8 Ports 4K HDMI KVM Switch with USB KM Synchronization

The 8 Ports 4K HDMI KVM Switch with USB KM synchronization (KNVM-08A2) lets you control up to eight HDMI PCs with a single keyboard, mouse and 4K display. It supports resolutions up to 3840×2160@30Hz, EDID auto learning/copy and HDCP 1.4 for smooth video playback. Unique USB KM sync and mouse-switching make it ideal for broadcast, testing labs and multi-PC installations where you need to send the same keyboard/mouse actions to all identical systems at once.

Key Features

8-port 4K HDMI KVM control – manage up to 8 HDMI computers from one console (keyboard, mouse and monitor)
4K UHD video – supports resolutions up to 3840×2160 @ 30Hz (4:4:4) for crisp image quality
USB KM synchronization – sends mouse movement and keyboard commands simultaneously to all 8 identical PCs, perfect for batch OS install, configuration and recovery
Mouse-switching mode – switch between PCs using programmable mouse buttons, plus front panel buttons and hotkey control for flexible operation
EDID auto learning & copy – optimizes and maintains correct resolution after switching, preventing display issues
Built-in HDCP engine (1.4) – ensures uninterrupted protected-content playback during port changes
Selectable auto-scan interval – cycle through ports automatically at preset time intervals (3, 8, 15, 30 seconds) for monitoring multiple systems
Plug-and-play hardware design – pure hardware solution, no drivers or software required; supports Windows and macOS hosts
Status LEDs per port – separate indicators for computer ready and selected port for quick visual status checking
Robust metal enclosure – 1U-style housing suitable for professional and broadcast environments

Technical Specification

Computer / Server Ports (Inputs)

HDMI: 8x (single display for 8 PCs)
USB Type B: 8x (USB HID for keyboard/mouse from each PC)

Console Ports (Outputs)

HDMI: 1x (single display output)
USB HID Type A: 4x (for keyboard, mouse and other HID peripherals)

Video

Max Resolution: 3840 × 2160 @ 30Hz (4:4:4)
HDMI Standard: compliant with HDMI 1.4
HDCP Compliance: HDCP 1.4

Control Methods

Front panel push buttons (8x port selection)
Keyboard hotkeys
Hot-mouse key (switch via 5-button mouse)

EDID & Video Handling

Auto EDID learning
EDID copy function
Built-in HDCP engine for seamless switching and stable video output

USB & KM Synchronization

USB HID sharing across 4 console ports
USB KM synchronization: simultaneously sends mouse and keyboard actions to all 8 identical connected PCs

Auto-Scan Function

Automatic scan intervals: 3, 8, 15, 30 seconds

LED Indicators

Status LED: 1x
Computer Ready: 8x green LEDs
Computer Selected: 8x red LEDs

Power & Environment

Power Supply: DC 9–12V
Operating Temperature: 0–40°C, humidity < 80%
Storage Temperature: –20–60°C

Mechanical

Enclosure: Metal
Dimensions (H × W × D): 44 × 436 × 180 mm
Weight: ≈ 2278 g

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