Last Updated: October 30, 2020 (Refresh Now)
TESmart HDMI 4K Ultra HD 4x1 HDMI KVM Switch 3840x2160 60Hz 4 4 4 with 2 Pcs 5ft KVM Cables Supports USB 2 0 Device Control up to 4 Computers Servers DVR
Last Updated: October 30, 2020 (Refresh Now)
6.9
SCORE
/10
Total Reviews
313
Old Reviews
51
Unverified
23
Spam Test
PASS
4K
RESOLUTION
Yes
HDMI
No
USB
Review Analysis - 239 recent, verified reviews
Detailed Mode
Ports
123kvm, port, usb, kvm switch, computers
+65%
-35%
" ... What is important to note is that you MUST connect the USB cables WITH the HDMI to each computer to get your mouse and keyboard working properly. ... "
" ... Used long usb and hdmi extension so my 3 computers (video editing, main server and security cam computer) can all use the same monitor and keyboard/mouse. ... "
" ... Only reason I gave it 4 stars instead of 5 stars was that I wish it had true powered usb 3.0 ports. ... "
" ... Happy with my decision to buy this kvm. ... "
" ... Works perfectly with a couple servers I have and a Lenovo laptop that connect via a usb-c hub to the KVM. ... "
" ... It's an ok KVM. ... It needed to be paired with a small 4 port USB hub (Anker 4-Port USB 3.0 Ultra Slim Data Hub ) to handle my control surfaces and the Logitech dongle. ... "
" ... If you want to hook up more than two computers your going to need to purchase more cables. ... "
" ... This is my second unit, it replaces the 2 KVM unit that I had before. ... "
Device Compatibility
83computers, mac, linux, switching, switch
+76%
-24%
" ... I originally purchased the dual-monitor KVM model that supports two computers. ... After trying the 2-monitor model without success, I decided to try TESmart's single-monitor models. ... "
" ... I use it for a home lab with multiple NUCs. ... "
" ... I have a PC, a Mac Mini and a Raspberry Pi currently connected to it ... "
" ... This is when I started looking for a KVM switch. ... "
" ... This allowed me to make room for my desk which was cluttering up with multiple laptops. ... "
" ... The TESmart EDID works well and both computers stay on the current layout and settings each time I switch. ... "
" ... I use it to switch between a Mac, windows, and Linux computer. ... "
" ... I have refurbished over 30 computer so far using this kvm and it hasn't given my any problems. ... "
Keyboard
79mouse, keyboard and mouse, kvm, port, mouse and keyboard
+56%
-44%
" ... - Apple Magic Keyboard 2 ... (6) There are three USB inputs: 1 each dedicated keyboard and mouse inputs, and 1 generic USB 2.0 input. ... "
" ... - Logitech K350 wireless keyboards (which don't have dedicated Scroll-Lock key): the KVM commands will work only if the Unify receiver is in one of the dedicated Keyboard/Mouse ports ... "
" ... 1. fast and reliable HDMI video and mouse/keyboard INSTANTLY, no noticeable delay ... 4. amazing support for wireless mouse and keyboard (my Logitech unifying shared for mouse and keyboard, receiver works on the only USB port and "one of" the mouse/keybaord port) ... "
" ... The wireless keyboard (FENIFOX USB Full Size Quiet Compact Compatible with iMac Mac PC Laptop) worked just fine otherwise. ... The button to switch between devices is bright yellow which makes it easy to spot in lower light even though it's not backlit. ... "
" ... I love that you can press "Scroll Lock" twice and the number on the keyboard to instantly switch between each computer. ... "
" ... What is important to note is that you MUST connect the USB cables WITH the HDMI to each computer to get your mouse and keyboard working properly. ... "
" ... I watched the video and they suggested using the extra USB slot for the keyboard. ... "
" ... The keyboard and mouse is working fine. ... The Mac mini is working fine with the logitech keyboard and mouse. ... "
Mouse
69keyboard, keyboard and mouse, kvm, mouse and keyboard, port
+57%
-43%
" ... Low profile, everything out of the way, easy access switches on the front, supports wireless mouse and keyboard PLUS the handy remote OR handy keyboard Hot Keys make this the most versatile KVM ever! ... "
" ... It uses a USB-B to USB-A cable to support the mouse and keyboard. ... "
" ... My Microsoft ergonomic keyboard and wireless mouse worked as well though I have not used any special function keys on those. ... "
" ... Using wireless keyboard and mouse with no connectivity issues. ... Wireless mouse and keyboard are still shared seamlessly. ... "
" ... I've been wanting to fix my cluttered desktop with 3 computers and 2 monitors and separate mouse keyboard for each. ... "
" ... USB mouse and keyboard work, even gaming keyboards. ... "
" ... Works well with a Logitech Unifying Wireless Receiver in keyboard port. ... My Logitech K800 wireless keyboard hot keys function nicely for switching computers. ... "
