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Key Digital KD-S4x1X-3 4×1 4K HDMI Switcher / Auto-Switching / Audio De-Embedding / HDR10 / HDCP2.2

SKU: KD-S4x1X-3
Brand: Key Digital
$232.00
Brand Key Digital
SKU KD-S4x1X-3
Weight 1.00 lbs
Warranty 3 Years
Condition New
Status Available
Expert

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Description

The KD-S4x1X-3 is a 4×1 HDMI switcher designed to consolidate multiple HDMI sources onto a single HDMI output while preserving advanced video and audio formats. It accepts SD, HD and VESA resolutions and supports DCI 4K and UHD 4K video at variable frame rates. The unit is built to manage modern HDMI workflows while providing automated source selection and professional signal handling.

Primary features include auto-switching via hot plug detection, audio de-embedding to optical and analog outputs, and an internal full buffer system that handles TMDS reclocking and HDCP authentication. The switcher supports HDR10 for expanded luminance range and selectable EDID handshakes for predictable source/display negotiation. Front-panel controls, CEC passthrough, and IR control provide flexible operator interfaces.

On the video side the KD-S4x1X-3 supports up to DCI 4K30 at 12-bit 4:4:4 color processing and up to DCI 4K60 at 8-bit 4:4:4, delivering signals up to an 18 Gb/s data rate. The full buffer system performs TMDS reclocking and signal regeneration to maintain signal integrity over connected paths. HDCP 2.2 compliance ensures compatibility with protected 4K content sources and displays.

Connectivity includes four HDMI inputs and one HDMI output plus optical S/PDIF and 3.5mm stereo analog de-embedded outputs for downstream audio systems. EDID management includes 15 selectable handshakes plus native EDID copy from the connected display for consistent source behavior. Control options include front-panel buttons/LEDs and optical IR control for remote operation.

The KD-S4x1X-3 is suited to conference rooms, digital signage endpoints, and small broadcast or production environments where multiple HDMI sources must be prioritized and routed to a single display or processor. It is also appropriate for AV racks that require HDR passthrough and de-embedded audio feeds for audio processors. The auto-switching feature simplifies source management in dynamic environments where sources are frequently connected or disconnected.

Installation is straightforward thanks to its compact footprint, front-panel operation, and standard HDMI and optical connectors – making rack or shelf placement simple. The switcher is engineered with a locking-type power connector interface for secure power connections and a robust metal enclosure for sustained operation. Its combination of advanced EDID control, HDCP handling, and audio extraction supports reliable integration into professional AV systems.

Specifications

HDMI Switching4x1
4K Support4096x2160@24/25/30/60Hz 4:4:4 up to 18Gb/s
HDCP SupportHDCP 2.2
High Dynamic RangeHDR10
Resolution SupportSD, HD, VGA, SVGA, XGA, WXGA, SXGA, UXGA up to 4096x2160
Deep Color SupportUHD 4K30 4:4:4 12-bit, UHD 4K60 4:4:4 8-bit
Audio De-EmbeddingOptical TOSLINK, 3.5mm analog
Auto-SensingForced HPD auto-switching
Full Buffer SystemTMDS reclocking, HDCP authentication, EDID handshake
EDID Management15 selectable EDIDs, native EDID copy
Lossless Compressed Digital AudioDolby TrueHD, Dolby Digital Plus, DTS-HD Master Audio, Dolby Atmos
CEC PassthroughCEC passthrough
ControlFront-panel buttons/LEDs, IR remote
PowerLocking 5VDC supply
Switching TypePushbutton
Processing ResolutionDCI 4K at 30
Color Processing12-Bit 4:4:4
Video Inputs4x HDMI Female
Input Video FormatHDMI 8/12-Bit 4:4:4
DCI 4K at 60 fpsSupported
Embedded Audio InputHDMI per input
Video Outputs1x HDMI Female
Output Video FormatHDMI 8/12-Bit 4:4:4
DCI 4K4096x2160
Audio Outputs1x 3.5mm TRS stereo, 1x TOSLINK S/PDIF
Output Audio FormatAnalog, S/PDIF
Embedded Audio OutputHDMI
Digital Audio DecodingDolby Atmos, Dolby Digital Plus, Dolby TrueHD, DTS, DTS-HD
HDCP SupportYes Version 2.2
HDR SupportHDR10
OS CompatibilitymacOS, Windows, Linux
WirelessNo
Power I/O1x Barrel 5VDC 1A
CertificationsCE, RoHS, WEEE
Dimensions7.7 x 3.5 x 0.8 in / 19.6 x 8.9 x 2 cm
Weight14.4 oz / 408 g

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For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.

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We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.

Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.

PAYMENTS ACCEPTED:

  • Major Credit Cards: Visa, MasterCard, Discover and American Express.
  • Paypal: You can select an option of Paying with Paypal in our shopping cart.
  • Money orders: and personal checks or company checks (may take up to 10 days to clear).
  • Wire Transfer: ( Bank Transfer ) Only for the amount over $500. Contact us for the bank details.
  • Phone Orders: To place a phone order please call 1.888.902.3309 or 1.916.246.6264 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).
  • Purchase order: Fax purchase orders to 1.916.672.2557

We Offer A 30-Day Money Back Guarantee:

Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

Refunds:

Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

Exchanges:

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

  • TVs and monitors 20" and larger
  • Special Order merchandise
  • Any item indicated on the website as non-returnable

For more information see our official Return Policy

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Return Policy

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We Offer a 30-Day Money Back Guarantee

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