Description
The KD-Pro4x1X-3 is a 4×1 HDMI switcher designed to route up to four HDMI sources to a single display while providing selectable audio de-embedding. It supports UHD and DCI 4K formats up to 60 Hz and provides HDCP 2.2 authentication for protected content. The switcher is intended for professional AV environments that require dependable switching and audio extraction.
Key features include automatic source detection and switching, analog and digital audio de-embedding, and support for HDR10 and Dolby Vision. The unit handles TMDS reclocking and EDID management to preserve signal integrity across sources and displays. Lossless compressed audio formats such as Dolby TrueHD and DTS-HD are supported for full multichannel audio pass-through.
Performance specifications include support for DCI 4K and UHD 4K at up to 60 Hz with 4:4:4 chroma and an 18 Gb/s data bandwidth. Deep color handling enables up to 12-bit 4:4:4 at 4K30 or 8-bit 4:4:4 at 4K60 depending on source capability. The internal buffering manages HDCP authentication to both sources and displays to ensure consistent handshakes.
Connectivity covers four HDMI inputs and one HDMI output, plus analog 3.5 mm stereo, balanced/unbalanced block line level, and optical S/PDIF outputs for de-embedded audio. Control options include front panel buttons, IR, optical IR, RS-232, trigger in, TCP/IP, and app-ready integration via Key Digital’s control ecosystem. The switcher also supports CEC passthrough and PTZ camera integration when combined with compatible Key Digital accessories.
Common applications include conference rooms, classrooms, huddle spaces, small theaters, and gaming setups where multiple HDMI sources must be presented to a single screen with separate audio distribution. The auto-sensing feature can automatically select a newly connected active source while status-monitoring LEDs provide clear operational feedback. The device can be paired with Key Digital amplifiers for combined audio and video control.
Installation is rack-friendly and includes mounting brackets and terminal connectors for balanced audio and control wiring. The compact chassis and included power supply simplify deployment in AV racks or furniture. Firmware updates and service access are provided via the micro-USB service port for maintenance and feature updates.
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.
UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations. UPS Ground does not deliver on Saturdays, Sundays or Holidays.
USPS Priority Mail/USPS Express Mail
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.
Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.
International Customers
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.
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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