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Introduction
Key Digital® KD-S2x1X-2/KD-S4x1X-2 are 4K/18G HDMI switchers engineered to offer the best in
quality, performance, and reliability, while providing a cost-effective HDMI switching solution. Designed for
professional audio video installations in presentation, theater, and gaming spaces, KD-S2x1X-2/KDS4x1X-2
enables multiple video sources to connect to a single video display while L/R analog and Optical audio
de-embed ports may be used to feed audio of the selected source into amplifiers, DSPs, or sound bars.
Enable auto-switching to automatically select newly connected/powered sources or sequentially advance
from the currently selected source when it is disconnected/powered off. KD-S2x1X-2/KD-S4x1X-2 HDMI
switchers support all SD, HD, VESA and Ultra HD/4K video standards with HDR header information included
in a variety of 4K EDID handshakes. The switchers feature push button and optical IR switching, status-
monitoring LEDs, and support of HDR10, HDCP 2.2 and 4K.
Key Features
›
HDMI Switching:
2/4 HDMI sources to 1 HDMI output/display
›
Ultra HD/4K Support:
4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4 (signals up to 18Gbps)
›
HDCP Licensing
: Fully licensed and compatible with HDCP 2.2
›
HDR10 (High Dynamic Range):
More life-like images through a greater range of luminance levels
›
Resolution Support:
Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, UXGA) up to
4096x2160p.
›
Deep Color Support:
Up to UHD/4K 30Hz 4:4:4/12 bits or 60Hz 4:4:4/8 bit
›
Audio De-embedding:
Audio of the selected HDMI input is output at the digital Optical and analog
3.5mm stereo connectors
›
Auto-Switching:
Automatic selection of newly detected source and switching from newly
disconnected source via hot plug detection voltage when enabled
›
Full Buffer System
™
:
Manages TMDS re-clocking / signal re-generation, HDCP authentication to
source & display, and EDID Control handshake
›
EDID Management:
Internal library with 15 internal EDID handshakes including 4K with HDR in
addition to native EDID data copied from the output/display
›
Lossless Compressed Digital Audio:
Dolby
®
TrueHD, Dolby
®
Digital Plus, DTS-HD Master Audio
™
,
and Dolby
®
Atmos
›
CEC Pass-thru:
From connected display to selected HDMI source
›
Control:
Front panel button, optical IR, RS-232 via Micro USB Port and included adapter cable
›
Control System Support:
Compass Control
®
Pro ready. Fully controllable by all IR, and RS-232
supported control systems via open API.
Included Accessories
›
Power Supply: SK01T-0500100Z 5V/1A DC power jack, screw-in type
›
IR Remote Control: KD-RMSWPROK
›
Mounting Brackets: 2 L-shaped
›
Control Cable: 6ft RS-232 3.5mm TRS to Micro USB, KD-S2X1XUSB2RS
Table of Contents
›
Note:
for the latest product documentation and software downloads.
Product features and specifications are subject to change without notice.
© 2022 Key Digital, Inc. All rights reserved.
Always follow the instructions provided in this Operating Manual.
Visit product pages for most
recent version of the manual,
quick setup guide, firmware,
control drivers and all
additional downloads.