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In Stock Same-day processing on in-stock orders Ships after order confirmation 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. Ships after order confirmation. Contact us for availability. Tracking number emailed when your order ships. Shipping policy
Product Overview
Key Digital KD-EX18G 4K 18G HDR HDMI extender kit over single Cat5e/6.
Key Features
KD-EX18G is an HDMI extender Tx + Rx set with 4K/UHD resolution and bandwidth support up to 18Gbps and HDCP2.2 compliancy. In addition to HDMI video and audio signals, KD-EX18G carries IR for controlling remotely located equipment. KD-EX18G features 4K to 1080p down convert, EDID handshake control, and hot plug detection integration tools, as well as an HDMI pass-thru port for connecting to AV Surround Receivers or local monitors.
UHDoTP via Single CAT5e/6 UTP/STP Extension: With fully automatic adjustment of feedback, equalization, and amplification depending on cabling length
4K Resolution Support: 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4 (signals up to 18Gbps bandwidth)
4K to 1080p Down Convert: Optional resolution conversion applied at UHDoTP output provides added integration options in retrofit installations as well as added distance performance
10G Pass-thru: Mode enables uncompressed 10.2Gbps signal extension
Flexible Power over CAT (PoC): Only one power connection needed. Tx may power Rx, or Rx may power Tx
Low Profile: Slim chassis design
Signal Extension: 4K/UHD up to 35m (115ft) using CAT5e/6, up to 40m (131ft) using CAT6A STP. 1080p up to 50m (164ft) using CAT5e/6, up to 60m (197ft) using CAT6A STP
IR Sensor: Sensor powering via +5V on IR In port collects line-of-sight IR from remote(s) without external IR connecting block
HDMI Pass-Through: Enables connection to local monitor or AV Receiver
Surround Audio Support: HDMI pass-thru port supports Dolby®, Dolby® TrueHD, DTS™ and DTS-HD™ (formats up to 7.1), UHDoTP output supports Dolby®, DTS™ (formats up to 5.1/6.1
HDCP 2.2: Compliancy up to HDCP 2.2 and backward compliant
Deep Color Support: Up to UHD/4K 30Hz 4:4:4/12 bits or 60Hz 4:2:2/8 bit
EDID Control: Internal library with 15 EDID handshakes including 4K with HDR in addition to native EDID data from Output/Display device connected to Rx
Hot Plug Detection Control: Enables integrator to choose if active signal voltage is forced to connected display/output device
Full Buffer System™: Manages TMDS re-clocking / signal re-generation, HDCP authentication with source & display, EDID handshake control, and Hot Plug Detection control
Visually Lossless Compression: 18G enabling technology applied to all video formats exceeding 10.2Gbps to accommodate UHDoTP transmission channel
HDR10 (High Dynamic Range): More life-like images through a greater range of luminance levels
Up/Down IR: Two channels of IR enable control to/from devices or control system
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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. 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. 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