● 4K@60Hz 4:2:0 8bit HDR: Transmits uncompressed 4K@60Hz HDMI signal up to 40m/130ft, and 1080P@60hz up to 70m/230ft over a single Cat 6a/7 cable. Also supports Dolby Atmos, DTS:X, Dolby True-HD, DTS-HD Master, LPCM 2.1/5.1/7.1 CH. ● Multi-Functional HDBaseT Extender: Supports bi-directional PoE, IR, CEC and RS232, as well as automatic EDID management. HDMI 1.4/HDCP 2.2 compliant with HDR (4K@60hz 4:2:0 chroma subsampling only). ● Plug & Play, Excellent Compatibility: Works perfectly with PCs, game consoles and most HDMI display devices. No software or driver is required; just plug and play. ● Slim Appearance & Wide Applications: Compact and space-saving, as small as a smartphone. Ideal for digital signage, home theater, boardroom, classroom, meeting room, and any other locations requiring long-distance HDMI signal extension. ● Important Notes: This 4K HDMI extender is a transmitter and receiver kit; we don’t sell them separately. One transmitter can work with only one receiver. All accessories are also not sold separately. The extender is not HDMI 2.0 compliant. Please refer to the 4KEX70-ARC-H2 HDMI 2.0 extender if you need.
AV Access 4KEX70-L 4K HDMI extender is plug-n-play and easy-to-use. It boasts up to 4K video resolution, multichannel audio, and bi-directional IR/CEC/RS232/PoE. Let’s watch the video tutorial on the left to learn how it can be your best choice.
AV Access 4KEX70-L 4K HDMI extender is ideal for any applications where you need long-distance HDMI signal extension. Here are some applications for your reference.
Transmits 4K ultra HD HDMI signal from your equipment room in the basement to a large TV in the living room upstairs. Extends an HDMI source of your cable box in the living room to the dinning room or bedroom. Our 4K HDMI extender ensures you enjoy the sharpest image and finest audio.
Bar & Restaurant
Transmits 4K HDMI signal from your control room to the large TV in front of the tables, extends digital menu or advertising video to the digital signage inside or outside. Our 4K HDMI extender ensures your patrons enjoy the best screen viewing experience possible.
Retail Store & Shopping Mall
Transmits 4K HDMI signal from your equipment room to the advertising display device anywhere in your shops, extends promotion video to the digital signage inside or outside the mall. Our 4K HDMI extender allows you to promote your brand and boost business with superior video and sound.
Classroom & Conference Room
What if your HDMI source is far away from the projector screen installed in the front of a classroom or meeting room? This highly reliable 4K HDBaseT extender can be adopted to transmit 4K ultra HD video signal up to 40m/130ft, ideal for extending teaching materials and sharing contents.
Enjoy Finest Video and Audio
With the advanced HDBaseT technology, this HDMI extender can transmit 4K@60Hz (4:2:0) HDMI signal up to 40m/130ft, and 1080P@60hz up to 70m/230ft over a single Cat 6a/7 cable. It brings ultra-high definition picture with more vivid visual effect and no signal loss or delay. Also, it supports audio formats like Dolby Atmos, DTS:X, Dolby TrueHD, DTS-HD Master and LPCM 2.1/5.1/7.1CH.
Notes: 1. This 4K HDMI extender is not HDMI 2.0 compliant. Please refer to the 4KEX70-ARC-H2 HDMI 2.0 extender if you need. 2. It is recommended to use a Cat 6 or above cable for optimal picture quality.
Bi-Directional IR Control
This cost-effective 4K HDMI extender also supports bi-directional IR pass-through, and comes with an IR signal emitter and an IR receiver. Thus, you can easily control an HDMI source from the display’s location or control the display from the source’s location.
Bi-Directional PoE & RS232
Only one power adapter is needed to power both the 4K HDMI transmitter and receiver. And with bi-directional RS232 pass-through, you can effortlessly control both HDMI source and display at remote side, enjoying more convenience.
Work Perfectly with Other HDMI Devices
This 4K HDBaseT extender can work perfectly with PC, PS4/5, XBox, DVD Player, Apple TV, Satellite Box, Cable Box, etc. It is ideal for digital signage, home theater, boardroom, workshop, seminar, classroom, conference, gaming, video production, etc.
Ultra-Slim & Plug-n-Play Design
The 4K HDMI transmitter and receiver kit is compact and portable, as small as a smartphone. They are easy to install and space-saving; you can almost place them everywhere in your house. Besides, this HDBaseT HDMI extender is plug and play, no additional software or driver required.
Check if the “Link” LED indicator is solid on. Also, check if the “HDCP” LED indicator is solid on or blinking.
Make sure the source device and the display device are powered on. And make sure the source device is outputting video signal while the correct HDMI input channel is selected on the display device.
Connect the source device to the display device directly via an HDMI cable, then set the source resolution to 4K@30Hz or 4K@60Hz 4:2:0. If these two resolutions are not available, then set to 1080P. After you set the default resolution, please re-connect the source device and the display device to the HDMI extender.
Make sure all of your HDMI cables work normally. You can connect the source to the display device directly via one of these HDMI cables, to check if video can be shown normally on the display.
It is recommended to use a Cat5E/6/6A/7 cable, instead of Cat5 or flat cable.
Please make sure the total length of your cable is less than 70m/230ft for 1080P, 40m/131ft for 4K resolution.
Please make sure the connectors at both ends of the cable meet the IEEE T568B standard.
Use a new cable, or try crimping your Cat cable connectors according to the IEEE T568B standard.
If you need to use patch cables at both ends, the length should be as short as possible, no more than 5m/16ft. Please ensure all connectors meet the same standard (IEEE T568B). Also, please note that the total length of the patch cables and the Cat cable should not be over 70m/230ft.
Check if your IR connection method is correct. The IR receiver cable needs to be connected to the “IR In” port at one end, and the IR emitter cable needs to be connected to the “IR Out” port at the other end. Please note that the 3.5mm cable connectors need to be fully inserted into the IR ports.
Check if you use the remote controller correctly and if you place the IR emitter head correctly. When you use the remote controller, it needs to be directly facing the IR receiver head. Besides, the IR emitter head should be placed closely to the IR receiving window of the controlled device.
Try controlling the source device directly via your remote controller, without using the HDMI extender. Then check if the IR connection works.
No, this 4K HDMI extender contains one transmiter and one receiver. We don’t sell them seperately and they can only work through one-to-one direct connection. You may check our HDMI splitters, HDMI switches or extenders over IP (have to work with a network switch).
HDCP stands for High-bandwidth Digital Content Protection. This protocol is formed to protect digital audio and video content from being copied and distributed. Here to learn more about HDCP 1.4 & HDCP 2.2.
EDID is like an identity of a display that records information such as the display dimensions/screen size, original resolution, color properties, frequency range limits, etc. When the source device gets this information, it can deliver the image of certain specs accordingly. Learn more about EDID.
(If this information is not helpful to you, you can raise your question in our community.)
If you want to learn more about our HDMI extenders, here are some guides for your reference.