NTI UNIMUX-HD4K18GB-8
Expert rating8.6 / 10
- Port Count:
- 8
- Video Standard:
- HDMI 2.0
- Max Resolution:
- 4096x2160 @ 60Hz
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Manufacturer: NTI (Network Technologies Inc) Last updated: September 12, 2026
NTI UNIMUX-HD4K18GB-8 (8-Port Rackmount 4K HDMI 18Gbps KVM Switch / $1412.99) Review
The NTI UNIMUX-HD4K18GB-8 is a 1U rackmount 8-port KVM switch supporting full-bandwidth 18Gbps HDMI 2.0 at 4K@60Hz 4:4:4, with 2 transparent USB 2.0 ports, HDMI audio switching, and RS-232 control, priced at $1412.99.
Doubling the port count of the UNIMUX-HD4K18GB-4 without giving up any bandwidth, the 8-port model is the sweet spot for a mid-size server rack: enough sources for a small cluster or lab bench, still in a single 1U enclosure, still switching at full 4K@60Hz 4:4:4. The jump in price over the 4-port model is modest relative to the doubled capacity, which makes it the more cost-efficient buy per port for anyone likely to fill more than four slots. Versus the NTI UNIMUX-HD4K18GB-4 — fewer ports for less money, right-sized for a genuinely small deployment. Versus the Austin Hughes CV-801K already in this catalog — a comparable 8-port 4K HDMI rack switch from a different manufacturer, worth comparing on price and rack-ear style.
Eight Ports, No Bandwidth Compromise
Doubling the port count of the UNIMUX-HD4K18GB-4 without giving up any bandwidth, the 8-port model is the sweet spot for a mid-size server rack: enough sources for a small cluster or lab bench, still in a single 1U enclosure, still switching at full 4K@60Hz 4:4:4.
Efficient Cost Per Port
The jump in price over the 4-port model is modest relative to the doubled capacity, which makes it the more cost-efficient buy per port for anyone likely to fill more than four slots.
Comparison to Alternatives
Versus the NTI UNIMUX-HD4K18GB-4 — fewer ports for less money, right-sized for a genuinely small deployment. Versus the Austin Hughes CV-801K already in this catalog — a comparable 8-port 4K HDMI rack switch from a different manufacturer, worth comparing on price and rack-ear style.
Specifications
Design
| Port Count | 8 |
|---|---|
| Switching Method | Front-panel buttons, keyboard commands, OSD, RS232 |
Topology
| Computers Supported | 8 computers |
|---|---|
| Displays Per Computer | 1 displays |
| KVM Segment | Rack |
Video & Features
| Video Standard | HDMI |
|---|---|
| Max Resolution | 4096x2160 @ 60Hz |
| USB Hub Ports | 2 |
| Audio Support | Yes |
Video interface
| Video Connector | HDMI |
|---|---|
| Video Interface Version | HDMI 2.0 |
Per display capability
| Max Refresh At Max Resolution | 60 Hz |
|---|---|
| Max Refresh At 4K | 60 Hz |
Display continuity
| HDCP Version | 2.2 |
|---|---|
| HDR Passthrough | Yes |
USB peripheral switching
| USB Switching Speed | USB 2.0 |
|---|---|
| Shared USB Ports | 2 ports |
| Dedicated HID Ports | 2 ports |
Switching control
| Button Switching | Yes |
|---|---|
| Hotkey Switching | Yes |
| Serial Or Network Control | RS232 |
Physical and power
| Rack Mountable | Yes |
|---|---|
| External Power Required | No |
In the box and price
| Price | 1412.99 USD |
|---|
| Brand | NTI |
|---|---|
| Model | UNIMUX-HD4K18GB-8 |
| Rack Height | 1U |
| USB-C Power Delivery | No |
| Source URL | https://www.networktechinc.com/pdf/4k-hdmi2-usb-kvm-switch.pdf |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8.6 / 10
The best cost-per-port entry in NTI's 4K rack switch family for a mid-size server room.
Best for
- Mid-size server racks needing 8 full-bandwidth 4K@60Hz HDMI sources
- IT teams standardizing on the UNIMUX-HD4K18GB control scheme for future growth
- Labs or clusters that outgrew a 4-port switch
Not for
- Very small 2-4 machine deployments (see the -4 model)
- Racks needing 16+ ports from the start
- Desktop rather than rackmount use
FAQs
What are the key specifications of the NTI UNIMUX-HD4K18GB-8 (8-Port Rackmount 4K HDMI 18Gbps KVM Switch / $1412.99)?
The NTI UNIMUX-HD4K18GB-8 (8-Port Rackmount 4K HDMI 18Gbps KVM Switch / $1412.99) is a KVM switch from NTI (Network Technologies Inc). Key specs: Port Count 8, Switching Method Front-panel pushbutton + RS-232/network control, Video Standard HDMI 2.0 (18Gbps), Max Resolution 4K@60Hz 4:4:4, USB Hub Ports 2.
Who is the NTI UNIMUX-HD4K18GB-8 (8-Port Rackmount 4K HDMI 18Gbps KVM Switch / $1412.99) best suited to?
It suits mid-size server racks needing 8 full-bandwidth 4k@60hz hdmi sources, it teams standardizing on the unimux-hd4k18gb control scheme for future growth, labs or clusters that outgrew a 4-port switch.
What are the drawbacks of the NTI UNIMUX-HD4K18GB-8 (8-Port Rackmount 4K HDMI 18Gbps KVM Switch / $1412.99)?
It is a poor fit for very small 2-4 machine deployments (see the -4 model), racks needing 16+ ports from the start, desktop rather than rackmount use.
Compare and read more
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