CUSB-V604H

4K UHD+ HDMI to USB Video Capture Recorder

Operation Manual

DISCLAIMERS
The information in this manual has been carefully checked andis believed to be accurate. Cypress Technology assumes noresponsibility for any infringements of patents or other rights of third
parties which may result from its use.
Cypress Technology assumes no responsibility for any inaccuracies
that may be contained in this document. Cypress also makes nocommitment to update or to keep current the information containedin this document.
Cypress Technology reserves the right to make improvements to thisdocument and/or product at any time and without notice.

COPYRIGHT NOTICE
No part of this document may be reproduced, transmitted,transcribed, stored in a retrieval system, or any of its part translated
into any language or computer file, in any form or by any means—electronic, mechanical, magnetic, optical, chemical, manual, orotherwise—without express written permission and consent from
Cypress Technology.
© Copyright 2018 by Cypress Technology.
All Rights Reserved.

TRADEMARK ACKNOWLEDGMENTS
All products or service names mentioned in this document aretrademarks of the companies with which they are associated.

SAFETY PRECAUTIONS
Please read all instructions before attempting to unpack, install oroperate this equipment and before connecting the power supply.
Please keep the following in mind as you unpack and install thisequipment:•

Always follow basic safety precautions to reduce the risk of fire,electrical shock and injury to persons.

•To prevent fire or shock hazard, do not expose the unit to rain,moisture or install this product near water.

•Never spill liquid of any kind on or into this product.

•Never push an object of any kind into this product through any
openings or empty slots in the unit, as you may damage parts
inside the unit.

•Do not attach the power supply cabling to building surfaces.

•Use only the supplied power supply unit (PSU). Do not use the PSU
if it is damaged.

•

Do not allow anything to rest on the power cabling or allow any
weight to be placed upon it or any person walk on it.

•To protect the unit from overheating, do not block any vents or
openings in the unit housing that provide ventilation and allow forsufficient space for air to circulate around the unit.

•Please completely disconnect the power when the unit is not in
use to avoid wasting electricity.

VERSION HISTORYREVISIONDATESUMMARY OF CHANGE

VS018/09/18

Initial technical review

CONTENTS
1. Introduction������������������������������������������������������1
2. Applications�����������������������������������������������������1
3. Package Contents������������������������������������������1
4. System Requirements��������������������������������������2
5. Features������������������������������������������������������������2
6. Operation Controls and Functions�����������������3
6.1 Front Panel������������������������������������������������� 3
6.2 Rear Panel�������������������������������������������������� 4
6.3 Configuration and Video Capture��������� 5
6.3.1 Video Capture Configuration�������� 5
6.3.2 Video Capture��������������������������������� 7
7. Connection Diagram��������������������������������������8
8. Specifications��������������������������������������������������98.1 Technical Specifications�������������������������� 9
8.2 Video Specifications������������������������������� 108.3 Audio Specifications������������������������������� 11
8.4 Cable Specifications������������������������������ 12
9. Acronyms�������������������������������������������������������12

1. INTRODUCTION
This HDMI to USB video capture recorder with HDMI bypass can
support resolutions up to 18Gbps (600MHz) 4K UHD with HDR (via thebypass path) while simultaneously streaming the audio and video
signal at 1080p to a USB connected PC for capture or re-broadcast.
HDMI sources up to 1080p60 are supported for capture without
modification, while 4K sources will be automatically scaled down to1080p. The use of a special video timing stabilization feature helps toensure that the USB capture stream won’t lock up or drop, even if theHDMI input source is intermittent or becomes disconnected. Digitalstereo audio from either HDMI (LPCM 2.0) or the 3.5mm analog audio
input will be captured with the HDMI video source and is selectablewithin the configuration software.
USB capture is accomplished using the UAC (USB Audio Class) andUVC (USB Video Class) standards, allowing the unit to support mostcommon video capture, chat, or streaming software, including
support for the Free OBS (Open Broadcaster Software) streaming
software which is available for Windows PC, macOS and Linux. Theunit is powered directly by the USB 3.0 port so an external power
supply is not required (A Y-cable is required when connected via USB
2.0 in order to deliver the necessary power). Availability and access tothe controllable features of the unit depend on the capture softwareused.

2. APPLICATIONS• Live video stream recording for broadcast• Security camera recording• Gameplay video archival

3. PACKAGE CONTENTS• 1×HDMI to USB Video Capture Recorder• 1×USB 3.0 Cable (Type-B to Type-A)• 1×Shockproof Feet (Set of 4)• 1×Operation Manual1

4. SYSTEM REQUIREMENTS• HDMI source equipment such as a media player, video game
console or set-top box.
• HDMI receiving equipment such as an HDTV, monitor or audio
amplifier.
• Personal computer (Windows or macOS) with a USB 3.0 port andplenty of available hard drive space.

