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In Stock Same-day processing on in-stock orders Available to order; contact us to confirm lead time Contact us for availability
Same-day processing on in-stock orders. US orders arrive in 3–5 business days (AK/HI 5–7) · Expedited delivery (2–3 business days) is available for eligible items. Lead time is confirmed after you order. Contact us for availability. Tracking number emailed when your order ships. Shipping policy
Product Overview
Key Digital KD-S4X1X-2 4×1 4K HDMI Auto-Switcher with Audio De-Embed.
Key Features
The 4x1 4K HDMI Switcher with Auto-Switching & Analog/Digital Audio De-Embed from Key Digital is a high-performance, four-input HDMI switcher that supports up to DCI 4K30v 12-bit 4:4:4 video, or up to DCI 4K60 8-bit video. It also accepts SD and HD video over HDMI as well as VESA resolutions such as VGA, SVGA, XGA, WXGA, SXGA, and UXGA, while supporting a maximum data transfer rate of 18 Gb/s. It supports HDR10 (High Dynamic Range), which allows the unit to pass signals with a greater range of luminance values than an SDR signal.
The KD-S4X1X-2 features front-panel control, CEC-pass-through as well as IR control using the included IR remote control unit. It is HDCP 2.2 compliant and features 15 selectable EDID handshakes available in addition to the native EDID data that the switcher copies from the connected output display. The full buffer system manages TMDS re-clocking / signal re-generation, HDCP authentication to source and display, and EDID control handshake. The switcher supports a variety of lossless compressed digital audio formats including Dolby and DTS. Auto-switching with hot plug detection enabled (Forced HPD) allows the switcher to automatically switch to a new input when it is connected to a hot video signal.
Key Features HDMI Switching Switch four HDMI sources to one HDMI output 4K Support Support for up to DCI 4K 4096 x 2160 or UHD 4K 3840 x 2160p24/25/30/60 Hz at 4:4:4 (signals up to 18 Gb/s bandwidth) HDCP Support Fully licensed and compatible with HDCP 2.2 High Dynamic Range Supports HDR10 (High Dynamic Range) levels for more life-like images through a greater range of luminance levels Resolution Support Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, and UXGA) up to 4096 x 2160p Deep Color Support Support for up to UHD 4K30 Hz 4:4:4 12-bit or UHD 4K60 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-Sensing 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 and display, and EDID Control handshake EDID Management Internal library with 15 internal EDID handshakes including 4K with HDR are selectable via a front rotary knob. These selections are in addition to native EDID data copied from the output/display Lossless Compressed Digital Audio Supports Dolby TrueHD, Dolby Digital Plus, DTS-HD Master Audio, and Dolby Atmos CEC Pass-Through Pass-through is supported from a connected display to selected HDMI source Control Front-panel buttons/LEDs or Optical IR Control System Power The included power supply features a locking-type power connector to the switcher
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Same-day processing on in-stock orders; orders placed on weekends or holidays begin processing the next business day. For US orders: Standard 3–5 business days (5–7 business days to Alaska and Hawaii). Expedited delivery (2–3 business days) is available for eligible items and is quoted after you order. Backordered and special-order items ship on confirmed lead times. Estimates are not guarantees; weather, carrier delays, and remote destinations can extend delivery times.
We accept orders only with U.S. shipping and billing addresses (the 50 states and DC). We cannot accept international, APO/FPO, or U.S. territory addresses. We ship via carriers including FedEx, UPS, and USPS. Standard ground shipping is free on all U.S. orders. Expedited shipping is available for eligible items and is quoted after you order; nothing extra is charged without your approval.
Inspect your order on arrival. If an item arrives damaged, defective, or is not what you ordered, contact us within 48 hours so we can arrange a replacement or refund at no cost to you, including return shipping. If a package arrives damaged in transit, also keep all packaging so we can file a carrier claim.
Full policy: Shipping Policy Full policy: Refund & Return Policy
Most items can be returned within 30 days of the delivery date for a refund or exchange, and every return needs an RMA number. For a full refund, items may be opened but must be unused, in original condition with all accessories and packaging, and any free promotional items must be included. Except for damaged, defective, or mis-shipped items, you pay return shipping. Items returned incomplete, used, or missing original packaging may be subject to a restocking fee of up to 15% or a partial refund. Special-order, custom-configured, and clearance/final-sale items, opened software, downloadable content, gift cards, opened consumables and personal-use items, and items missing serial numbers or manufacturer packaging can’t be returned. Any exceptions are noted on the product page.
Once we receive and inspect your return, we email you to confirm approval. Approved refunds go to your original payment method, typically within 3–5 business days of inspection, and your bank or card issuer may take an additional 5–10 business days to post the credit. Original shipping charges are non-refundable unless the item arrived damaged, defective, or was shipped in error.
A manufacturer warranty may apply to an eligible product. Coverage, term, and claim process vary by product, condition, and manufacturer, so check the product listing and manufacturer documentation for the exact term. Open-box, refurbished, used, and final-sale items may have different terms. If warranty eligibility is important to your purchase, contact us before ordering so we can confirm the information available for this item. Our support team can also help locate documentation or start an eligible claim.
We accept Visa, Mastercard, American Express, and Discover cards, PayPal, and Google Pay on supported devices and browsers; checkout shows the options available for your order and device. Purchase orders, NET 30 terms, and wire transfers are offline and by arrangement only. Call us at (800) 581-6868 (Mon–Fri 9 AM – 6 PM ET), email support@audiovideonation.com, or use Live Chat when available.
30-day returns on most items (RMA required). For a full refund, items may be opened but must be unused, in original condition with all accessories and packaging
Return policyReport it within 48 hours for a replacement or refund at no cost, including return shipping
Damaged item policy