Last Updated: November 25, 2018 (Refresh Now)
Avocent 4 Port Dual Head DisplayPort 4K Ultra HD KVM Switch SV340D
Last Updated: November 25, 2018 (Refresh Now)
5.6
SCORE
/10
Total Reviews
196
Old Reviews
6
Unverified
110
Spam Test
!
4K
RESOLUTION
Yes
USB
3
NUMBER OF USB PORTS
Review Analysis - 80 recent, verified reviews
Detailed Mode
Ports
22cables, displayport, usb, dvi, kvm switch
+41%
-59%
" ... The description of this KVM indicated that it supported displayport emulation, but that doesn't seem to be the case. ... When switching between devices, the host operating system behaves as if the monitor were unplugged, then plugged back in and re-arranges windows between the laptop's display and the monitor attached to the KVM. ... "
" ... The description of this KVM indicated that it supported displayport emulation, but that doesn't seem to be the case. ... When switching between devices, the host operating system behaves as if the monitor were unplugged, then plugged back in and re-arranges windows between the laptop's display and the monitor attached to the KVM. ... "
" ... But it was only HDMI and my Mac Mini can't do 4K video over an HDMI connection. ... So I decided to swap it out for a switch that supports DisplayPort and got the 4-port, DisplayPort version of this device. ... The same issues appear with both my Windows 10 and my macOS computers, with a combination of different cables. ... Also note: if you're buying the bundle with the KVM cable, you get only one KVM cable. ... "
" ... But it was only HDMI and my Mac Mini can't do 4K video over an HDMI connection. ... So I decided to swap it out for a switch that supports DisplayPort and got the 4-port, DisplayPort version of this device. ... The same issues appear with both my Windows 10 and my macOS computers, with a combination of different cables. ... Also note: if you're buying the bundle with the KVM cable, you get only one KVM cable. ... "
" ... USB usually comes back, about about 1/3 of the time the monitor doesn't come back and I need to unplug and restart the KVM to get the monitor working again. ... "
" ... USB usually comes back, about about 1/3 of the time the monitor doesn't come back and I need to unplug and restart the KVM to get the monitor working again. ... "
" ... I've ordered a different brand KVM finally. ... "
" ... I've ordered a different brand KVM finally. ... "
Keyboard
20mouse, keyboard and mouse, kvm, switch, sequences
+20%
-80%
" ... To write this review, I had to unplug my keyboard out of the KVM and directly into my PC, thereby negating the entire purpose of the KVM. ... "
" ... To write this review, I had to unplug my keyboard out of the KVM and directly into my PC, thereby negating the entire purpose of the KVM. ... "
" ... Works most of the time, but several times a week it will freeze and shut down (screen goes blank, mouse/keyboard stop working). ... "
" ... Works most of the time, but several times a week it will freeze and shut down (screen goes blank, mouse/keyboard stop working). ... "
" ... However, it doesn't ship with a real manual so I wasn't sure if it did keyboard switching so I reorganized to get the unit near my keyboard. ... While it might not matter, my old Iogear was a little unhappy with one Asus motherboard and refused to work with it's keyboard and mouse - no such issue with this unit. ... "
" ... However, it doesn't ship with a real manual so I wasn't sure if it did keyboard switching so I reorganized to get the unit near my keyboard. ... While it might not matter, my old Iogear was a little unhappy with one Asus motherboard and refused to work with it's keyboard and mouse - no such issue with this unit. ... "
" ... While attempting to attach a Mac an PC to the same monitor/mouse/keyboard, nothing works properly. ... Mac does not respond to mouse clicks. ... PC will not respond to Mac keyboard. ... Now the keyboard and mouse input has stopped working. ... "
" ... While attempting to attach a Mac an PC to the same monitor/mouse/keyboard, nothing works properly. ... Mac does not respond to mouse clicks. ... PC will not respond to Mac keyboard. ... Now the keyboard and mouse input has stopped working. ... "
Product Reliability
19unblank, keyboard and mouse, failtastic, blanks, blanking
+11%
-89%
" ... Also, it can occasionally fail to render a row of pixels, and once every 10 seconds or so just goes completely black for about one second. ... The device is basically unusable as is. ... "
" ... Also, it can occasionally fail to render a row of pixels, and once every 10 seconds or so just goes completely black for about one second. ... The device is basically unusable as is. ... "
" ... Product worked as advertised for 14 months then died. ... But, if a product cannot last for at least two years it is not a recommend. ... "
" ... Product worked as advertised for 14 months then died. ... But, if a product cannot last for at least two years it is not a recommend. ... "
" ... Now the keyboard and mouse input has stopped working. ... "
" ... Now the keyboard and mouse input has stopped working. ... "
" ... Broke after 2 days!!! ... "
" ... I ran into the following issues: ... "
Device Compatibility
15macbook pro, kvm, switch, monitor, windows machines
+33%
-67%
" ... When switching between devices, the host operating system behaves as if the monitor were unplugged, then plugged back in and re-arranges windows between the laptop's display and the monitor attached to the KVM. ... I gave it two stars instead of one, since the other KVM functionality works as advertised, but having to re-arrange all my windows when switching between devices is a show-stopper for me, and I'll be returning this KVM. ... "