" ... I run it with a wireless keyboard/mouse combo so my desktop is very clean (all the wires are hidden behind the monitor). ... "
Resolution
50monitor, 4k 60hz, resolution, kvm, hdmi
+88%
-12%
" ... It does of course work flawlessly with these computers, and the display on my 34 inch 4K monitor is just as good as if the computers were each plugged in to the monitor directly. ... "
" ... Only tested 1080p so far. ... "
" ... This is the *first* KVM I've tried that actually just works for 4K@60Hz 4:4:4. ... "
" ... - A macbook pro (4K @ 60Hz) ... - A windows 10 PC w/ a gaming video card (4K @ 60Hz w/ HDR10) ... - A linux PC (4K @ ??) ... - A 32" MSI HDR 4K 60Hz monitor (mag321curv) ... - Inability to pass a HDR signal through properly ... - I'd love to see USB 3.0 or 3.1 support, so that I could connect a 4k webcam and "bring it with me" as I change video sources ... - I'd gladly pay 200% of this item's price for a dual-monitor version (2x 4K @ 60hz HDR) ... "
" ... The fact it supports 4k HDR10 and 4K HDR12 (Dolby Digital) is amazing. ... My Vizio only has one HDR UHD HDMI input so this was a must for me. ... 4K HDR + Dolby vision compatible ... "
" ... This one works great and produces a clear HDMI picture! ... "
" ... Running 2 Windows 10 PCs and 1 Linux (Ubuntu) PC through this KVM at 4k 60hz resolution without any monitor issues. ... "
" ... The switching works as advertised, switches between 4K and other (typically 1080p) video sources without trouble. ... "
Product Reliability
37months, unit, issues, kvm, failed
+46%
-54%
" ... At first this was just a minor inconvenience but it became quite frustrating when it was happening more often then not. ... "
" ... Bought in April, failed in July. ... "
" ... Channel 1 video quit working after a few minutes, so I returned it. ... "
" ... Performed the following testcases and unit always behaves intermittently: ... Will wait 1-2 years until TESmart products are stabilized. ... "
" ... The first new one was dead on arrival and was exchanged for a second, new one, which also failed in pretty much the same way: After turn on, it works for at most 30 *seconds*, then freezes. ... Unfortunately, the bottom line is simply that I got two defective units in a row and won't go through the hassle to try again. ... "
" ... This morning (May 10th) the second unit has failed in the exact same way as the first unit. ... Spending $115 on a KVM every few months is not what I consider quality. ... "
" ... After a month it has started blinking off and on. ... "
" ... Great product but it does not last more then a month. ... The third unit failed in less then a month. ... The first port just stopped working. ... "
Remote
30control, battery, switch, use the remote, used the remote
+70%
-30%
" ... It's very nice that I can switch between machines with either the remote, the switch, or via hot key and the switch does if flawlessly, very smooth. ... "
" ... -the c2025 battery for the remote is not there _although_ the plastic tab is hanging out that indicates the battery is present and not in contact with the contacts. ... "
" ... I knew this was likely to be needed, plan B being the remote switcher. ... "
" ... It comes with all the cords needed and even a remote for faster switching. ... I use the remote frequently! ... "
" ... I guessed at 2032 and the remote now works perfectly. ... "
" ... * I have not tested the wireless remote and have not have any communication with any technical support. ... "
" ... remote or unit selector works great. ... "
" ... The remote is nice, but we don't use it as the units are right at our finger tips. ... The remote control does solve that though. ... "
Cables
29cable, kvm, computers, switch, comes
+69%
-31%
" ... I then attached a third laptop with a couple of cables I already had, and voila! ... "
" ... The unit works well switch-wise and I appreciate it came with the 2 sets of cables. ... "
" ... CPU 3: Dell XPS 8700 (using cable provided with TESmart switch) ... "
" ... I highly recommend this product if you want to get away from switching cables manually. ... "
" ... The included cables are great and work as expected. ... "
" ... Came with the cables and I had it up and operating in less than 5 mins. ... "
" ... The 4 port unit comes with two cables and I bought a pack of two more. ... "
" ... I will work with TESmart about getting a replacement cable. ... "
Display Clarity
26screen, monitor, switch, resolution, kvm
+54%
-46%
" ... I highly recommend this LG monitor (LG 32QK500-W 32-Inch QHD (2560 X 1440) IPS Monitor with Radeon Freesync Technology and On-Screen Control) for this setup. ... "
" ... I can say that the display part works nicely. ... "
