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Sequoia 4H & 2H2U

Datasheet (1Mb) | Feature Highlights (2.08Mb)

The Sequoia 4H & 2H2U empower multi-tasking on an unprecedented level.

Sequoia 4H & 2H2U

Multiviewer with Integrated KVM Switcher.

Key Features

Empowered Multi-Tasking: Flexible switching mechanisms allows users to simultaneously monitor up to four HDMI/DVI (4H) or a mix of HDMI/DVI/SDI/Composite (2H2U) connected devices on a single monitor.
Streamlined Operation: Intuitive user interface and commands for monitoring and controlling multiple computers with just one set of keyboard and mouse.
Unlimited Versatility: Freely adjustable features along with cascading ability suit applications from individual users to large-scale institutions.
Sleek Design: Both stand-alone and rack mountable designs.


The Sequoia 4H and 2H2U empower multi-tasking on an unprecedented level.
With integrated mouse and keyboard switcher, custom multiview display and touchscreen support*, these Sequoia Solos streamline monitoring and operation of four computer/video systems with a single set of screen, mouse and keyboard.

*Please contact us for supported touchscreen model capability

The high scalability through cascading multiple Sequoia units allows user to access up to 20 computers from a single mouse/keyboard console. With plug-and-play installation and intuitive control, the Sequoia 4H and 2H2U facilitate productive management of multiple systems and ensure clutter-free working environments.


Plug-and-Play for easy setup; automatic sensing of input signals and optimum output resolution.
Accommodate four computer/video sources with various formats and deliver a quad-view monitoring solution.
Freely adjustable windows with full screen capability for custom monitoring.
Integrated KVM switcher enables multiview layout and remote computer control via one mouse/keyboard.
Built-in USB hubs support a variety of peripheral devices.
USB cascade of multiple Sequoia units streamlines management of all inputs from one mouse/keyboard console.
Seamless switching of operation between connected computers via simple mouse movement (“Surfer” feature).
Intuitive control via on-screen displays, mouse commands, and hot-key combinations.
Avitech Hook Software allows user to customize multiview layout and access to remote computers from a local computer.
Integrated file and folder sharing between systems (optional).
Touchscreen support enables control of the Sequoia unit and connected computers simply by tap of the finger.

Feature Availability & Comparison
Feature Sequoia 4H Sequoia 2H2U
HDMI Inputs 4 2
DVI-I Inputs (via DVI to HDMI adapter) 4 2
3G / HD / SD-SDI / CVBS Inputs 2
HDMI® and HDCP compliant  ✓  ✓
Max. Output Resolution 1920 x 1200 1920 x 1200
Configuration and Control GUI/Hot-key GUI/Hot-key
USB Hub for Remote Computer 2 2
Extended Mic/Audio/Speakers  ✓  ✓
Phoenix-G Software Support  ✓  ✓
Avitech Hook Software Support  ✓  ✓
Avitech ASCII Protocol Support  ✓  ✓
Touchscreen Control*  ✓  ✓
*Contact Avitech for more information on supported touchscreen brands.
Sequoia 4H System Diagram

Sequoia 2H2U System Diagram

Feature Highlights
Quad-View Multiviewer

The Sequoia 4H and Sequoia 2H2U accept and simultaneously display 4 input sources on a single display (quad-view).
Seamless/Instant switch between video and audio source independently.
Freely adjustable image size, position and layering priority; complete layout flexibility as well as full-screen and PiP overlay capability.
Display layout customization via combination of hot-key and mouse commands.
Programmable layout cycling with adjustable time intervals for user-defined presets; complemented control software Phoenix-G for advanced setup and system configuration.

Operating Modes

Incorporating multiviewer with KVM switcher, the Sequoia Series operates under two different modes dedicated to multiviewing configuration and remote control of source computer respectively.
Users can freely switch between the two modes anytime during the operation with no latency.

Built-In KVM Switch and “Surfer” Feature

Simple mouse command allows users to access any source computer (Known as Remote mode); utilizing a single set of keyboard and mouse to remotely control any connected computer.

Instant KVM switching mechanism allows transfer of keyboard and mouse control from one computer to another by simply moving the mouse cursor to the window border of the targeted computer (“Surfer” feature as indicated below).

Touch-Screen Support

The Sequoia Series features touch-screen operation, applicable where interactive touch-screen control is preferred.
Easy source switching, image sizing and positioning, as well as operation of source computers all via USB touch-screen monitors with a tap of finger.

Cascading Sequoia Series

Cascade (Daisy-chain) through USB connection is available between the Sequoia Dual, 4H, and 2H2U. Any combination of
up to 5 Sequoia devices can be cascaded to meet larger application requirements.
One set of keyboard and mouse connected to the Master Sequoia (first Sequoia) is capable of controlling all cascaded Sequoia devices as well as all connected computers (up to 20).
Simple mouse movement toward the edge of a monitor shifts the cursor across monitors (one monitor per Sequoia device)
and switches over control to the corresponding Sequoia device.

Streamlined Multi-tasking

Sequoia Series stands out as a cost-effective solution for monitoring sources efficiently. Its built-in KVM switch allows the user to dynamically access multiple source computers. Utilizing one keyboard and mouse set to control up to 5 Sequoia devices and 20 source computers, Sequoia Series greatly reduces numbers of monitor/control sets as well as cabling complexity in the confined work space. Empowering individuals to multi-task, access more information and respond more effectively in a streamlined manner.