" ... When switching between devices, the host operating system behaves as if the monitor were unplugged, then plugged back in and re-arranges windows between the laptop's display and the monitor attached to the KVM. ... I gave it two stars instead of one, since the other KVM functionality works as advertised, but having to re-arrange all my windows when switching between devices is a show-stopper for me, and I'll be returning this KVM. ... "
" ... PC will not respond to Mac keyboard. ... "
" ... PC will not respond to Mac keyboard. ... "
" ... Sadly I could not get it to work on my Mac. ... "
" ... Sadly I could not get it to work on my Mac. ... "
" ... I had a few issues with this device. ... "
" ... I had a few issues with this device. ... "
Resolution
13uhd, want 4k, kvm, 60hz refresh, switching
+31%
-69%
" ... But it was only HDMI and my Mac Mini can't do 4K video over an HDMI connection. ... "
" ... But it was only HDMI and my Mac Mini can't do 4K video over an HDMI connection. ... "
" ... This unit will NOT support 4K UHD resolution at 60Hz which pretty much makes it useless for a computer KVM switch if you want 4K. ... "
" ... This unit will NOT support 4K UHD resolution at 60Hz which pretty much makes it useless for a computer KVM switch if you want 4K. ... "
" ... Not HDMI 2.0 compliant (manual says "HDMI 1.4) My monitor need 2.0 for 60Hz refresh rate at high resolutions. ... "
" ... Not HDMI 2.0 compliant (manual says "HDMI 1.4) My monitor need 2.0 for 60Hz refresh rate at high resolutions. ... "
" ... I have had a constant problem with 4K monitors periodically resetting. ... "
" ... * Screen would not switch to my linux box which has Geforce 950 at UHD res. ... "
Setup
12unpack, transitions, support, straightforward, parent
+75%
-25%
" ... Very easy setup and worked right away with both computers ... "
" ... It was easy to use and unpack,. ... "
" ... It was easy to use and unpack,. ... "
" ... Use google to find the user guide and installation manuals (they are not hard to find) ... "
" ... Use google to find the user guide and installation manuals (they are not hard to find) ... "
Marketplace
11updates, topre, realforce, point, manufacturer
+36%
-64%
" ... Avoid this manufacturer. ... "
" ... Avoid this manufacturer. ... "
" ... The unit is only 90 days old but there is no one who can help or get a replacement from. ... "
" ... So, as I said, that was the deal breaker. ... "
" ... So, as I said, that was the deal breaker. ... "
Ease of Use
10unpack, support, manuals, locate, guide
+80%
-20%
" ... It was easy to use and unpack,. ... "
" ... It was easy to use and unpack,. ... "
" ... Use google to find the user guide and installation manuals (they are not hard to find) ... "
" ... Use google to find the user guide and installation manuals (they are not hard to find) ... "
Mouse
10keyboard, keyboard and mouse, switch, mouse clicks, trackball
+20%
-80%
" ... While attempting to attach a Mac an PC to the same monitor/mouse/keyboard, nothing works properly. ... Mac does not respond to mouse clicks. ... Now the keyboard and mouse input has stopped working. ... "
" ... While attempting to attach a Mac an PC to the same monitor/mouse/keyboard, nothing works properly. ... Mac does not respond to mouse clicks. ... Now the keyboard and mouse input has stopped working. ... "
" ... It does not detect the mouse clicks. ... Works fine for mouse movements and everything else, works fine under Ubuntu (including mouse clicks), but no mouse clicks on Mac. ... I tried with different cables and different mouses (I am using a regular mouse) but no luck. ... "
" ... It does not detect the mouse clicks. ... Works fine for mouse movements and everything else, works fine under Ubuntu (including mouse clicks), but no mouse clicks on Mac. ... I tried with different cables and different mouses (I am using a regular mouse) but no luck. ... "
" ... First, using a mouse through the switch box is SLOW. ... The makers seem to know this is an issue because there are keyboard sequences to modify the mouse pointer speed. ... "
" ... First, using a mouse through the switch box is SLOW. ... The makers seem to know this is an issue because there are keyboard sequences to modify the mouse pointer speed. ... "
" ... But - this switch cannot hot-swap the monitor feed, which makes the keyboard and mouse hot-swap entirely pointless because it takes at most the same time for them to cold-swap as the monitor does! ... "
" ... But - this switch cannot hot-swap the monitor feed, which makes the keyboard and mouse hot-swap entirely pointless because it takes at most the same time for them to cold-swap as the monitor does! ... "
Cables
10kvm, usb, b, accell, usb devices
+60%
-40%
" ... The good is it just worked fine out of the box with good quality HDMI cables. ... While I bought good quality HDMI cables, I had to rummage for the USB A to B cables, so plan for these as well if you want an easy set-up. ... "
" ... The good is it just worked fine out of the box with good quality HDMI cables. ... While I bought good quality HDMI cables, I had to rummage for the USB A to B cables, so plan for these as well if you want an easy set-up. ... "
" ... Eventually I found the Avocent cables which bundle video, USB an audio together. ... (4) USB A male to B male cables for USB devices - these are optional ... (4) 3.5mm male to male audio cables ... "
" ... Eventually I found the Avocent cables which bundle video, USB an audio together. ... (4) USB A male to B male cables for USB devices - these are optional ... (4) 3.5mm male to male audio cables ... "
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Specifications
Connectivity
USB: Yes
Number of USB ports: 3
Display
Resolution: 4K
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