The KVM also features 3.5 mm audio and a built-in 2-port USB 3.0 hub. 4K at 30Hz UHD dual display With support for ultra-high-definition 4K 30Hz resolutions, this 4-port KVM switch can drive dual HDMI displays with crystal clarity, making it ideal for graphical applications that require UHD capability. Convenient and cost-effective USB 3.0 peripheral sharing This 4-port KVM switch offers two USB 3.0 ports, as well as four HID keyboard and mouse ports, so you can share peripheral devices between each computer and avoid the cost of separate equipment. The USB 3.0 hub automatically switches your connected devices to the selected computer, saving you the hassle of disconnecting and reconnecting peripherals. Complete multimedia capability Along with dual UHD video capability, this KVM switch features auxiliary 3.5 mm dual-channel bi-directional audio ports. This independent analog audio lets you share your analog audio devices such as speakers or a microphone between each of your connected computers, giving you complete multimedia control of your systems.
The KVM also features 3.5 mm audio and a built-in 2-port USB 3.0 hub. 4K at 30Hz UHD dual display With support for ultra-high-definition 4K 30Hz resolutions, this 4-port KVM switch can drive dual HDMI displays with crystal clarity, making it ideal for graphical applications that require UHD capability. Convenient and cost-effective USB 3.0 peripheral sharing This 4-port KVM switch offers two USB 3.0 ports, as well as four HID keyboard and mouse ports, so you can share peripheral devices between each computer and avoid the cost of separate equipment. The USB 3.0 hub automatically switches your connected devices to the selected computer, saving you the hassle of disconnecting and reconnecting peripherals. Complete multimedia capability Along with dual UHD video capability, this KVM switch features auxiliary 3.5 mm dual-channel bi-directional audio ports. This independent analog audio lets you share your analog audio devices such as speakers or a microphone between each of your connected computers, giving you complete multimedia control of your systems.
The KVM also features 3.5 mm audio and a built-in 2-port USB 3.0 hub. 4K at 30Hz UHD dual display With support for ultra-high-definition 4K 30Hz resolutions, this 4-port KVM switch can drive dual HDMI displays with crystal clarity, making it ideal for graphical applications that require UHD capability. Convenient and cost-effective USB 3.0 peripheral sharing This 4-port KVM switch offers two USB 3.0 ports, as well as four HID keyboard and mouse ports, so you can share peripheral devices between each computer and avoid the cost of separate equipment. The USB 3.0 hub automatically switches your connected devices to the selected computer, saving you the hassle of disconnecting and reconnecting peripherals. Complete multimedia capability Along with dual UHD video capability, this KVM switch features auxiliary 3.5 mm dual-channel bi-directional audio ports. This independent analog audio lets you share your analog audio devices such as speakers or a microphone between each of your connected computers, giving you complete multimedia control of your systems.
The KVM also features 3.5 mm audio and a built-in 2-port USB 3.0 hub. 4K at 30Hz UHD dual display With support for ultra-high-definition 4K 30Hz resolutions, this 4-port KVM switch can drive dual HDMI displays with crystal clarity, making it ideal for graphical applications that require UHD capability. Convenient and cost-effective USB 3.0 peripheral sharing This 4-port KVM switch offers two USB 3.0 ports, as well as four HID keyboard and mouse ports, so you can share peripheral devices between each computer and avoid the cost of separate equipment. The USB 3.0 hub automatically switches your connected devices to the selected computer, saving you the hassle of disconnecting and reconnecting peripherals. Complete multimedia capability Along with dual UHD video capability, this KVM switch features auxiliary 3.5 mm dual-channel bi-directional audio ports. This independent analog audio lets you share your analog audio devices such as speakers or a microphone between each of your connected computers, giving you complete multimedia control of your systems.
