1x8 HDMI 2.1 Distribution Amplifier 48 Gbp

VLSP-18H21S

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User Manual

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Product Description

The VLSP-18H21S is a high-bandwidth 1x8 HDMI splitter engineered to distribute a single HDMI source to up to eight displays simultaneously with uncompromised quality. Supporting resolutions up to 8K@60Hz (4:2:0, 12-bit) and data rates up to 48Gbps, this splitter fully complies with HDMI 2.1 and HDCP 2.3 standards for next-generation content delivery.

Designed for seamless integration into high-performance AV systems, the VLSP-18H21S features EDID management and cable equalization capabilities to ensure optimal signal integrity across all connected displays. Its advanced architecture makes it ideal for gaming setups with Xbox Series X or PS5, delivering 4 K at 120Hz to compatible TVs and monitors.

Whether for commercial display walls, esports environments, or home entertainment systems, the VLSP-18H21S provides robust performance and seamless multi-screen output in a compact, reliable design.

Featured Highlights

  • HDCP 2.3 compliant

  • Support 48Gbps FRL and 18Gbps TMDS video bandwidth

  • Support resolution up to 8K@60Hz 4:2:0 12bit, 4K@120Hz 4:4:4 12bit, as specified in HDMI 2.1

  • Support VRR, ALLM, QMS, QFT, SBTM, as specified in HDMI 2.1

  • Support HDR, HDR10, HDR10+, Dolby Vision, HLG pass-through

  • Support HDMI audio formats: LPCM 7.1CH, Dolby TrueHD, Atmos, DTS-HD Master Audio

  • Support resolution auto downscaling on each output

  • Support auto converting of HDR to SDR on each output

  • Advanced EDID management

Specifications

Technical
HDMI Compliance     HDMI 2.1    
HDCP Compliance     HDCP 2.3    
Video Bandwidth     48Gbps   
Video Resolution     Up to 8K@60Hz 4:2:0 12bit, 4K@120Hz 4:4:4 12bit    
Color Depth     8/10/12bit    
Color Space     RGB, YCbCr_4:4:4, YCbCr_4:2:2, YCbCr_4:2:0    
HDR     HDR, HDR10, HDR10+, Dolby Vision, HLG    
Audio Formats     HDMI input/output:

LPCM, Dolby Digital/Plus/EX, Dolby True HD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
ESD Protection     IEC 61000-4-2: ±8kV (Air-gap discharge) & ±4kV (Contact discharge)    
Connection    
Input 1 × HDMI IN [Type A, 19-pin female]
Output     8 × HDMI OUT [Type A, 19-pin female]
Control 1 × SERVICE [USB Type C, Update port]
Mechanical    
Housing     Metal enclosure    
Color     Black    
Dimensions     250mm [W] × 104mm [D] × 30mm [H]
Weight    743g
Power Supply    DC 12V/2.5A   
Power Consumption     12.2W (Max)    
Operating Temperature     32 - 104°F / 0 - 40°C
Storage Temperature    -4 - 140°F / -20 - 60°C
Relative Humidity    20 - 90% RH (No condensation)
Recommended HDMI Cable
Video Resolution 8K 4K60 4K40 1080P
HDMI Cable Length

(HDMI IN / OUT) 		3m/9.8ft

(Ultra HDMI 2.1)		 5m/16ft 10m/33ft 15m/49ft
The use of the “Premium High-Speed HDMI” is highly recommended.    

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