Is this fiber optic HDMI cable directional?

Yes, this fiber optic HDMI cable is strictly directional. It features built-in photoelectric conversion chips inside the connectors. You must plug the end labeled "Source" into your output device (e.g., PS5, PC, Blu-ray player) and the end labeled "Display" into your TV or projector. It will not work if connected backward.

Why should I choose a fiber optic HDMI cable over a standard copper one?

Fiber optic HDMI cables experience zero signal degradation over long distances. Standard copper HDMI cables typically lose bandwidth and struggle to transmit 4K@120Hz or 8K signals beyond 3 to 5 meters. This DTECH fiber cable uses light to transmit data, guaranteeing a perfect 48Gbps signal up to 20 meters without any electromagnetic interference.

Does this cable support 4K at 120Hz for my PS5 or Xbox Series X?

Absolutely. This cable is fully compliant with the HDMI 2.1 standard, offering 48Gbps of bandwidth. It flawlessly supports 4K resolution at 120Hz, along with Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM), making it the ultimate choice for next-generation console gaming.

Can I buy the 20-meter version of this cable in Sham Shui Po today?

Yes, you can! Sun Cheong Computer Co. Ltd. keeps a large inventory of professional AV cables, including the 10m, 15m, and 20m versions of this DTECH fiber optic HDMI cable. You can order online and pick it up instantly at our Sham Shui Po physical store for your urgent installation projects.

Can I bend this fiber optic cable sharply around wall corners?

No, you should never bend a fiber optic cable at a sharp 90-degree angle. While the outer PVC jacket is flexible, the internal glass fibers can snap if bent too tightly. Always maintain a gentle, sweeping curve (respecting the minimum bend radius) when routing the cable through walls or conduits.

DTECH 8K Active Optical HDMI 2.1 Cable

Name: DTECH 8K Active Optical HDMI 2.1 Cable | Long Range
Brand: Dtech
SKU: 21CE001334
Price: 280.0 HKD
Availability: InStock

Short Product Description

Experience flawless high-definition video over extreme distances with the DTECH 8K Fiber Optic HDMI 2.1 Cable. Available in 10m, 15m, and 20m lengths, this Active Optical Cable (AOC) uses a 4-core fiber and copper hybrid design to deliver uncompressed 48Gbps bandwidth, supporting 8K@60Hz and 4K@120Hz with zero signal loss. Perfect for PS5 gamers, home theater projectors, and commercial AV setups requiring long cable runs. Need to upgrade your AV wiring today? 新昌電腦有限公司 (Sun Cheong Computer Co. Ltd.) has over 20 years of hardware expertise. Visit our Sham Shui Po physical store for instant pickup and professional installation advice!

Key Features

Long-Range 8K Transmission: Available in 10m, 15m, and 20m lengths, delivering flawless 8K@60Hz and 4K@120Hz video without signal boosters.
48Gbps Ultra-High Bandwidth: Fully compliant with HDMI 2.1 standards, supporting Dynamic HDR, 3D visual effects, and rapid media switching.
Directional Fiber Optic Design: Utilizes a 4-core optical fiber and premium copper core hybrid to eliminate electromagnetic interference (EMI).
Next-Gen Gaming Ready: Supports VRR, QFT, and ALLM to ensure tear-free, ultra-low latency gameplay on PS5, Xbox Series X, and high-end PCs.
eARC High-Fidelity Audio: Seamlessly transmits uncompressed surround sound formats like Dolby Atmos and DTS:X directly to your soundbar or receiver.
Durable & Slim Profile: Features a slim 4.8mm wire diameter with a flexible PVC jacket and heat-resistant zinc alloy connectors for easy conduit routing.

Full Product Description

Zero Signal Loss Over Extreme Distances

The DTECH 8K Fiber Optic HDMI 2.1 Cable guarantees zero signal degradation over long distances up to 20 meters. Traditional copper HDMI cables struggle to maintain a stable 8K or 4K/120Hz signal beyond 3 meters, often resulting in screen flickering or blackouts. By utilizing advanced photoelectric conversion chips and a 4-core optical fiber transmission system, this cable converts electrical signals into optical signals, completely eliminating electromagnetic interference (EMI) and ensuring your video arrives at the display exactly as it left the source.