Last updated at 08/02/2026 06:45:55
StarTech.com SV431DHD4KU 4 Port 4K 30Hz HDMI KVM Switch | Switch, Switch Box, Display, Separate 3.5mm auxiliary audio, High-definition video, OS
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HDMI KVM 4K30 DUAL DISPLAY HDMI KVM 4K30 DUAL DISPLAY
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
[SV431DHD4KU] StarTech STARTECH.COM 4 PORT USB HDMI KVM SWITCH WITH AUDIO - 4K 30HZ DUAL MONITOR 2 YR
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Startech Kvm Switch Dual Display 4k 30hz Black
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StarTech 4 Port HDMI 4K 30Hz Dual Display KVM Switch
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originally posted on homeessentialsdirect.com
A few major issues with this. 1) I'm having to use one of the USB3.0 ports on the back for my DasKeyboard X50 (HID ports will not power it). No biggie, it just means I have to use the front USB3.0 port for my webcam which I was trying to avoid when purchasing this (I wanted all the cables in the back, I tried an external powered USB 3.0 hub without any success) 2) Mouse Logitech M-U0028 wired mouse plugged into HID port will disconnect and reconnect intermittently and sometimes will never reconnect without me unplugging and plugging it back in. I've had to bypass it completely to have reliable mouse signal. 3) HDMI is very, very slow to detect on one monitor (like 5 minutes slow) while the other monitor (same make/model) works perfectly fine. I've tried swapping ... MoreA few major issues with this. 1) I'm having to use one of the USB3.0 ports on the back for my DasKeyboard X50 (HID ports will not power it). No biggie, it just means I have to use the front USB3.0 port for my webcam which I was trying to avoid when purchasing this (I wanted all the cables in the back, I tried an external powered USB 3.0 hub without any success) 2) Mouse Logitech M-U0028 wired mouse plugged into HID port will disconnect and reconnect intermittently and sometimes will never reconnect without me unplugging and plugging it back in. I've had to bypass it completely to have reliable mouse signal. 3) HDMI is very, very slow to detect on one monitor (like 5 minutes slow) while the other monitor (same make/model) works perfectly fine. I've tried swapping ports, cables, etc.
originally posted on homeessentialsdirect.com
Because I am working from home, now have to juggle multiple laptops and am running out of home office real estate, I bought this KVM, specifically because my laptops don't have VGA ports. All I needed to do was plug in a USB 2 Type B cable and HDMI cable from each computer into the switch and an HDMI cable from the switch to the monitor. Followed the steps in the manual, which I had to download as they don't come in the box, and it worked perfectly. Screen image is sharp and I do not detect any lag in mouse or keyboard response.
originally posted on newegg.com
Highly recommend for technology geeks - probably won't be obsolete for a long time
| General | |
| Device Type | KVM / audio / USB switch - 4 ports |
| Enclosure Type | Rack-mountable |
| Subtype | KVM |
| Ports | 4 x KVM / audio / USB |
StarTech.com SV431DHD4KU 4 Port 4K 30Hz HDMI KVM Switch | Switch, Switch Box, Display, Separate 3.5mm auxiliary audio, High-definition video, OS
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
HDMI KVM 4K30 DUAL DISPLAY HDMI KVM 4K30 DUAL DISPLAY
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
4 Port HDMI KVM Switch - 4K 30Hz - Dual Display - TAA
A few major issues with this. 1) I'm having to use one of the USB3.0 ports on the back for my DasKeyboard X50 (HID ports will not power it). No biggie, it just means I have to use the front USB3.0 port for my webcam which I was trying to avoid when purchasing this (I wanted all the cables in the back, I tried an external powered USB 3.0 hub without any success) 2) Mouse Logitech M-U0028 wired mouse plugged into HID port will disconnect and reconnect intermittently and sometimes will never reconnect without me unplugging and plugging it back in. I've had to bypass it completely to have reliable mouse signal. 3) HDMI is very, very slow to detect on one monitor (like 5 minutes slow) while the other monitor (same make/model) works perfectly fine. I've tried swapping ... MoreA few major issues with this. 1) I'm having to use one of the USB3.0 ports on the back for my DasKeyboard X50 (HID ports will not power it). No biggie, it just means I have to use the front USB3.0 port for my webcam which I was trying to avoid when purchasing this (I wanted all the cables in the back, I tried an external powered USB 3.0 hub without any success) 2) Mouse Logitech M-U0028 wired mouse plugged into HID port will disconnect and reconnect intermittently and sometimes will never reconnect without me unplugging and plugging it back in. I've had to bypass it completely to have reliable mouse signal. 3) HDMI is very, very slow to detect on one monitor (like 5 minutes slow) while the other monitor (same make/model) works perfectly fine. I've tried swapping ports, cables, etc.