" ... I usually run at a resolution of 3840x2160 @60Hz and have had no problems. ... "
" ... Resolution is as advertised. ... "
" ... Without it, when you switch off a PC then the PC will think the monitor was disconnected and take it out of the display space and rearrange any program windows onto any other available displays. ... "
" ... It worked great for a few months but now one of the lights of the front, that tells you which screen is active, doesn't work. ... "
" ... Using a 1200p display. ... "
" ... I use a 21:9 3440x1440 display and it works seamlessly. ... "
Controls
25switch, button, mouse, keys, keyboard
+32%
-68%
" ... Pressing the "Select" button on the front panel did nothing. ... Using the hotkey to switch did not work either. ... "
" ... (1) Strangely, the physical button on the device used to change the active source does not work 100% of the time. ... It has 21 buttons, but literally >80% of them are non-functional for the use of this particular device. ... "
" ... Switch apparently cannot transmit multimedia keys to either PC--i.e. ... play/pause/stop/skip etc. ... "
" ... Remote buttons take time to break in. ... "
" ... The yellow button on the front of the unit also has no more effect. ... "
" ... Things I like: KVM control on the Control key (double-press). ... No UI, no buttons to push - have mine mounted below the desk. ... 1. sometimes the double-press on the Control key doesn't make the switch beep. ... Why not _either_ Control key? ... "
" ... I actually got into the habit of pressing Ctrl-C / Ctrl-V several times to make sure it "took'. ... "
" ... My gaming mouse did not work at all when sensitivity was raised beyond the lowest setting, and special mouse controls did not work. ... "
Price
25money, 4, value, point, 1
+84%
-16%
" ... So far I am very impressed with KVM for the money. ... "
" ... So far I'm still very happy with the switches performance especially at this price point. ... "
" ... Fantastic KVM all around for the money. ... "
" ... That being said this is a very nice little KVM for the price. ... "
" ... For the price I paid, it does a good job ... "
" ... And at 1/4 the price too. ... "
" ... I was in my local big box store looking a comparable KVMs at twice the price. ... "
" ... For the price this is hard to beat. ... "
USB
20usb hub, 3, kvm, ports, hub
+50%
-50%
" ... I'm trying to declutter, not attach a new USB hub. ... "
" ... With the USB connected to either Mini, it would not boot up. ... "
" ... Unfortunately there is only one general-purpose USB plug. ... "
" ... I'm trying to declutter, not attach a new USB hub. ... "
" ... Powered J5 Create USB hub ... "
" ... The USB is simply dead or sends out random data to the computer. ... "
" ... My biggest complaint about the KVM is the USB on the device is Extremely slow and would have been better if the manufacturer included USB 3.0 ports. ... "
" ... to remedy this, there is a generic usb port on the kvm. ... "
Software Platform
19windows, raspberry pi, mac, windows 10, kvm
+63%
-37%
" ... I would have given 5 stars except for these Mac issues - PC and Linux work without issue. ... "
" ... It works great on my Windows machine! ... "
" ... - Online tech support via chat on the tesla-smart.com website gives instant help. ... "
" ... * Will update review once seller sees this comment and sends a device that has been tested and works with zero issues. ... "
" ... What this really means: If you had application windows that were displaying on the KVM monitor and you are multimonitor . ... The windows will be hidden when you switch to a different computer. ... "
" ... Purchased this switchbox for using my 32" 4k with my PC, Mac, and occasional laptop and raspberry pi. ... "
" ... I use it to switch between a Mac, windows, and Linux computer. ... "
" ... It makes throwing on an ODroid or Raspberry Pi up for a quick config a breeze while I have my home and work machines constantly connected. ... "
Setup
15easy, plug, play, instructions, works
+93%
-7%
" ... Easy to setup and easy to use. ... "
" ... The KVM is Extremely easy to setup. ... "
" ... Thought I should write a review since I have a fairly complicated setup that might be similar to what others are looking to do with this. ... Setup: setup was straightforward. ... "
" ... My setup includes the following: ... "
" ... My current setup involves the following sources ... - Everything critical about this whole setup works ... "
" ... This was so easy to install and had great youtube videos to show me each step. ... "
" ... the install was simple and straight forward. ... "
" ... I received the switch today and installed using the default settings and supplied cables in 15 minutes or so without any issues. ... "
Marketplace
