4K 10.2Gbps HDMI HDBaseT Extender via CATx Cable with USB and RS232

Extend a 4Kx2K HDMI display, USB 2.0 device and RS232 up to 328 feet away from the source using HDBaseT technology.

XTENDEX® ST-C6USB4K-HDBT (Local & Remote Unit)
  • HDMI Extender for use with Digital Signage

The XTENDEX® 4K HDMI HDBaseT Extender with USB and RS232 transmits uncompressed digital 4Kx2K HDMI signal, USB and RS232 up to 328 feet over a single CATx cable using HDBaseT technology. Each extender consists of a local unit that connects to a computer and a remote unit that connects to a UHD HDMI display and USB 2.0 device.

The XTENDEX® 4K HDMI HDBaseT Extender with USB and RS232 transmits uncompressed digital 4Kx2K HDMI signal, USB and RS232 up to 328 feet over a single CATx cable using HDBaseT technology. Each extender consists of a local unit that connects to a computer and a remote unit that connects to a UHD HDMI display and USB 2.0 device.


  • Transmits an uncompressed high speed HDMI signal over one CAT6/6a/7 cable.
  • Supports Ultra-HD 4Kx2K resolutions to 3840x2160, 2K resolution 2048x1080, HDTV resolutions to 1080p, and up to 1920x1200 (WUXGA).
  • HDMI features supported:
    • x.v.Color, sYCC601 color, Adobe RGB Color and Adobe YCC601 color
    • Dolby TrueHD, DTS-HD Master Audio, Dolby Digital, and DTS
    • Bandwidth up to 340 MHz (10.2 Gbps).
    • Support for CEC (consumer electronic control) compatible devices.
    • 3D
    • Lip Sync
  • HDCP compliant.
  • Supports the DDC2B protocol.
  • USB 2.0 port for keyboard, mouse, flash drive, HDD, or touchscreen display.
    • Compliant with USB 2.0 (low/full/high speed) standards.
    • Use a USB hub to extend multiple USB devices.
  • Supports full-duplex RS232 up to 115200 baud.
  • Compact size.
  • Optional mounting bracket for easy surface/wall mounting.
Local Unit
  • Compatible with a USB computer (PC, SUN and MAC) with Ultra-HD HDMI output.
    • Use an HDMI to DVI adapter/cable to connect a DVI source.
      • If a DVI source is used, a DVI monitor must be connected to the remote unit.
  • Multiplatform support: Windows 7/8/10, Windows Server 2008/2012/2016/2019, Solaris, Linux, FreeBSD, and MAC OS 10/11.
  • One female HDMI connector.
  • One female USB Type Mini B connector.
  • 3-pin screw terminal for RS232.
  • One female RJ45 port for sending/receiving UHD video, audio, USB, RS232 and DDC signals.
Remote Unit
  • One female HDMI connector for display.
    • If an HDMI display is used, an HDMI or DVI source can be connected to the local unit.
    • Use an HDMI to DVI adapter/cable to connect a DVI display.
      • If a DVI monitor is used, a DVI source must be connected to the local unit.
  • One female USB Type Mini B connector for connecting USB keyboard, mouse, flash drive, HDD, or touchscreen display.
    • Use a USB hub to extend multiple USB devices.
  • 3-pin screw terminal for RS232.
    • Support full-duplex RS232 up to 115200 baud.
  • Supported video resolutions:
    • Ultra-HD 4Kx2K resolutions:
      • 3840x2160 at 60Hz, 4:2:0
      • 3840x2160 at 30Hz, 4:4:4
    • 2K Cinema (2048x1080 at 60Hz)
    • HDTV resolutions to 1080p
    • Up to 1920x1200 (WUXGA)
  • Supports embedded digital audio through HDMI compatible TVs or audio receivers.
  • Dimensions
    • WxDxH (in): 1.73x2.87x0.98 (44x73x25mm)
    Power
    • Local and remote unit:
      • Input: 100 to 240 VAC at 50 or 60 Hz via AC adapter. (US AC adapter included.)
      • Output: 5VDC, 2A
    Environmental
    • Operating temperature: 32 to 122°F (0 to 50°C).
    • Storage temperature: -4 to 167°F (-20 to 75°C).
    • Operating and storage relative humidity: 5 to 95% non-condensing RH.
    Regulatory Approvals
    • CE, FCC, RoHS
    • TAA compliant.
    Warranty
    • Two years
    Max Distance
    • 328 feet (100 meters) over CAT6/6a/7 cable.
    Cables
    • Interface cables between the source/display and the transmitter/receiver are required for proper operation.
      • Supports cable lengths to 30 feet.
      • Cables longer than 30 feet can be used provided they have a built-in video equalizer (also known as "active HDMI cables").
    • Use HD-xx-MM cable to connect an HDMI source or display.
    • Use DVI-HD-xM-MM cable to connect a DVI source or display.
      • If a DVI source is used, a DVI monitor must be connected to the remote unit.
    • Use HD-ACT-xx-MM 4K HDMI Active Cables to connect an HDMI source or display up to 100 feet.
    • Use CAT6/6a/7 solid straight through cables for TIA/EIA 568B wiring terminated with standard RJ45 connectors.
    • Cables not included.

