4K Digital Signage Player

Simple CMS software UI and the built-in Wi-Fi connectivity

ST-700 integrates silex's Wi-Fi module for robust wireless connectivity to build a local Wi-Fi network or integrate into your enterprise Wi-Fi network with 802.1X. Free CMS software is designed to be as simple and easy to use as possible for customers.


4K Digital Signage Player for various scenes 

The ST-700 supports pre-installed single screen or split-screen contents, multi-display digital signage, HTML5 contents, and content from an external source into HDMI input. SX Sign Control Software makes content management easier and simpler than ever.

Preloaded and scheduled contents playback


Content stored in the ST-700's internal storage (20 Gbyte) is automatically played back as scheduled. You can distribute your contents to each ST-700 installed in your network with free contents management software "SX Sign Control Software."

Split Screen Content


The ST-700 supports up to 8 layers to split your screens for different contents such as a video, images, HTML5 contents, and scrolling text on each layer.
up to 1080p for split-screen contents
minimum HTML content duration is 2 minutes and up to two simultaneous HTML contents
Only one video content in the split-screen contents

Multi-Display Digital Signage


Multiple ST-700s enable multi-screen digital signage. Up to 9 ST-700s synchronize each other to playback your content among multiple displays.


HTML5 with Touch Control



The ST-700 features a web browser to support HTML5 contents. The ST-700 converts the touch panel to a touch control digital signage by connecting them via USB.


HDMI Passthrough



The ST-700 supports HDMI passthrough when you'd like to switch between content from an external source and locally stored contents.


Contents Management Software - SX Sign Control


  • Contents creation and group management
  • ST-700 device and group management
  • Scheduling
  • Contents distribution over your network
  • Mapping between user input and a content
  • Preview
Item Description

Windows 8.1

Windows 10 (Recommendation)

Language English
Mandatory setup

Microsoft .NET Framework 4.6 and later

Windows Media Player

Supported Web browser

Microsoft Edge (Chromium version): 87.0.664.75 and later

Microsoft Edge: 44.19041.1.0 and later

Google Chrome: 87.0.4280.141 and later

Mozilla Firefox: 84.0.2 and later

Supported resolution 1024 x 768 and larger
Supported Device ST-700



- operation as a desktop application

- No Windows RT support

- No Internet Explorer support

- Windows Media Player is mandatory to preview the contents

- Video extension function is mandatory to preview or split the screen of H.265 contents

- Codec pack is required to preview VP8, VP9 or Theora format contents

Part Number ST-700
Wired LAN

1 x 100BASE-TX/1000BASE-T

1 x 802.3at compliant 100BASE-TX/1000BASE-T (PoE PD)

Wireless LAN

802.11a/b/g/n/ac 1T x 1R



2 x USB 2.0

1 x USB 3.0 *1

Switch 2 x push switches

Body: 5 LEDs

Ethernet: 2 LEDs per port

Operating Condition

Temperature: -10 - 40C

Humidity: 20 - 90% RH

Storage Condition

Temperature: -10 - 50C

Humidity: 20 - 90% RH


802.3at PoE

AC adapter 100-240V 50/60Hz (output DC 12V) *2

Maximum Power consumption 13.2W (DC12V / 3A)
Dimension 200mm x 145mm x 35mm
Weight 450g
Certification FCC / CE
Video interface HDMI 1.4b input / HDMI 1.4b output 
Video codec H.264, H.265/HEVC
Audio interface HDMI output, stereo 3.5mm mini (output)
Audio sampling rate 32kHz/44.1kHz/48kHz/96kHz
Security Hidden SSID/MAC address filtering/Contents encryption
Playback file format


Video: MP4, WEBM, OGV

Audio: AAC


Contents update Network, USB
Maximum number of split screen 8
Text format Font, Font color, Font background color, scroll speed
Warranty 5 years

*1 USB 3.0 port is for future use

*2 AC adapter's operating temperature is 0 - 40C

* ST-700 must communicate with a NTP server or a computer running SX Sign Control Software to play the contents as scheduled.


Resolution aspect ratio max. refresh rate
480p (720 x 480) 4:3 60Hz
720p (1260 x 720) 16:9 60Hz
1080p (1920 x 1080) 16:9 60Hz
2160p (3840 x 2160) 16:9 30Hz


Bracket Type V


Optional bracket to mount ST-700 on a wall or back of display with VESA hole patterns.


Please check this page later for these documents.

ST-700 quick setup guide

ST-700 User Manual

SX Sign Control Software

Declaration of Conformity


Application Software
Software Utility Version Note Date
SX Sign Control Software 1.2.1 Minor fixes February 14, 2022



Will be communicated when the new version becomes available.

Product Version Date
ST-700 T.B.D. T.B.D.



Download the firmware file. Unzip the downloaded file to any folder. It has the firmware update manual and the firmware file (.bin).

Note: This firmware includes programs that are subject to open source licenses. For the target OSS information, click here.


 Warranty and RMA's

Limited Warranty and RMA (Return Merchandise Authorization) Policy