5. FEATURES• HDMI input and output with HDR, 3D & 4K@60Hz support, DVI 1.0compatible• HDCP 2.2 and HDCP 1.x compliant• Supports up to 4K UHD (18Gbps, 4K@50/60Hz 4:4:4, 8-bit) video inputand output• Supports Deep Color input and output up to 12-bit• Supports 10-bit and 12-bit HDR (High Dynamic Range) input/output• Automatically scales 4K sources to 1080p for USB capture• Unit may be powered directly via USB 3.0 (When using USB 2.0, aY-cable is required to provide additional power)• Supports video timing stabilization to help ensure a reliable andstable USB capture stream• Capturing over USB 3.0 allows uncompressed video and audio data
capture (up to 1080p, LPCM 2.0)
• Capturing over USB 2.0 requires the application of minimal MJPEG
compression to the video and audio data (up to 1080p, LPCM 2.0)
• Supports capturing 2 channel digital audio from either HDMI (LPCM2.0) or the 3.5mm analog audio input (selectable via configurationsoftware)• Compliance with the UAC (USB Audio Class) and UVC (USB VideoClass) standards, allows the unit to support most common capture
and video streaming software
Note: Availability and access to the controllable features of the unit
depend on the capture software used.
• Support for the Free OBS (Open Broadcaster Software) streaming
software which is available for Windows PC, macOS and Linux2

6. OPERATION CONTROLS AND FUNCTIONS
6.1 Front PanelPOWER

ACTIVE /RECORD

HDCP

1231 POWER LED: This LED will illuminate RED to indicate the unit is on andreceiving power but does not yet have a live HDMI source. Whena live HDMI source is detected, the LED will illuminate GREEN.

2 ACTIVE/RECORD LED: When software on the connected PC isactively receiving video from the unit via USB, this LED will illuminate
GREEN.

3 HDCP LED: This LED indicates the HDCP state of the connected

HDMI source. If the source is using HDCP 1.x, the LED will illuminate
RED. If the source is using HDCP 2.2, the LED will illuminate BLUE. If
the source is not using HDCP, the LED will remain off.

Note: Recording video sources containing HDCP protection is notsupported by this unit. Only HDMI bypass will be active with HDCP
sources.

3

6.2 Rear PanelUSB 3.0

HDMI OUT

HDMI IN

AUDIO IN

1234

1 USB 3.0 PORT: Connect directly to a PC’s USB 3.0 port for control,
video capture and power.

Note: If connected via USB 2.0, use of a Y-cable connected to 2USB 2.0 ports is required in order to properly power the unit.

2 HDMI OUT PORT: Connect to an HDMI TV, monitor or amplifier for
digital video and audio output.

3 HDMI IN PORT: Connect to HDMI source equipment such as amedia player, game console or set-top box.

4 AUDIO IN PORT: Connect to the stereo analog output of a device
such as an audio player or PC.

4

6.3 Configuration and Video Capture
6.3.1 Video Capture Configuration
The USB Video Capture Control software provides control over aselection of basic functions of the unit, including: audio source, HDCP,video settings and volume. An option to return the unit to its factory
defaults is also provided.
Note: Please obtain the “USB Video Capture Control” software fromyour authorized dealer and save it in a directory where you can easilyfind it. Both Windows and macOS versions are available.
To use the software, connect the unit to your PC via the provided USB
3.0 cable and then execute the control application. A configuration
window, similar to the screenshot below, will appear. All changes
made to the video capture signal via this app will take effectimmediately.

1) Audio Source: Switch the audio source to record between theembedded HDMI audio and the analog line input.
Note: Only LPCM 2.0 audio can be recorded. Bitstream audio isnot supported.
2) HDCP: Enable or disable HDCP support on the HDMI input.

5Note: Disabling HDCP support may enable the recording of theoutput of some source devices (typically PCs/Macs) that enable
HDCP encryption even when it is not required by the current
video content. Once HDCP support is disabled on this unit, theconnected device should automatically switch to a non-HDCPmode as long as the playing content allows it. Certain othersource devices (such as most major video game consoles) enable
HDCP output by default, but will not automatically disable HDCP
based on the connected device’s reported capabilities. In orderto enable video recording of the output of these devices, HDCP
must be manually disabled using the game console’s own systemmenu.
3) ProcAmp Controls: This section provides direct control over avariety of video and audio settings when video capture is active.
Note: Changes to these settings have no impact on the HDMIbypass output signal.
■

Brightness: Provides control over the overall brightness of thecaptured video.

■

Contrast: Provides control over the overall contrast of thecaptured video.

■

Hue: Provides control over the hue shift of the captured video.

■

Saturation: Provides control over the color saturation level ofthe captured video.

■

Sharpness: Provides control over the amount of sharpness
processing to apply to the captured video.