For confidential and security purposes, workstations typically consist of multiple systems under different networks in industries such as military, government, and corporate settings. With classified database being restricted to designated computers without internet access to prevent information leakage or virus incursion. The Sequoia Series allows users to switch access and operate computers dedicated to classified database and opened network interchangeably, as well as various application-specific computers all monitored and managed at one console.

Compact enclosure powered by 12V DC source that is the standardized power supply provided in vehicles, the Sequoia Series is an ideal multi-image processor to be installed in mission-critical vehicles. Such as patrol vehicle, OB van, and mobile control center where numerous computer and video sources are particularly utilized, without the needs for additional power inverter or supply. The Sequoia Series integrates aggregated information to be easily managed and access through single keyboard and mouse set according to application demands, aiming for higher situational awareness as well as effective decision-making in a timely manner.

Enhanced Multiviewing Experience

Sequoia Series displays multi-layering imageries integrated from different sources (PC, guest laptop, video recorder, document camera, etc.), allowing presented slides, instant playback of lecturers and student interactions, as well as additional materials to be freely accessed and configured to any desired layout at that instance.

Control Room and Trading Floor

The Sequoia Series integrates multiple sources to be viewed and accessed simultaneously at one console. Accompanied with extended KVM switcher, Sequoia Series is empowered to reach numerous computers across facilities and deliver real-time video, audio, and control signals ensuring critical information such as traffic and extreme weather conditions, as well as surveillance videos, emergency calls, and hospital routings from various databases can be easily accessible to operators, maintaining full computer access in the safety-critical industries.

Integrating multiple Sequoia devices at trading floors allows traders to simultaneously monitor instant world event, market data and financial information while executing professional software for data analysis on computers away from the trading floor, maintaining streamlined workflow in the space-limited work place at the same time keeping the already stressful environment undisturbed by computer emissions of heat and noise.

INPUT Front Panel 1 x USB-B (communication cascade or access to remote computers from a local computer)
2 x USB-A (mouse/keyboard control)
2 x USB-A (USB 2.0 hubs)
1 x Stereo Phono Jack (microphone)
Rear Panel 1 x RJ-45 (Ethernet)
4 x DB-15 Male (mouse/keyboard connection to source systems)
Sequoia 4H
4 x HDMI (video/audio)
Automatic sensing of input signals (resolution up to 1920 x 1200)
Sequoia 2H2U
2 x HDMI (video/audio)
Automatic sensing of input signals (resolution up to 1920 x 1200)
2 x BNC
Automatic sensing input signals of SDI (3G/HD/SD) / CVBS (NTSC/PAL)
OUTPUT Front Panel 1 x Stereo Phono Jack (stereo/headphone)
2 x Embedded Stereo Speakers
Rear Panel 1 x HDMI (video/audio)
Max. Resolution 1920 x 1200 (WUXGA) @50/60 Hz
1600 x 1200 (UXGA) @75 Hz
LED INDICATORS System 1-4 Indicates when system 1/2/3/4 are in Active or Standby mode
MODE Indicates when Sequoia unit is in Host or Remote mode
PWR Indicates when Sequoia unit is powered-on
OPERATING SYSTEM COMPATIBILITY Windows Microsoft Windows 98 Special Edition / 2000 Professional / XP / Vista / Server 2003 / Server 2008 / Windows 7 / Windows 8
Mac Mac OS X 10.5 or Later Version Only
Linux OS Fedora 10, Ubuntu 8.1, Scientific 5.2, RedHat, Mint 6.0, Debian 5.0, PC Linux OS 2009, SUSE 11.1, Mandriva 2009, CentOS 5.2
PORT SWITCHING METHOD Mouse (“Surfer”) or Keyboard Hot-key combinations / OSD (pop-up menu) / Touchscreen
POWER REQUIREMENTS 100−240V AC / 12V DC Adapter / Max. 25 Watt
DIMENSION (LxWxH) 10.30 x 7.00 x 1.70 inch (26.10 x 17.40 x 4.40 cm)
WEIGHT 2.77 lbs (1.26 Kg)
Specifications are subject to change without notice.


Sequoia Series Feature Comparison
Sequoia Dual Sequoia 4H Sequoia 2H2U
I/O 4 Input 1 Output
HDCP Compliance
Embedded System and Refined GUI
Multi-Image Display Dual-View Quad-View Quad-View
PiP Overlay Capability
Free Layout Adjustment Mouse Command on GUI Mouse Command/Hot-Key Mouse Command/Hot-Key
OSD (Cursor, 3D Border, Label, Pop-Up Icon)
KVM Switch
Surfer Feature
User-Defined Preset >50 23 Max 23 Max
Preset Briefing/Looping
System Configuration Directly on GUI Phoenix-G Software Phoenix-G Software
Touch Operation Multi-Touch Single-Touch Single-Touch
Built-in USB Hub Extend to Source Computer One Hub Two Hubs Two Hubs
Built-in File/Folder Transfer Utility
Ethernet Output Stream (Remote Monitoring and Control)
Embedded Audio I/O
Embedded Speakers
Communication Cascading with up to 4 Other Sequoia Series

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