NTI HDMI Extender via Two CAT5e/6 up to 300 feet



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The NTI XTENDEX ST-C5HD-300-LC HDMI/DVI Extender transmits digital video and audio signals up to 300 feet using two CAT5e/6 cables. The NTI ST-C5HD-300-LC video extender consists of a local unit that connects to an HDMI/DVI source and a remote unit that connects to an HDMI/DVI display.

NTI XTENDEX ST-C5HD-300-LC Features and Benefits:

  • Transmits an HDMI signal over two CAT5e/6 cables.
  • Supports HDTV resolutions to 1080i and computer resolutions to 1920x1080.
  • HDCP compliant.
  • Compliant with DDWG DVI standard
  • HDMI features supported:
    • 12-bit Deep Color
    • x.v.Color
    • Supports digital audio format, such as LPCM / Dolby Digital (AC-3) / DSD
    • Bandwidth up to 225 MHz (6.75 Gbps)
    • Lip Sync
  • Supports the DDC2B protocol.
  • Only one power supply is necessary to power both the local and remote units.

NTI HDMI Extender via Two CAT5e/6 Diagram
(ST-C5HD-300-LC depicted here)

NTI XTENDEX ST-C5HD-300-LC Package Contents:

  • NTI XTENDEX ST-C5HD-300-LC Local Unit
  • NTI XTENDEX ST-C5HD-300-LC Remote Unit
  • 120 or 240VAC at 50/60Hz-5VDC/2.0A AC Adapter
  • CD containing PDF of user manual

NTI XTENDEX ST-C5HD-300-LC Specifications:

Width1.8 in.
Height0.9 in.
Depth3.3 in.
AC Adapter100 to 240 VAC @ 50/60Hz
Power ConsumptionLocal Unit: powered by remote unit;
Remote Unit: 5W
Operating Temperature5 to 130°F (-15 to 55°C)
Storage Temperature-20 to 140°F (-30 to 60°C)
Relative Humidity5 to 90% non-condensing RH
Remote Unit
Connectors2 x HDMI for display;
1 x RJ45 port for receiving video/audio signals;
1 x RJ45 port for receiving DDC signal
ResolutionsHDTV: Up to 1080i; Computer: Up to 1920 x 1080
Local Unit 
CompatibilityComputer or HDTV with HDMI output
Connectors1 x HDMI (not compatible with nVidia Quadro FX);
1 x RJ45 port for audio/video signals;
1 x RJ45 port for sending DDC signal
Regulatory ApprovalsCE, FCC, RoHS
Question: What is the max distance for good resalition like 1920 X 1080
Answer: Thank you for your inquiry. Maximum distance for video extension depends on a number of factors including the type of cable being run, following cabling best practices and any type of potential electrical interference.

With that being said, the manufacturer states a maximum distance of 100 feet at 1920 x 1200 using CAT5, CAT5e, CAT6 (UTP), and CAT6 (STP).

Additional resolution/distance combinations, using CAT6 (STP), include: 200 feet for 1280 x 1024 and 300 ft for 1024 x 768.

Question: What is the tip size on the power supply? I need to replace the power supply, it is rated at only one amp. The extender requires a 2 amp Supply.
Answer: Thank you for your inquiry,

The package should ship with a 5VDC @ 2.0A power connector, if you have received the wrong power supply, please contact our sales support.

The tip of the barrel power connector is 2.1 mm x 5.5 mm (female). Please refer to the diagram below:

ST-C5HD-300-LC Power Supply & Connector Diagram