[Review&QnA] J-Tech Digital 4K USB KVM HDMI Extender Over Cat6/6a/7 Ethernet up to 328 FT (1080P), Supports HDMI 1.4 HDCP 1.4, 2 x USB 2.0, Near Zero Latency
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[Review&QnA] J-Tech Digital 4K USB KVM HDMI Extender Over Cat6/6a/7 Ethernet up to 328 FT (1080P), Supports HDMI 1.4 HDCP 1.4, 2 x USB 2.0, Near Zero Latency
About this item
- ✔ 4K@30HZ UP TO 328 FT – Extend 4K 30Hz & 1080p HDMI signals up to 328 feet / 100 meters away over CAT6 ethernet cable. High resolution 4K image extension with near zero latency (ideal for PC use).
- ✔ DUAL USB 2.0 (480 Mbps) KVM EXTENSION – 2 x USB ports found on the receiver extend USB 2.0 signals up to 328 feet away over CAT6 ethernet cable. Plug and play installation makes setup a breeze with no need for additional drivers.
- ✔ DUAL HDMI OUTPUT PORTS ON RECEIVER – Connect two HDMI displays to the receiver’s dual HDMI output ports and a local HDMI display to the transmitter’s local loop HDMI output port for flexible monitoring options.
- ✔ 3.5MM AUDIO EXTRACTION PORTS – Extract source device audio via the 3.5mm analog audio output ports found on both the transmitter and receiver. Flexible audio routing options mean that you can incorporate 3rd party audio processors with ease.
- ✔ FREE LIFETIME TECHNICAL SUPPORT – All J-Tech Digital products include a One-Year Manufacturer Replacement Warranty and free lifetime technical support from our customer support team located in Sugar Land, TX. Support is available from 9AM – 6PM CST, Monday through Friday. Contact information available on our seller page.
Reviews
★★★★★
Style: Single Cable 4K | Verified Purchase
Great picture quality
I purchased several of these units to replace my old (RGB) component-over-CAT5 system. As my new TVs have transitioned to HDMI, my old system no longer supported the best picture standard (and some sets don't even have RGB inputs). Replacing the old RGB-over-CAT5 units was simple and the new system works well. So far, I am transmitting only 1080P content, with excellent picture quality. I intend to begin using 4K content and will update if anything is amiss.
I like that the power comes from the transmitting end, so I don't need an outlet or power supply at the TV. One downside is that the old RGB system "lived" behind a wall faceplate, presenting a clean look at the TV. In reality, most installations effectively hide the HDMI receiver unit behind the TV set and a "blank" faceplate with a clean hole provides a transition for the CAT5 cable from the wall--which I prefer over yet more connectors in the signal path by using a CAT5 outlet plate. So far, I am using only the picture transmitting capabilities as the existing sound transmission system (goes to free standing local speakers, not the actual TV speakers) is better in so many ways than the speakers inside most TVs. My control system works as before and does not require the IR over CAT5 capability, so that feature was not put to the test either (though J-Tech includes all the cabling for remote IR connectivity!). Still, that additional flexibility is a nice to have for future expansion. Not well described in the product description, is that the system has blue lights in both sender and receiver, which are very informative to indicate proper connection of power and signals. Some black tape might be added to dim the blinking in a dark room.
One other minor complaint is this version does not fully support routing a single CAT5 to multiple receivers and these receiver/transmitters are sold only in pairs. It is not clear which functions would be disabled and for now, this does not impact my system. J-Tech has other models which support multiple receivers from a single CAT5 line. J-Tech technical support was excellent and very helpful in my rather complex situation.
A final comment is that the quality of HDMI cables varies--even ones claiming to be HDMI2 or 4K compatible. I had a few problems at installation including 4 J-Tech pairs, and EVERY issue was traced to a bad HDMI cable. You will need a several HDMI cables--buy the best--and then swap suspect cables around till you find the bad one(s).
★★★★★
Style: Single Cable 4K | Verified Purchase
Excellent Technical Support and Clear Picture
So I read all the reviews on this product and ones just like it. But from all my research it seemed J-Tech was one of the best so I purchased the extender. Seemed simple enough. Plugged everything in, and nothing. No picture. So I spent a day troubleshooting myself. I made sure all the components worked on their own when not connected to the extender. So had to be the extender right? So I sent a lengthy email to J-Tech. The next morning Nathon G. from tech support responded and asked me to try a different troubleshooting technique to make sure the extender was working, which I was able to confirm it was. The next day he sent me information from my monitor manual and recommended I reduce the refresh rate on the NVR. Wouldn't you know it? Boom working like a charm. Excellent response time and a very thorough review of the other components in my system, that were actually causing the problem. I will definitely purchase J-Tech in the future as well as recommending their products.
★★★★★
Style: Single Cable 4K | Verified Purchase
Flawless execution
When my in-wall HDMI cable started to sketch out, I feared that I'd be tearing out the wall and doing a lot of drywall work - of which I'm not a fan. However, I also had a couple of unused CAT6 wires in that same path (what with everything being wireless now), and set out to find a solution that used them.
What could have been a weekend project turned into a 30 minute fix, thanks to this device. I'm not using the IR capability, but based on the performance of the HDMI functionality I have no doubt this is a quality product that works as it is intended to. I considered giving it four stars for what I feel is a somewhat inflated price, but given the amount of time and effort it saved me, five it is.
★★★★★
Style: Single Cable 4K | Verified Purchase
Support is good and U.S.A based. Product works well so far after a few weeks.
