NTI VGA/USB + Audio KVM Extender Kit via CAT5 (Transmitter & Remote)


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The XTENDEX¨ ST-C5USBVA-300 USB/VGA + Audio KVM extender extends a USB keyboard/mouse, stereo audio and VGA display up to 300 feet via CAT5/5e/6/6a cable. Each ST-C5USBVA-300 consists of a local unit that connects to a computer and provides local keyboard, monitor, stereo audio and mouse connections, and a remote unit that connects to a keyboard, monitor, externaly powered speakers and mouse. The local and remote units are interconnected via CAT5/5e/6/6a cable.

  • Supports local and remote access.
  • Compatible with all video resolutions up to WUXGA (dependant upon CAT5/5e/6/6a extension length).
  • Supports resolutions to 1920x1440.
  • Stereo audio can be heard both locally and remotely.
  • Line level output; supports multimedia speakers.
  • Optional local unit supporting two remote users available (ST-2C5USBVA-L-300) - extend two remote units up to 300 feet. (91 meters)
       * Local access not available on units supporting two remote users.
  • High quality, rugged steel construction with durable powder coat finish.
  • Supports most USB keyboards and mice, including some wireless models.
       * Supports Logitech M100/M-BZ96C/M310 and Dell 0XN967/K251D/XN966/0Y357C mice.
  • Keyboard and mouse are hot-pluggable.
  • Keep-alive keyboard/mouse emulation for flawless operation.
  • Multiplatform support: Windows 2000/XP/Vista/7, Windows Server 2000/2003/2008, Solaris, Linux, FreeBSD and MAC OS 9/10.
  • Built-in surge protection.
  • Allows users to back-rack broadcast quality servers without impact to post-production operations.

NTI ST-C5USBV-300 USB/VGA KVM extender Application Diagram
NTI 300' VGA/USB KVM Extender Application Diagram
(Image shows ST-C5USBV-300 Version without audio)

ST-C5USBVA-300 Specifications:

Width3.5 in. (8.9 cm.)
Height1.2 in. (3.0 cm.)
Depth3.1 in. (7.9 cm.)
Maximum Resolution w/ CAT5/5e/6 UTP
(refresh frequency 60Hz)
1024 x 768 @ 60Hz- up to 300 feet
1600 x 1200 @ 60Hz- up to 150 feet
1920 x 1440 @ 60 Hz- up to 100 feet
Maximum Resolution w/ CAT5/5e STP
(refresh frequency 60Hz)
1024 x 768 @ 60Hz- up to 300 feet
1280 x 1024 @ 60Hz- up to 150 feet
1600 x 1200 @ 60Hz- up to 100 feet
Video Compatibility WUXGA,UXGA,SXGA, XGA, SVGA, VGA
Video Quality Variable for up to 300 feet of CAT5 cable
Video CouplingDC
Video ConnectorsHD15 male to CPU
HD15 female to local and remote monitors
Sync Types SupportedSeparate and composite TTL Level
Video Signal TypeAnalog RGBHV,RGBS
Maximum Input/Output Levels1.45Vp-p (no offset)
Input / Output Impedance 75 Ohms
Input Horizontal Frequency Range 15kHz to 130 kHz
Input Vertical Frequency Range30 Hz to 150 Hz
Signal TypeLine Level, stereo, unbalanced
Connectors Local Unit 3.5mm Stereo Plug, Pigtail,
 3.5mm Stereo Jack, PCB
Connectors RemoteUnit3.5mm Stereo Jack, PCB
Maximum Input Level2.82 Vp-p (unbalanced)
Input Impedance10 kohms
Maximum Output Level 3.1 Vp-p
Frequency Response 20 Hz to 20 kHz, + 1dB
Stereo Channel Separation>70dB @ 1 kHz
Keyboard/Mouse ConnectorsUSB Type A female- to local and remote keyboard/mouse
USB Type A male- to CPU
Interconnect CableCAT5/5e Solid UTP/STP EIA/TIA 568B wiring w/ male RJ45 connectors
    - OR-
CAT6 Solid UTP EIA/TIA 568B wiring w/ male RJ45 connectors
Remote and Local Unit Power120V or 240V (50 or 60Hz) 9VDC/1.0A via AC Adapters
Operating temperature32 to 100°F (0 to 38°C)
Storage temperature-20 to 140°F (-30 to 60°C)
Operating and Storage Relative Humidity17 to 90% non-condensing
Regulatory ApprovalCE RoHS
WarrantyTwo years