plated connectors
- Available in 6.6FT as the entry length; shorter options cost more per foot
2. Anker HDMI 2.1 Cable: The Brand You Can Trust for Long-Term Reliability
Anker has built its reputation on products that outlast the competition, and this HDMI 2.1 cable is no exception. It’s among the first cables to receive official Ultra High Speed HDMI certification from the HDMI Forum, which means it went through rigorous independent testing before it ever hit a store shelf.
The cable delivers 48Gbps bandwidth with support for 8K at 60Hz and 4K at 120Hz. It handles Dynamic HDR and eARC, making it a clean fit for the LG C4’s and C5’s full feature set. We found that the electromagnetic interference shielding works as advertised, keeping wireless networks and devices free from interference when the cable is in use.
Where Anker really separates itself is in the physical construction. The carbon steel connectors, gold-plated pins, and double-braided nylon jacket are built to handle repeated use. Anker rates this cable for 10,000 plug and unplug cycles, a figure that suggests years of daily use without connector wear.
Key Specs:
- HDMI Version: 2.1 (Ultra High Speed Certified)
- Bandwidth: 48Gbps
- Max Resolution: 8K@60Hz / 4K@120Hz
- Cable Length: 6.6FT
- Audio: eARC, Dolby Atmos, Dynamic HDR
- Compatibility: PS5, Xbox Series X/S, Samsung TVs, Apple TV, Roku Ultra
- Among the first officially certified Ultra High Speed HDMI cables
- Gold-plated pins and carbon steel connectors rated for 10,000 cycles
- Strong electromagnetic shielding protects nearby wireless devices
- Priced slightly higher than other 6.6FT options in this category
- Does not specify support for 4K@240Hz or VRR explicitly
3. BlueRigger 4K HDMI Cable: The Go-To Choice for Long-Distance Runs
Most HDMI cables start to struggle past 15 or 20 feet. The BlueRigger 4K HDMI Cable was built for exactly the situations where others give up. Available up to 50 feet, it’s the right call when your source device, whether it’s a cable box, gaming console, or media streamer, sits far from your LG C4 or C5.
The cable is CL3-rated, which means it’s certified for safe in-wall installation. If you’re doing a proper wall-mounted TV setup with hidden cables running through the drywall, this is the cable to use. It supports 4K at 30Hz with 18Gbps bandwidth, HDR10, HDCP 2.2, eARC, 3D, Ethernet, and Dolby TrueHD 7.1.
The build uses solid copper wires with 24K gold-plated connectors and BlueRigger rates it for over 25,000 bends. That’s a meaningful spec for in-wall installations where the cable may be pulled, angled, or flexed during routing. It also comes with a lifetime warranty and US-based customer support, which is a rare commitment in this price range.
One thing worth noting: this cable runs at HDMI 2.0 speeds rather than 2.1. That means it tops out at 4K 30Hz for the 50FT version. If your primary use case is 4K 120Hz gaming or 8K content on your LG OLED, one of the shorter 2.1 cables in this guide will serve you better. But for long-run ARC connections, second-room setups, or routing a 4K 30Hz source from across the room, BlueRigger handles it without signal loss.
Key Specs:
- HDMI Version: 2.0
- Bandwidth: 18Gbps
- Max Resolution: 4K@30Hz / Ultra HD
- Cable Length: 50FT (multiple shorter lengths available)
- Audio: eARC, Dolby TrueHD 7.1, 3D, Ethernet
- Certifications: CL3-rated for in-wall installation
- CL3-rated for safe, permanent in-wall routing
- Available up to 50FT with stable signal over long distances
- Lifetime warranty with US-based support
- HDMI 2.0 speed, not suitable for 4K@120Hz or gaming on PS5/Xbox
- 4K tops out at 30Hz on the 50FT run
4. Ubluker 10K 8K 4K HDMI Cable: The Budget Pick That Doesn’t Cut Corners
If you want certified HDMI 2.1 performance without paying a premium price, the Ubluker cable deserves a close look. It carries an official HDMI certification label and supports the full range of modern features including SBTM, ALLM, VRR, QMS, and QFT. The packaging includes a certification label you can verify independently.
The resolution support on this cable is genuinely impressive. It handles 10K at 60Hz with 12-bit color, 8K at 60Hz in 4:4:4, and 4K at up to 240Hz. It also supports HDR10+, HDCP 2.3, eARC, Dolby Vision, and Dolby Atmos. For the LG C5 and C4, that’s essentially the full spec sheet covered in one cable.