14works as advertised, unit, returned, replaced, advertised
+71%
-29%
" ... (Included some pics to help show what I mean). ... "
" ... Works as advertised. ... "
" ... Thank you very much! ... "
" ... Very pleased with the Amazon return policy. ... "
" ... It works as advertised. ... "
" ... "Thank you guys . ... Thanks again David and Niral for the great support. ... "
" ... Works as advertised. ... "
" ... This was really confusing but apparently due to shipping rules to some companies. ... "
Ease of Use
12use, setup, switching, difficult, install
+92%
-8%
" ... this makes getting on the BIOS on my servers very easy. ... "
" ... Easy to use, works out of the box. ... "
" ... Switching between the computers is a breeze. ... "
" ... the install was simple and straight forward. ... "
" ... so simple and easy. ... "
" ... Easy to setup and easy to use. ... "
" ... Easy to hook up and use. ... "
" ... The KVM is Extremely easy to setup. ... "
Returns
12returned, amazon, unit, send, window
+8%
-92%
" ... There was no option to replace this item, only choice was for a full refund. ... Returned to Amazon for a full refund. ... "
" ... Thus, I'm giving this a one-star review because it broke one day after the "return window". ... "
" ... Too late for me to return it. ... "
" ... I will be returning the original unit tomorrow. ... "
" ... DOA out of the box, but I will exchange rather than return, could just be one lemon ... "
" ... The replacement unit DID NOT have any of the issues I described above, EXCEPT: ... "
" ... I returned the first unit and bought a second one and it failed in the same way: ... I hope the manufacturer will troubleshoot the returned products and will fix this big problem. ... I returned all of them through Amazon. ... "
" ... Very disappointed with this product and wish I could return it for my money back and select something that does work. ... "
Sound Quality
11sound, speakers, noise, get, back
+64%
-36%
" ... - There's some sort of USB audio interface that works surprisingly well, so you get sound from the currently active source ... "
" ... HDMI from RPi4 pipes audio to computer monitor speakers. ... "
" ... Also passing Audio from all sources through the KVM back to pulse audio and sound switches right along with everything else. ... "
" ... The audio output on the back was the feature that sealed the deal for me. ... "
" ... The audio output on the back was the feature that sealed the deal for me. ... "
" ... Built in Audio Beep to confirm input switching ... "
Design
11design, sleek, would, quality, nice
+82%
-18%
" ... It also looks and feels well built. ... "
" ... Case is "stylish" but would have preferred a regular rectangular shape. ... "
" ... Looks, feels, and runs like a quality product. ... "
" ... Looks really good, but might not be ideal in small spaces. ... "
" ... - slim attractive design ... "
" ... Other than that, it sits on my desk, looks very sleek too. ... "
" ... It looks 👀 really nice 👍. ... "
" ... Sturdy build quality and sleek design ... "
Build Quality
11quality, would, twisted, switch, metal
+91%
-9%
" ... Solid construction - can likely withstand a few smacks, though I haven't tested this ... "
" ... It has a good build quality. ... "
" ... Both of TESmart units I purchased looked great and are solidly constructed. ... The shells are made of metal and buttons seem to be durable and high quality. ... "
" ... Construction, materials and finishing seems very high quality, you won't be disappointed with that aspect I am sure. ... "
" ... The case for the KVM is made from steel which gives it a great feel to it. ... "
" ... Hardware itself seems cheap but it performs perfectly. ... "
" ... Case is "stylish" but would have preferred a regular rectangular shape. ... "
" ... It also looks and feels well built. ... "
Gaming
9mouse, fine, work, games, game
+44%
-56%
" ... However, when playing a video game I experienced (1) keys not being passed through to the machine and (2) keys persisting being pressed after release ... "
" ... Forget about playing games with this KVM, the screen will blank at the worst possible times and you will end up dead. ... - Gaming keyboard and mouse not well supported. ... It all goes to hell when you plug in a 4K, 60Hz video feed, or try using gaming accessories. ... In summary, fine for office work, but unsuitable for gaming. ... fine for watching TV or movies, but terrible for gaming. ... Happened a few inopportune times in-game while being chased through a dungeon by a horde of angry undead orcs. ... "
" ... Fine for most uses, but Skyrim SE is unplayable with the switch in use. ... "
Features
9wanted, two, set, nice, main
+100%