    Application Drawings

    • How to extend a 4Kx2K HDMI display, USB 2.0 device and RS232 up to 328 feet away from the source
      4K HDMI Extender via CATx Cable with USB and RS232
    • "The ST-C6USB4K-HDBT is a good looking box, and it worked as intended and quickly. Other KVM's took several seconds to establish HDMI video, and this one did it almost instantly. Very responsive, which gives us good confidence in this product."

      Sean C.
      ProCustom Group
      Azusa, CA

    4K 10.2Gbps HDMI HDBaseT Extender via CATx Cable with USB and RS232

    NTI Part # Description Price Quote Buy
    ST-C6USB4K-HDBT 4K 10.2Gbps HDMI Extender via CATx Cable with USB and RS232 $875.00
    MK-STC6USB4KHDBT VESA Mounting Bracket for ST-C6USB4K-HDBT Remote Unit $50.00

    HDMI Male-Male Cable

    NTI Part # Length Price Quote Buy
    HD-3-MM 3 feet $4.50
    HD-6-MM 6 feet $6.00
    HD-10-MM 10 feet $7.10
    HD-15-MM 15 feet $10.50
    HD-25-MM 25 feet $16.50
    HD-30-MM 30 feet $31.50

    HDMI Active Cables, Male to Male, Built-In Signal Booster

    NTI Part # Length Price Quote Buy
    HD-ACT-20-MM 25 feet $47.00
    HD-ACT-25-MM 25 feet $57.00
    HD-ACT-30-MM 30 feet $67.00
    HD-ACT-40-MM 40 feet $78.00
    HD-ACT-50-MM 50 feet $103.00
    HD-ACT-60-MM 60 feet $110.50
    HD-ACT-75-MM 75 feet $134.00
    HD-ACT-100-MM 100 feet $159.00

    DVI-D Male to HDMI-A Male Single Link Cable

    NTI Part # Length Price Quote Buy
    DVI-HD-1M-MM 1 meter $4.30
    DVI-HD-2M-MM 2 meter $8.00
    DVI-HD-3M-MM 3 meter $10.00
    DVI-HD-5M-MM 5 meter $11.00

    USB 2.0 Cables, Male A to Male Mini-B 5-Pin

    NTI Part # Length Price Quote Buy
    USB2-ABM5-1-MM 1 foot $1.28
    USB2-ABM5-3-MM 3 feet $1.40
    USB2-ABM5-6-MM 6 feet $1.92
    USB2-ABM5-10-MM 10 feet $2.84
    USB2-ABM5-15-MM 15 feet $3.72

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    PWR-UNVAS3112 Universal AS/NZS 3112 Power Adapter for Australia, New Zealand, China $5.00
    PWR-UNVBS1363 Universal BS 1363 Power Adapter for UK, Iraq $5.00
    PWR-UNVBS546-D Universal BS 546 Type D Power Adapter for India, Parts of Africa $6.00
    PWR-UNVBS546-M Universal BS 546 Type M Power Adapter for South Africa $6.00
    PWR-UNVCEI2350 Universal CEI 23-50 Power Adapter for Italy, Uruguay $4.60
    PWR-UNVCEE716 Universal Europlug CEE 7/16 Power Adapter for Europe, Russia, UAE $5.00
    PWR-UNVCEE77 Universal Schuko CEE 7/7 Power Adapter for Europe $5.50
    PWR-UNVSEV1011 Universal SEV 1011 Power Adapter for Switzerland $6.00
    PWR-UNVSI32 Universal SI 32 Power Adapter for Israel, Palestine $5.00