HDMI splitter extra digital CA912711 1x8 4K – distributes one HDMI input to eight outputs

The extra digital CA912711 HDMI splitter duplicates a single HDMI source to eight HDMI displays, supporting resolutions up to 3840x2160 at 30 Hz. It is suitable for distributing one HDMI output from devices such as DVD players, set-top boxes or A/V receivers to multiple monitors or projectors and can also be used to regenerate an HDMI signal at the end of a long cable run.

Advantages

This HDMI 1.4b splitter provides simultaneous output to eight HDMI sinks with support for 8/10/12-bit deep colour and common audio formats including DTS-HD, Dolby TrueHD, DTS and Dolby AC3. It supports a maximum TMDS clock of 340 MHz and a data rate up to 3.4 Gbps. The unit is plug-and-play and accepts standard AWG26 HDMI cabling with specified input and output cable length limits for 1080p and 4K signals.

Suitable for

• Multi-screen presentations in meeting rooms and classrooms
• Retail digital signage and point-of-sale displays
• Home AV setups where one source must feed multiple TVs or projectors
• Situations needing HDMI signal regeneration at the end of long cable runs

Key specifications

• Model: extra digital CA912711
• HDMI version: 1.4b
• Maximum resolution: 3840 x 2160 @ 30 Hz
• Max bandwidth / TMDS clock: 340 MHz
• Max data rate: 3.4 Gbps
• Colour depth: 8/10/12 bit
• Supported audio: DTS-HD, Dolby TrueHD, DTS, Dolby-AC3, DSD
• Input cable distance (AWG26): <10 m for 1080p, <5 m for 4K
• Output cable distance (AWG26): <20 m for 1080p, <10 m for 4K
• Power adapter: AC 100–240 V input, DC 5 V output (1 A)
• Max working current: 1.58 A
• Operating temperature: -15 to +55 °C
• Dimensions: 276 x 136 x 24 mm
• Weight: 660 g
• Warranty: 24 months

How to use

Connect one HDMI cable from your source device (for example a DVD player, A/V receiver or set-top box) to the splitter input. Use up to eight HDMI cables to connect each display to the splitter outputs. Plug the supplied 5 V power adapter into the splitter and a mains outlet. The device is plug-and-play and will duplicate the source signal to all connected displays; ensure cable lengths and resolutions follow the specified limits for reliable operation.

Usage recommendations

For stable 4K/30Hz operation use AWG26 HDMI cables within the recommended distances (input <5 m, outputs <10 m). If longer runs are required, place the splitter at the end of the long cable to regenerate the HDMI signal or use active/extender solutions. Keep the unit in an environment within the specified temperature range and use the provided power adapter.