SMA
SMA 403HDD 4-Port Triple Monitor KVM Switch 2 DP + 1 HDMI 8K@60Hz
Connect four computers to three monitors with 8K@60Hz HDMI and 4K@144Hz DisplayPort, plus three USB 3.0 ports and audio
- Type2 DisplayPort +1 HDMI
- PC Connectors2 DP + 1 HDMI
- Computer Connections4 Ports
- Monitor Connections3 Ports
- Video Resolution3 Monitors KVM Switch DisplayPort: support resolution up to
- PC SelectionPush Buttons and Wired Remote
- Share one keyboard, mouse and three monitors across four computers
- DisplayPort up to 8K@30Hz or 4K@144Hz for high-resolution workflows
- HDMI up to 8K@60Hz for ultra-clear video on the third display
- Three USB 3.0 ports at 5Gbps plus dedicated audio and microphone outputs
- Switch instantly via front buttons or the included wired remote
Four-Port Triple-Monitor KVM Switch
The SMA 403HDD lets four computers share one keyboard, one mouse and three displays. Each system connects through two DisplayPort and one HDMI cable plus a USB 3.0 link. The switch supports extended, mirrored or spliced layouts across all three screens.
Verify Triple-Display Capability
Every computer must drive three independent outputs — two DisplayPort and one HDMI — before it will work with this unit. If a laptop only offers one DisplayPort and one HDMI, an active adapter or USB-C dock is required. Confirm the graphics hardware can run all three monitors at the desired resolution and refresh rate.
Metal Enclosure With Rear-Facing Ports
The 21 cm wide chassis keeps all video, USB and power connectors at the back for a tidy desk. Front-panel push buttons and the included wired remote both switch the active system, while LEDs show the current selection. A 12 V DC adapter powers the switch and the three downstream USB 3.0 ports, which also carry audio and microphone signals.
Highlights
- Share one keyboard, mouse and three monitors across four computers
- DisplayPort up to 8K@30Hz or 4K@144Hz for high-resolution workflows
- HDMI up to 8K@60Hz for ultra-clear video on the third display
- Three USB 3.0 ports at 5Gbps plus dedicated audio and microphone outputs
- Switch instantly via front buttons or the included wired remote
Specifications
| Model | 403HDD KVM Switch |
|---|---|
| Type | 2 DisplayPort +1 HDMI |
| PC Connectors | 2 DP + 1 HDMI |
| Computer Connections | 4 Ports |
| Monitor Connections | 3 Ports |
| Video Resolution | 3 Monitors KVM Switch DisplayPort: support resolution up to 8K@30Hz/4K@144Hz. 3 Monitor KVM Switch HDMI: support resolution up to 8K@60Hz/4K@60Hz/2K@60Hz and backward compatible with lower resolution. Note: Final resolution is also subject to graphic cards, monitors, cables and adapters. |
| PC Selection | Push Buttons and Wired Remote |
| Monitors Supported | Displayport, Displayport, HDMI |
| LED Indicators | Yes |
| Audio Features | KVM Also supports separate audio and microphone output. |
| Power Features | Come with DC 12V Power Adapter |
| USB Features | with USB support |
| Application | This 3 monitor KVM perfect for hooking up 4 desktops or laptops to share one set of keyboard, mouse and 3 monitors for extended, mirrored display; Perfect for computers with 3 Displayport and 1 HDMI monitor for the display outputs. It requires every Laptop/PC support 3 screen or above display functions and must support extended display. |
| Features | 1. 8K Triple Monitor KVM Switch 4-Port allows 4 computers/laptops to share one set of keyboard, mouse, and 3 monitors 2. This 3-monitor KVM switch with 4 ports does not mean that it can only be connected to 4 computers. You may only have 2 computers now, but you may need to use 3 or 4 computers in the future, then you can choose this switch. Please make sure each of your PCs can support triple display before purchasing. 3. Support HDMI 2.1 and DP 1.4 standards and downward compatibility. 3 monitors output support up to 8K@60Hz for extended,mirrored or spliced display(Depends on your |
| Dimensions | 21cm x 10cm x 6cm |
| Weight | 700g |
| Package Contents | 1x 4 Port USB 3.0 Triple Monitor KVM Switch, 4x USB 3.0 Cables, 1x Power Adapter, 1x Wired Button Switch, 1x User's manual. |
Questions about this item
Which cables are included so I can connect four computers to three monitors?
The box contains four USB 3.0 cables, a wired remote button and a 12 V power adapter; you must supply two DisplayPort and one HDMI cable per computer yourself.
How do I know if my graphics cards can drive the advertised 8K@60Hz or 4K@144Hz modes?
HDMI output reaches 8K@60Hz or 4K@60Hz; each DisplayPort output reaches 8K@30Hz or 4K@144Hz, provided your GPU, monitors and cables also support those rates.
Will the three USB 3.0 ports run at full 5 Gbps when I switch between machines?
Yes, the integrated hub delivers USB 3.0 speeds up to 5 Gbps on all three ports and stays active whichever of the four computers is selected.
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