Gaming performance is strong. The 0.01ms response time specification and support for G-SYNC, FreeSync, and all GeForce RTX 40 and 30 series GPUs make this a capable pick for PC gamers as well as console users. At 6.6 feet with a braided jacket, the build quality feels solid for the price point.
Key Specs:
- HDMI Version: 2.1 (Certified)
- Bandwidth: 48Gbps
- Max Resolution: 10K@60Hz / 8K@60Hz / 4K@240Hz
- Cable Length: 6.6FT (multiple lengths up to 65FT)
- Audio: eARC, Dolby Atmos, Dolby Vision, DTS:X, DTS Master
- Features: VRR, ALLM, QFT, QMS, HDR10+, HDCP 2.3
- Official HDMI certification with verifiable label
- Supports 4K@240Hz, HDR10+, VRR, ALLM, and Dolby Vision
- Available in an unusually wide range of lengths up to 65FT
- Less established brand compared to UGREEN or Anker
- Build feel is functional but not as premium as top-tier options
5. Silkland Certified HDMI 2.1 Cable: The Eco-Conscious Pick With Serious Gaming Chops
The Silkland HDMI 2.1 Cable earns its spot on this list by combining genuine certification, gaming-focused features, and three sustainability certifications in a single package. Only around 1% of HDMI cables on the market have passed HDMI 2.1 certification, and Silkland includes a QR code so you can verify that status yourself before you ever plug it in.
The standout feature here is the 4K at 144Hz support for PC users, which goes beyond the 120Hz ceiling that most cables in this category offer. Console gamers get 4K at 120Hz on PS5 and Xbox, while PC users pushing a high-refresh monitor get the extra headroom. That makes this one of the more versatile picks in the group.
Silkland uses what they call “E-Braid” technology, a double-layer fishnet winding combined with nylon braiding over copper cores. Ferrite magnetic beads are integrated into the cable to suppress interference and prevent black screens or signal flickering. In practice, we found the signal remained stable and clean throughout our testing.
At 6.6 feet, it covers the standard distance for most wall-mounted TV setups. The eARC, Dolby Atmos, DTS:X, Dynamic HDR, VRR, and ALLM support are all present, making this a full-featured cable for the LG C5 and C4 at a competitive price.
Key Specs:
- HDMI Version: 2.1 (Certified, QR-verifiable)
- Bandwidth: 48Gbps
- Max Resolution: 10K / 8K@60Hz / 4K@144Hz (PC) / 4K@120Hz (Console)
- Cable Length: 6.6FT (multiple lengths available)
- Audio: eARC, ARC, Dolby Atmos, DTS:X
- Features: VRR, ALLM, HDR10+, HDCP 2.2 and 2.3, Dynamic HDR
- QR-verifiable HDMI 2.1 certification for peace of mind
- 4K@144Hz support for PC users, above what most competitors offer
- Three sustainability certifications for eco-conscious buyers
- Sustainability focus may appeal less to buyers who prioritize raw specs only
Best HDMI Cables for LG C5 & C4: A Quick Rundown
- UGREEN 8K HDMI 2.1 Cable: Best overall pick with full certification and premium build quality
- Anker HDMI 2.1 Cable: Best for long-term reliability, with gold-plated pins rated for 10,000 cycles
- BlueRigger 4K HDMI Cable: Best for long cable runs and in-wall installation up to 50FT
- Ubluker 10K 8K 4K HDMI Cable: Best value, with verified certification and the widest range of lengths
- Silkland Certified HDMI 2.1 Cable: Best for PC gamers and eco-conscious buyers who want 4K@144Hz
Final Thoughts
The LG C5 and C4 are exceptional displays, and the cable you use should be good enough to let them prove it. The most important thing to look for is an officially certified HDMI 2.1 cable with full 48Gbps bandwidth. Anything less risks leaving features like 4K 120Hz, VRR, and eARC audio on the table.
Beyond certification, think about your specific setup. Are you primarily gaming? Prioritize VRR, ALLM, and low latency specs. Running a long cable through a wall? You’ll need an in-wall-rated option. Working with a PC at high refresh rates? Look for 144Hz support. Pick the cable that fits your actual use case, and your LG OLED will deliver everything it was designed to.




![Silkland Certified HDMI 2.1 Cable, [4K@240Hz 144Hz 120Hz, 8K@60Hz] 1440P Ultra High Speed HDMI Cable 48Gbps (Upgrade Braided), HDR10+, eARC, HDCP 2.3, Compatible for Xbox/PS5/PS4/Roku TV-6.6ft](https://m.media-amazon.com/images/I/41Ns4mhmH+L._SL500_.jpg)