" ... I looked around for a 4K switch and this was the only one for around 100$ with two main features I wanted ... I still give it a 5 star because it has the main features I wanted over anything else I found. ... "
" ... And the features that come with this unit are amazing! ... "
" ... It's a good feature set, and rapid at switching between machines. ... "
" ... This KVM has all the features you could want in a KVM for just over $100. ... "
" ... Having two sets of LEDs, one set showing the current selection, and the other showing which devices are active, is a nice feature. ... "
" ... This is a nice quality KVM that offers a number of convenient features. ... "
Overall performance
7smooth, performance, speed, running, price
+86%
-14%
" ... Just as you would expect a KVM switch to do its job. ... "
" ... So far I'm still very happy with the switches performance especially at this price point. ... "
" ... Switching is fast and responsive. ... "
" ... I'm using this in combination with a virtualized desktop environment with a separate GPU on pass through and everything performs super smooth without issues. ... "
" ... I got VERY fast, excellent support when I was trying to troubleshoot it. ... "
Picture Quality
6quality, hdmi, good, outputs, audio
+100%
" ... IMMEDIATELY the pictures for each, came onscreen. ... "
" ... Good picture quality ... "
" ... The picture quality is solid with two Full HD monitors. ... "
" ... Operation is very straightforward, and I can tell no difference in picture quality with or without the box in use. ... "
" ... This one works great and produces a clear HDMI picture! ... "
" ... This one works great and produces a clear HDMI picture! ... "
Product As Described
6advertised, works
+100%
" ... Works as advertised ... "
" ... Exactly as advertised ... "
" ... Works as advertised. ... "
" ... Works as advertised. ... "
" ... It works as advertised. ... "
" ... (Included some pics to help show what I mean). ... "
Delivery
6first
+17%
-83%
" ... My unit arrived today. ... "
" ... First unit I received was DOA. ... "
" ... The replacement unit arrived on March 27th. ... "
" ... First one was dead on arrival. ... "
" ... Thankfully, it will be delivered tomorrow so I am only limited to the laptop for a short while. ... "
User Manual
4-100%
" ... The manual doesn't cover any of this. ... "
For Running
4working, weeks
+50%
-50%
" ... Not prevalent when running at 30Hz. ... "
Cable Length
4cable, back, short, set, power
+25%
-75%
" ... It wasn't the cable. ... "
" ... The power cable is astonishingly short. ... "
" ... The power cable is astonishingly short. ... "
Defective Delivery
4first
-100%
" ... My unit arrived today. ... "
" ... First unit I received was DOA. ... "
" ... I am going to give 5 stars even though the first device was faulty. ... "
" ... The replacement unit arrived on March 27th. ... "
Network
4quality
+75%
-25%
" ... (7) One of the LEDs indicating "good signal from source 2" does not work. ... "
" ... I can't detect any signal degradation. ... "
" ... It works as expected, great quality, seems like great signal quality. ... "
Comfort
4working, thing, tesmart, static, scrolllock
+50%
-50%
" ... I'm typing this on #2, so with "ScrollLock ScrollLock 2" I'm able to type again -- so, it's working, just, there are no lights. ... "
" ... TeSmart, it is one thing to ignore non-standard mouse buttons but it shouldn't lock up. ... "
Battery Life
4think, remote, documentation, pulled, provided
+75%
-25%
" ... Came with a plastic tab in the remote battery slot which usually means it protects battery life. ... "
" ... TESMart contacted me in response to this review and direct communications with them and tell me they plan to update their documentation concerning the battery or lack thereof. ... "
" ... Energizer 2032 fit it ... "
Lagging
3lag, issue, takes, seconds, 3
+67%
-33%
" ... No set up glitches or operational hiccups. ... "
" ... Usually, rebooting the switch fixes the issue. ... "
Cleaning
3office, kvm switch
+100%
" ... Ergonomics/use: the switch looks great, very clean look. ... "
" ... I picked this device up to replace a relatively ancient rackmount VGA KVM switch that finally bit the dust a year ago. ... "
Storage
3desk
+100%
" ... There is still room for me to add my lap top as well. ... "
" ... I had in a drawer and it worked straight away. ... "
" ... I was in my local big box store looking a comparable KVMs at twice the price. ... "
Size
3looks, good, sleek, cables
+67%
-33%
" ... Looks really good, but might not be ideal in small spaces. ... "
" ... Other than that, it sits on my desk, looks very sleek too. ... "
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Specifications
Connectivity
HDMI: Yes
USB: No
Display
Resolution: 4K
Recommendations
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