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HD-King
Innovation in AV Technology

Professional manufacturer of HDMI, KVM, Audio/Video extenders, switches, and projectors. OEM/ODM services with cutting-edge R&D and SMT production.

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About HD-King

ShenZhen HD-King Electronic Co., Ltd and ShenZhen Sinzen Technology Co., Ltd are professional manufacturers specialized in researching, developing, producing, and selling HDMI series products such as HDMI splitters, switches, converters, extenders, matrices, cables, DisplayPort, Mini DisplayPort, VGA extenders, and more.

With integrated manufacturing lines and our own SMT factory, we deliver high-quality AV components at competitive prices. Our team of experienced engineers uses advanced software like CAD, Pro/E, and CorelDraw to support custom OEM/ODM projects tailored to your needs.

2000m²
Production Area
40+
4K/8K TVs for Testing
Factory Production Line Product Testing Team

Our Products

High-performance HDMI, KVM, Audio, and Video solutions engineered for reliability, scalability, and cutting-edge compatibility.

HDMI 2.0 Audio Extractor

HDMI 2.0 Audio Extractor

P/N: T-621E

  • • Extracts digital audio from HDMI signal
  • • Supports 192kHz high-resolution audio
  • • HDMI 2.0 compliant, up to 4K@60Hz
HDMI 2.0 Matrix 4x4

HDMI 2.0 Matrix 4x4

P/N: T-2044E

  • • Route any of 4 HDMI inputs to any of 4 outputs
  • • Supports 4K@60Hz, HDR, and HDCP 2.2
  • • IR and RS-232 control options
HDMI Wireless Extender 200M

HDMI Wireless Extender 200M

P/N: T-WS200

  • • Transmits HDMI up to 200 meters wirelessly
  • • Supports 1080p@60Hz video
  • • Low latency, ideal for live presentations
Mini Size HDMI H.265 Wireless Extender

Mini HDMI H.265 Wireless Extender

P/N: T-802

  • • Compact design with H.265 compression
  • • 1080p transmission with low bandwidth
  • • Plug-and-play, no configuration needed
Digital to Analog Audio Converter

192KHz Digital to Analog +3.5mm Audio Converter

P/N: T-609PRO

  • • Converts optical/coaxial to analog stereo
  • • Supports up to 192kHz/24-bit audio
  • • Includes 3.5mm headphone output
HDMI KVM Extender 200M

HDMI KVM Extender 200M

P/N: T-51200

  • • Extends HDMI, USB, and audio up to 200m
  • • Supports 4K@30Hz resolution
  • • Ideal for control rooms and data centers
HDMI 2.0+USB 3.0 KVM Switch 4x1

HDMI 2.0+USB 3.0 KVM Switch 4x1

P/N: T-KV304D

  • • Switch 4 computers with one console
  • • Supports 4K@60Hz and USB 3.0 peripherals
  • • Hotkey and button control
DP Bi-Direction 8K Switch 2x1

DP Bi-Direction 8K Switch 2x1

P/N: T-DP302S

  • • Bidirectional DisplayPort 8K@60Hz switch
  • • Supports DSC and HDR
  • • Auto-switching and manual control
HDMI 8K Switch 2x1

HDMI 8K Switch 2x1

P/N: T-302HE

  • • Supports HDMI 2.1, 8K@60Hz, 4K@120Hz
  • • VRR, ALLM, HDR10+, DSC supported
  • • 48Gbps bandwidth
IR Remote Extender Repeater

Infrared IR Remote Extender Repeater

P/N: IRE08

  • • 1 receiver, 8 emitters for full coverage
  • • Extend IR control up to 30m
  • • Ideal for hidden AV equipment
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Why Choose HD-King?

Engineered for performance, reliability, and innovation.

🔧

OEM/ODM Support

Our experienced engineering team supports custom designs using CAD, Pro/E, and CorelDraw. From concept to mass production, we deliver tailored AV solutions.

🏭

In-House SMT Factory

Owning our SMT production line allows faster turnaround, lower costs, and strict quality control. All products are tested on real 4K/8K TVs before shipment.

🚀

HDMI 2.1 & 8K Ready

We support the latest HDMI® 2.1a specification with up to 48Gbps bandwidth, enabling 8K60, 4K120, Dynamic HDR, and advanced gaming features.

100+
Products
40+
4K/8K TVs for Testing
2000m²
Production Area
15+
Countries Served

Latest News

Stay updated with our company and industry developments.

April 30, 2022

Factory Moving to Dongguan

Our factory has relocated to Dongguan Huangjiang Town in May 2022. We now operate from a 2000 square meter production facility with two sales offices in Shenzhen.

April 30, 2022

We Have Our Own SMT Factory

Owning our SMT factory enables faster order fulfillment and lower production costs, ensuring competitive pricing and high reliability.

April 30, 2022

New 4K/8K TVs for Testing

We now have over 40 4K and 8K TVs for comprehensive product testing, ensuring full compatibility with the latest consumer displays.

April 30, 2022

HDMI® 2.1a Specification

Our products support HDMI 2.1a with up to 48Gbps bandwidth, enabling 8K60, 4K120, Dynamic HDR, and advanced gaming features.

Get in Touch

For inquiries, OEM/ODM support, or product information, contact us today.

Contact Information

Phone: +86 133 8035 0994

Email: [email protected]

Factory Address: 3 Floor, Building D, Taidezhichuang Park, NO.23 Changdong Road, Huangjiang Town, Dongguan, Guangdong, China

Shenzhen Office: 2A092, 5th Exchange Square, China South City, PingHu, Longgang, Shenzhen, Guangdong, China

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