Because I am working from home, now have to juggle multiple laptops and am running out of home office real estate, I bought this KVM, specifically because my laptops don't have VGA ports. All I needed to do was plug in a USB 2 Type B cable and HDMI cable from each computer into the switch and an HDMI cable from the switch to the monitor. Followed the steps in the manual, which I had to download as they don't come in the box, and it worked perfectly. Screen image is sharp and I do not detect any lag in mouse or keyboard response.
Highly recommend for technology geeks - probably won't be obsolete for a long time
I plugged this in and it just works. My setup is pretty straightforward, a desktop PC and a laptop docking station sharing a wired keyboard and wired mouse, but it all worked out of the box. I would give it 5 stars, but it is pretty expensive for a basic KVM.
I've been using this for months now to share a dual-monitor setup, keyboard, mouse, and USB 3 hub (including additional peripherals and a microphone) between 4 PCs, including both my personal and work computers. I have had literally zero issues. It's expensive, but every cheaper KVM switch I've used has had intolerable quirks or has stopped working altogether after a month or two of use. If you have a serious multi-machine setup and need a no-frills, no-joke KVM switch, this is the guy for you.
I've tried two of these in last two weeks. Both exhibited same behavior right out of the box: USB mouse port is dead, audio is dead, one of the extra USB ports is dead. Can use the mouse in the extra USB port that isn't dead, but TWO out of the four USB ports just don't work, period. HDMI worked fine as did the mic lines, but audio out was completely dead. I'm sharing a Mac and Win 10 PC. The audio didn't work for either. The point of failure must be in the StarTech. If you just need monitor sharing, it might be ok for you. But totally unacceptable for me. I've since gone with the Syba 4 port HDMI KVM--all four USB ports work and the audio works, so I know my cables are fine. The StarTech hardware just isn't solid.
Product worked ok for several months then started missing keyboard strokes and mouse activity. Problem continues to get worse. Lots of troubleshooting to eliminate any other possibility. Same issue with wired and USB keyboards (which work fine when connected to other KVMs and directly to laptops). Seems to be on the input side, since issue occurs on both outputs. The problem is also intermittent: may work fine for several days, then for another few days it will miss three out of four keyboard strokes.
4K monitors are a requirement for this KVM. The KVM will not display 1080P via HDMI (though it will with a DVI adapter at the monitor). That may seem obvious after the fact, but should be in the requirements. I found this out after trying multiple cables, different adapters, each output of the video card, basically wasting a lot of time. Finally hooked up KVM output port directly to a UHD TV, which worked. If you're planning to get this KVM purchased and set up, then upgrade monitors, do the reverse. Monitors first ($800 I was hoping to spend next month, not immediately). Update: Reducing the rating to 2 stars. I am now experiencing a random failure to display a monitor issue. Workarounds are things like reset the KVM, switch back and forth to another powered on ... More4K monitors are a requirement for this KVM. The KVM will not display 1080P via HDMI (though it will with a DVI adapter at the monitor). That may seem obvious after the fact, but should be in the requirements. I found this out after trying multiple cables, different adapters, each output of the video card, basically wasting a lot of time. Finally hooked up KVM output port directly to a UHD TV, which worked. If you're planning to get this KVM purchased and set up, then upgrade monitors, do the reverse. Monitors first ($800 I was hoping to spend next month, not immediately). Update: Reducing the rating to 2 stars. I am now experiencing a random failure to display a monitor issue. Workarounds are things like reset the KVM, switch back and forth to another powered on computer. My view now is this product was brought to market without sufficient testing. In the absence of firmware update (hopefully) that addresses my issue and others I see in reviews I do not recommend purchase of this product. The product has potential but does not work as advertised at this time.
| General | |
| Device Type | KVM / audio / USB switch - 4 ports |
| Enclosure Type | Rack-mountable |
| Subtype | KVM |
| Ports | 4 x KVM / audio / USB |