Ultimate Gaming & Home Theater Experience

This cable unlocks the full potential of your next-generation gaming consoles and high-end displays. With a massive 48Gbps total bandwidth, it fully supports HDMI 2.1 features including 8K@60Hz, 4K@120Hz, and 2K@144Hz resolutions. It also supports Variable Refresh Rate (VRR), Quick Frame Transport (QFT), and Auto Low Latency Mode (ALLM) to eliminate screen tearing and lag during intense PS5 or Xbox gaming sessions. For audiophiles, the enhanced Audio Return Channel (eARC) provides uncompressed, high-fidelity sound formats like Dolby TrueHD and DTS:X.

💡 Pro Tip from Our Technicians

"If you are routing this cable through walls or ceilings, you MUST pay attention to the directional plugs! Active Optical Cables (AOC) are strictly one-way. The plug labeled 'Source' must connect to your PC, PS5, or media player, and the plug labeled 'Display' must connect to your TV or projector. If you install it backward inside a wall, you will get no signal and have to redo the entire job! Also, while fiber is durable, never bend the cable at a sharp 90-degree angle to avoid snapping the internal glass fibers. Need advice on your home theater wiring? Drop by our Sham Shui Po store! Our team at Sun Cheong Computer Co. Ltd. can help you select the exact lengths and routing tools for a flawless AV setup."

Technical Specifications

Brand & Model: DTECH (DT-HF80 Series)
Cable Type: Active Optical HDMI 2.1 Cable (AOC)
Available Lengths: 10 meters, 15 meters, 20 meters
Maximum Resolution: 7680 x 4320 (8K@60Hz), 4K@120Hz, 2K@144Hz
Total Bandwidth: 48Gbps
Core Material: 4-Core Optical Fiber + Premium Copper Core
Connector Material: Zinc Alloy Shell with Gold-Plated Contacts
Wire Diameter: 4.8mm (Ultra-slim for easy routing)
Supported Features: Dynamic HDR, eARC, VRR, QFT, ALLM, 3D
Installation Note: Strictly Directional (Source to Display)

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Is this fiber optic HDMI cable directional?Yes, this fiber optic HDMI cable is strictly directional. It features built-in photoelectric conversion chips inside the connectors. You must plug the end labeled "Source" into your output device (e.g., PS5, PC, Blu-ray player) and the end labeled "Display" into your TV or projector. It will not work if connected backward.
Why should I choose a fiber optic HDMI cable over a standard copper one?Fiber optic HDMI cables experience zero signal degradation over long distances. Standard copper HDMI cables typically lose bandwidth and struggle to transmit 4K@120Hz or 8K signals beyond 3 to 5 meters. This DTECH fiber cable uses light to transmit data, guaranteeing a perfect 48Gbps signal up to 20 meters without any electromagnetic interference.
Does this cable support 4K at 120Hz for my PS5 or Xbox Series X?Absolutely. This cable is fully compliant with the HDMI 2.1 standard, offering 48Gbps of bandwidth. It flawlessly supports 4K resolution at 120Hz, along with Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM), making it the ultimate choice for next-generation console gaming.
Can I buy the 20-meter version of this cable in Sham Shui Po today?Yes, you can! Sun Cheong Computer Co. Ltd. keeps a large inventory of professional AV cables, including the 10m, 15m, and 20m versions of this DTECH fiber optic HDMI cable. You can order online and pick it up instantly at our Sham Shui Po physical store for your urgent installation projects.
Can I bend this fiber optic cable sharply around wall corners?No, you should never bend a fiber optic cable at a sharp 90-degree angle. While the outer PVC jacket is flexible, the internal glass fibers can snap if bent too tightly. Always maintain a gentle, sweeping curve (respecting the minimum bend radius) when routing the cable through walls or conduits.

Target Users / Applications

Home Theater Installers: Routing ultra-high-definition video from an AV rack to a ceiling-mounted 4K/8K projector across a large living room.
E-Sports Cafes & Competitive Gamers: Connecting high-end gaming PCs to remote 144Hz monitors without introducing input lag or signal loss.
Commercial AV Contractors: Wiring digital signage, conference room displays, or school auditorium screens where long cable runs (10m-20m) are mandatory.