Features
Type	AV transmitter & receiver
Maximum resolution	3840 x 2160 pixels
Cable types supported	Cat5e, Cat6
Maximum transfer distance	70 m
Maximum refresh rate	60 Hz
Audio output channels	7.1 channels
LED indicators	Link, Power
Bandwidth	10.2 Gbit/s
Material	Metal
HDCP version	1.4
Product colour	Black
HDCP
Rack mounting
Daisy chain
Logistics data
Harmonized System (HS) code	85176200
Master (outer) case width	437 mm
Master (outer) case length	410 mm
Master (outer) case height	378 mm
Products per master (outer) case	30 pc(s)
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Storage temperature (T-T)	-20 - 60 °C
Operating relative humidity (H-H)	20 - 90%
Packaging content
AC adapter included
IR blaster included
IR receiver included
Packaging data
Package width	116 mm
Package depth	205 mm
Package height	77 mm
Package weight	500 g
Ports & interfaces
Connectivity technology	Wired
RJ-45 input ports	1
RJ-45 output ports	1
HDMI in	1
Number of HDMI outputs	2
Remote (IR) input	1
Remote (IR) output	1
DC-in jack
Power
AC input voltage	100 - 240 V
Operating voltage	12 V
Input current	0.3 A
Output current	1 A
Power consumption (typical)	0.1 W
Power plug type	Type M
External power adapter
Technical details
Compliance certificates	CE, RoHS
Weight & dimensions
Width	69 mm
Depth	57 mm
Height	17 mm
Weight	130 g

The StarTech.com EXTEND-HDMI-4K40C6P1 is an AV transmitter & receiver kit for transmitting HDMI signals over Ethernet cables (Cat5e or Cat6). It is designed for extending audio and video signals over longer distances, achieving a maximum range of 70 meters at 1080p resolution or 40 meters at 4K (3840 x 2160 pixels). Transmission occurs via a single Cat5e or Cat6 cable, allowing existing network infrastructures to be utilized. The device supports HDMI 1.4 and HDCP 1.4, ensuring compatibility with many modern source devices and displays. The maximum bandwidth is 10.2 Gbit/s, sufficient to transmit high-resolution video signals at 60 Hz for 1080p and 30 Hz for 4K. Colour accuracy is ensured by 4:4:4 chroma subsampling, enabling a crystal-clear image without colour loss.

Applications
This extender kit is designed for professional applications, particularly in offices, shopping centres, airports, hospitals, or trade fairs, where digital signage units need to be operated over long distances. The use of existing Cat5e or Cat6 network cables reduces installation costs and simplifies integration into existing IT infrastructures. The solution is also suitable for conference rooms and meeting halls, where a signal from a central device must be transmitted to multiple screens.

Features and equipment in detail
The kit consists of a transmitter and a receiver connected via a single Ethernet cable. The transmitter features an HDMI input and an HDMI output, allowing a local display to be connected or the solution to be cascaded with another extender. Power supply is provided via an external power adapter connected to the transmitter. This is particularly advantageous in rooms with limited power supply. The device supports 7.1-channel audio, making it suitable for comprehensive home cinema or entertainment systems.

Technology explained simply
Transmission occurs via RJ-45 connectors connected with Cat5e or Cat6 cables. The maximum range depends on resolution: 40 meters at 4K (3840 x 2160) and up to 70 meters at 1080p. Data transmission takes place via a wired point-to-point connection, without requiring IP configuration, software, or drivers. LED indicators for power and link connection allow for quick visual verification of operational status. The housing is made of metal and features integrated mounting brackets, enabling professional installation on walls or in enclosures.

Compatibility and accessories
The device is compatible with Cat5e and Cat6 cables. IR control is implemented via an included IR kit with an IR blaster and an IR receiver, each connected by 1.5-meter cables. The IR components feature adhesive surfaces for easy mounting. Cascading (daisy-chaining) is possible, allowing multiple extenders to be connected in series.

Installation and mounting
Installation is plug-and-play: devices are connected via HDMI to the source and display, and the Ethernet cable connects transmitter and receiver. The external power adapter is connected to the transmitter, while the receiver is powered via PoC. Integrated mounting brackets facilitate attachment to walls or enclosures. The operating temperature range is 0 °C to 40 °C, and the storage temperature range is -20 °C to 60 °C. Relative humidity during operation is 20 % to 90 %, non-condensing.

Operational advantages
The solution reduces the number of required cables and power connections, as only one power connection is needed at the transmitter. The plug-and-play installation without software or drivers accelerates commissioning. Support for 4K resolution and 7.1-channel audio makes the device suitable for demanding applications. IR control enables remote operation of devices at the receiver location, simplifying operation in large rooms or with digital signage. The robust metal housing and integrated brackets ensure a durable and professional installation.

The device is certified with the conformity certificates CE and RoHS. The warranty period is two years.