■

Volume: Provides control over the audio volume of thecaptured video.

■

Mute Audio: Mutes or unmutes audio in the captured video.

4) Factory Reset: Press the “Factory Reset” button to reset the unit
to its factory default state. After the reset is complete, the unit will
reboot automatically.
5) Detailed Signal Information: This section provides detailed
information about the current source and capture resolution,
HDCP state, DDC and hot-plug voltages, audio format and sample
rate, and current firmware version.

66.3.2 Video CaptureVideo capture is accomplished using 3rd party software. The choiceof video capture software is entirely up to the user. This unit adheresto the UAC (USB Audio Class) and UVC (USB Video Class) standards,
allowing the unit to support most common video capture, chat,or streaming software, including support for the Free OBS (OpenBroadcaster Software) streaming software, among many otherchoices. Availability and access to the controllable features of the unit
(such as capture resolution, recording storage format, etc.) depends
on which features the specific capture software package chooses toexpose.
Note: Many source devices (such as most major video game consoles)
force HDCP output by default, even when it is not required by thecontent currently being output. In order to enable video recording of
the output of these devices, HDCP must be manually disabled using
the game console’s own system menu.

77. CONNECTION DIAGRAM
Game ConsoleHDMI
Input

USB 3.0

HDMI OUT

CD Player

StereoInput

HDMI IN

AUDIO INUSB
USB 3.0 Equipped
PC/Laptop

HDMI
OutputUHDTV

8

8. SPECIFICATIONS
8.1 Technical Specifications
HDMI Bandwidth

600MHz/18Gbps

Input Ports

1×HDMI
1×Stereo (3.5mm)

Output Ports

1×HDMI
1×USB 3.0 (Type-B)

Power Supply

Powered by USB

ESD Protection

Human Body Model:±8kV (Air Discharge)±4kV (Contact Discharge)

Dimensions

128mm×25mm×108mm (W×H×D)[Case Only]
128mm×25mm×117mm (W×H×D)[All Inclusive]

Weight364g

Chassis Material

Metal (Steel)Silkscreen ColorBlack

Operating Temperature

0 ˚C–40 ˚C/32 ˚F–104 ˚F

Storage Temperature-20 ˚C–60 ˚C/-4 ˚F–140 ˚F

Relative Humidity

20–90% RH (Non-condensing)Power Consumption

7.15W

9

8.2 Video Specifications
Input

OutputHDMIHDMI
Bypass720×400@85

720×480p@60



640×480@60/72/75/85



720×576p@50



800×600@56/60/72/75/85



1280×720@50/60



1024×768@60/70/75/85



1280×768@60/75



1360×768@60

1366×768@60



1280×800@60

1152×864@75

1440×900@60

1280×960@60

1280×1024@60



1400×1050@60

1680×1050@60/60 (RB)

1920×1080i@50/60



1920×1080p@24/25/30/50/60



1600×1200@60



1920×1200@60 (RB)

2560×1600@60 (RB)

2560×1440@60 (RB)

3840×2160@24/25/30



Supported Resolutions (Hz)10

InputOutputSupported Resolutions (Hz)

HDMI

HDMI
Bypass3840×2160@50/60 (4:4:4)



3840×2160@50/60 (4:2:0)

4096×2160@24/25/30

4096×2160@50/60 (4:4:4)

4096×2160@50/60 (4:2:0)



8.3 Audio Specifications
Analog Input
Max Audio Level

2Vrms

Impedance

10kΩ

Type

Unbalanced

HDMI Input/Output
LPCM
Maximum Channels

8 Channels

Sampling Rate (kHz)32, 44.1, 48, 88.2, 96, 176.4, 192

Bitstream
Supported Formats

Standard & High-Definition

USB Output
LPCM
Maximum Channels

2 Channels

Sampling Rate (kHz)32, 44.1, 48, 88.2, 96, 176.4, 192

Bitstream
Supported Formats

11None8.4 Cable Specifications1080p

4K30

4K60

HDMI Cable Length

8-bit

12-bit

8-bit

8-bit

Input

15m10m

5m

3mOutput

15m10m5m

3m

9. ACRONYMS
ACRONYMCOMPLETE TERM

ADC

Analog-to-Digital Converter

DDC

Display Data Channel

DVI

Digital Visual Interface

EDID

Extended Display Identification DataHD

High-Definition

HDCP

High-bandwidth Digital Content Protection

HDMI

High-Definition Multimedia Interface

HDR

High Dynamic Range

HDTV

High-Definition Television

LED

Light-Emitting Diode

LPCM

Linear Pulse-Code Modulation

MJPEG

Motion JPEG

PC

Personal Computer

UAC

USB Audio Class

UHD

Ultra-High-Definition

UHDTV

Ultra-High-Definition Television

USB

Universal Serial BusUVC

USB Video Class

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www.cypress.com.tw