Product is used in a classroom setting where the presenter table has a connection to the wall. The HDMI to Cat5/6 box is mounted under the table. The wall connection proceeds inside and up the wall across the ceiling to the projector where the other cat5/6 receiver resides. Might be a total of 30 ft from one end to the other. Everything is working so far. We have different instructors coming in all the time and a wide variety of laptops with all types of HDMI or USB C type ports. Only time will tell whether the converter works with all the computers we host. We keep all the appropriate HDMI and USB C adapters on a ring attached to the HDMI cable.
★★★★★
Style: Single Cable 4K | Verified Purchase
It Just Works
I wish I had bought this J-Tech system before the three previous systems. Unlike those, these actually work with no audio or video dropouts. Running a media computer with 1080P output to a TV about 75 wire feet away with Cat 5E in the walls, so replacing the cable with Cat 6 or Cat 7 wasn't an option. Wish it had an integrated local HDMI output on the transmitter, but it works fine with a separate HDMI 1->2 splitter. The bidirectional IR is nice, but I won't be using the secondary TV to control the system.
★★★★★
Style: Single Cable 4K | Verified Purchase
Great Picture; Simple Setup
Connection sequence: MacBook Pro; short T-bolt3 to HDMI cable; Transmitter w/ power; 50ft Cat 6a cable down/up/around; Receiver; short HDMI to HDMI into TV. Amazing picture. Allows me to send high-quality graphics, spreadsheets, brainstorming, presentations, etc. on an extended laptop/desktop display. Was a bit skeptical, having not used this particular product. But would definitely recommend!
★★★★★
Style: Single Cable 4K | Verified Purchase
Quick test, and very satisfied.
Did a quick test on the product connecting my PS4 with my Panasonic HD TV.
I used a CAT6 cable to ensure the best throughput, and the video quality looks great and smooth.
The installation was quick and easy, basically, just plug and play.
I bought this product quite hastily and didn't notice only the transmitting unit needs to plug into power, which is a nice thing that I don't need to plug in the receiver which I plan to stick it up behind my TV.
The packaging is quite nice and with good foam protection preventing damage.
★★★★★
Style: Single Cable 4K | Verified Purchase
Works great
Plug and play. No fuss, no muss. If your conference room HDMI cable run is going to be longer than 25 feet and segmented so that it terminated at a floor plate, you will need one of these. Having this in the first place would have saved me a lot of time and effort. No special setup needed. Just run the Cat cable and connect these as instructed. The cheaper, HDMI extender solutions DO NOT work. The more expensive solution might work as well, but these do just fine. You'd only want to get the more expensive solutions if you're going to be connecting one source device to multiple displays or doing some other trickery. When you're providing solutions for non-technical end-users, you want to keep things as simple as possible. I Also love the fact that the receiver is PoE powered by the transmitter! I've read reviews of other devices that both RX and TX have to be plugged in, and one or both units get pretty hot. Not these!!
★★★★★
Style: Single Cable 4K | Verified Purchase
Fantastic product. Cat5e compatible for 4K and PS5
This was fantastic. Had an old extender running cat5e about 55ft that would not handle my new PS5/4K. I was nervous I’d have to buy one of those $300+ extenders and was also worried the cat5e wouldn’t handle the signal. This worked like a charm. Easy set up, sleek to fit in recessed areas behind tv. Great product. 👍
★★★★★
Style: Single Cable 4K | Verified Purchase
This is it!
Needed an upgrade for my old transmitter. Easy install with my Cat-6 wall wiring to get the image from my hidden receiver to my wall mounted TV across the long distance. Picture perfect quality without interruption from vibrations. My old transmitter always flickered with vibrations and this one never is affected.
Question & Answer
Question :
What voltage is the power adapter?
Answer :
DC 5 Volt power supply.
Question :
does this support ARC
Answer :
No, this unit does not support ARC.
Question :
Can these be routed thru a managed switch on a network keeping traffic separate from the rest of the network?
Answer :
These units will not work through a network switch since they don't support TCP/IP.
Saud
Support Team
J-Tech Digital, Inc
Question :
I don’t have a 4k projector yet, but can i but the 4k and use on my 1080p and still work? of course i know the projector won’t be 4k.
Answer :
Yes. Works at all resolutions.
Question :
How long the hdmi cable can be on receiver side?
Answer :
As long as it needs to be. However, for our setup which is a long run, we used CAT 6 cable to make the run.
Question :
Has anyone tried to see if it will support 4k at 60hz with dolby vision?
Answer :
These extenders do not support 4k at 60Hz with Dolby Vision. For Dolby Vision support, please view our model JTECH-UHDT150 (Amazon ASIN: B08L8HJFLS)
Question :
Does this come with both the transmitter and receiver? And can you buy just the receiver and what is the part number?
Answer :
It is a set: both transmitter and receiver.
Question :
Do both boxes have hdmi ports?
Answer :
Yes. The port on the 'send' box connects to your A/V source, and the port on the 'receive' box connects to your TV/Monitor.
Question :
what is the J-Tech model number?
Answer :
The model number is JTECH-4K-EX-HDBaseT.
Question :
Does it work with cat 7 cables? Is solid copper ethernet cables needed?
Answer :
Solid should always be used for best transmission. Everything else is a patch cord (sometimes stranded copper) a slow down point. CCA is not recommended for high speed. Ok for data. Also solid will give a better connection with RJ45
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