10000 Woodward Avenue
Woodridge, Illinois 60517
+1 773-869-1776
+1 (773) 869-1329
United States
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Controls 4 HDMI-enabled desktop, laptop or notebook computers using one HDMI monitor and one USB keyboard/mouse.
  • Supports HD resolutions up to 1920 x 1200 (@ 60 Hz) for crystal-clear 1080p video
  • Manual push buttons and hotkey commands allow easy toggling between computers
  • Built-in 2-port USB 2.0 hub lets you share USB peripherals among connected computers
  • 3.5 mm stereo jacks provide 2.1-channel surround sound audio input to each computer
  • Widely compatible KVM switch works with Windows, Mac and Linux operating systems
  • 3-year limited warranty


Connects 4 HDMI-Enabled Devices to a Single HDMI Monitor, Keyboard and Mouse
This compact four-port KVM switch lets you access, control, boot and reboot four computers or other devices with HDMI ports at the same time. In addition to desktop and notebook computers, the switch also connects up to four media centers, gaming systems, Blu-ray and DVD players, cable and satellite boxes and DVRs, and other HDMI-enabled devices. All four computers share one HDMI monitor, USB keyboard and USB mouse, which saves space on your desk or workspace.
Switching Between Computers Is Fast and Easy
Use the front-panel push buttons or hotkey commands for quick and easy toggling between computers. Or you can use Auto Scan mode to scan all four connected computers in five-second intervals automatically. Orange LEDs indicate which computer is currently selected.
Cables Are Included for Fast and Simple Setup
Connect your HDMI monitor, keyboard, mouse, and speakers to the switch’s console ports. Then, use the included HDMI, USB-B and 3.5 mm audio cables to connect your computers to the KVM switch. The plug-and-play KVM switch requires no software or drivers, so you can connect and use it immediately. The B004-HUA4-K works with all major operating systems, including Windows, Mac and Linux.
USB Hub Lets You Share Peripherals between Computers
The built-in two-port USB 2.0 hub allows you to share USB peripherals, such as printers, hard drives, scanners, webcams and flash drives, between the four connected computers. Because the USB ports operate independently, you can print documents from one computer while working on a different computer. The hub is backward compatible with USB 1.1 devices. Green LEDs indicate which computer is using the connected USB device.
Transmits Crystal-Clear 1080p Video and Digital Audio
The B004-HUA4-K KVM switch supports high-definition video resolutions up to 1920 x 1200 (including 1080p) at 60 Hz, 2.1-channel surround sound audio, and USB 2.0 data transfer rates up to 480 Mbps. With independent audio switching, you can listen to music or other audio from one computer while working on a different computer. The front-panel audio jacks have priority over the rear-panel jacks.

System Requirements

Console Requirements
  • Monitor with HDMI connector (should support the highest resolution of any connected computer)
  • USB keyboard/mouse
  • Microphone/speakers with 3.5 mm mini stereo connectors (optional)
Computer Requirements
  • HDMI connector
  • USB-A connector
  • 3.5 mm mini stereo jacks (optional)
  • Windows, Mac, Novell, UNIX or Linux operating system

Package Includes

  • B004-HUA4-K 4-Port HDMI/USB KVM Switch
  • (4) HDMI/USB KVM cable kits, 6-ft. (1.83 m)
  • Firmware upgrade cable
  • External power supply w/NEMA 1-15P plug & 5-ft. (1.52 m) cord (Input: 100-240V, 50/60 Hz, 0.5A; Output: 5.3V 2.4A)
  • Owner's manual
RoHS compliant


UPC Code037332226129
Max CPU4
TechnologyHDMI; USB 2.0 (High Speed)
Number of Monitors Supported1
Max Supported Video Resolution1920 x 1200 @60Hz
Max Number of Ports (Entire Chain)4
Extended ModeNo
Mirror ModeNo
Audio Specification2.1-channel surround sound
AC Power Adapter Plug(s)NEMA 1-15P North America
AC Power Adapter Input Specs (V / Hz / A)100-240V / 50/60Hz / 0.5A
AC Power Adapter Output Specs (V / A)5.3V / 2.4A
AC Power Adapter Cord Length (ft.)5
AC Power Adapter Cord Length (m)1.5
Power Source TypeAC Adapter
Number of Ports4
Computer/Server PortsHDMI, USB, 3.5mm Audio Jack (Audio), 3.5mm Audio Jack (Mic)
Daisy-Chain PortNo
Firmware Upgrade PortYes
PC/Server ConnectionsHDMI; USB
Side A - Connector 1(4) HDMI (FEMALE)
Side A - Connector 2(4) USB B (FEMALE)
Side A - Connector 3(8) 3.5MM (FEMALE)
Side B - Connector 1(1) HDMI (FEMALE)
Side B - Connector 2(4) USB A (FEMALE)
Side B - Connector 3(4) 3.5MM (FEMALE)
Computer Keyboard and Mouse InterfaceUSB
Computer Monitor InterfaceHDMI
Console Keyboard and Mouse InterfaceUSB
Console Monitor InterfaceHDMI
Material of ConstructionMetal
Unit Dimensions (hwd / in.)1.800 x 10.300 x 2.800
Unit Packaging TypeBox
Unit Weight (lbs.)5.3
Operating Temperature Range32° to 122°F (0° to 50°C)
Storage Temperature Range-4° to 140°F (-20° to 60°C)
Relative Humidity0% to 80% RH, Non-Condensing
Operating Temperature32° to 122°F (0° to 50°C)
Port ControlPush Buttons, Hotkeys, OSD Mouse Switching
IP Remote Access  No
USB Hub PortsYes
Number of USB Hub Ports2
USB SpecificationUSB 2.0 (up to 480 Mbps)
NIAP-Certified Secure  No
Number of Users1
Autoscan (Y,N)  Y
Port SelectionHotkey; Pushbutton
HDCP Specification1.4
Autoscan Duration  5 seconds (Default)
External Power Supply CertificationsFCC; RoHS; TUV; UL; cUL
Product ComplianceRoHS; REACH; FCC (USA)
Product Warranty Period (Worldwide)3-year limited warranty

Questions & Answers


Audio Video Cables

  Model Number Description
3.5mm Mini Stereo Audio Cable for Microphones, Speakers and Headphones (M/M), 3 ft. (0.91 m) P312-003 P312-003 3.5mm Mini Stereo Audio Cable for Microphones, Speakers and Headphones (M/M), 3 ft. (0.91 m)
High-Speed HDMI to HDMI Cable, Digital Video with Audio, UHD 4K, Black, 6 ft. (1.83 m) P568-006 P568-006 High-Speed HDMI to HDMI Cable, Digital Video with Audio, UHD 4K, Black, 6 ft. (1.83 m)
4K HDMI Cable with Ethernet (M/M) - 4K 60 Hz, Gripping Connectors, 6 ft. P569-006-CERT P569-006-CERT 4K HDMI Cable with Ethernet (M/M) - 4K 60 Hz, Gripping Connectors, 6 ft.

Need help with your purchase?
We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 773-869-1776 or email