The Turtle AV Boardroom Buddy HDMI TX — 4K60 HDBaseT Transmitter sits at the presenter end of a meeting room AV installation, accepting an HDMI 2.0b video source and transmitting it at 4K60 4:4:4 alongside USB 3.2 Gen 1 data at up to 2.5Gbps over a single CAT6a cable run. At the display end, the paired Boardroom Buddy HDMI RX connects to the display and provides USB-A and USB-C ports for room peripherals — returning USB data back to the presenter's device without a second cable. The transmitter passes the full signal chain transparently: HDCP 2.3, resolutions from 480i to 5120×2160, HDR10+, Dolby Vision, 8/10/12-bit colour, and all audio formats including Dolby Atmos and DTS-HD. A 3.5mm analogue audio output at the transmitter de-embeds LPCM 2CH for local monitoring, RS-232 integrates with AV control, and 24V PoC on the RJ45 powers the receiver over the CAT cable.

Key Features

  • HDMI 2.0b Input: Full HDMI 2.0b compliance passes all resolutions, colour formats, and audio types including Dolby Atmos and DTS:X
  • 4K60 4:4:4 Uncompressed: 4K60 with full 4:4:4 chroma sampling — no colour subsampling artefacts at the display end
  • USB 3.2 Gen 1 at 2.5Gbps: USB 3.2 Gen 1 data at up to 2.5Gbps over the same CAT cable — connects room webcams, speakerphones, and USB hubs back to the presenter device
  • HDMI Loop-Out: 1× HDMI loop-out at the transmitter for local display connection or confidence monitoring without signal interruption
  • HDR10+, Dolby Vision, HLG: Full HDR format support including HDR10, HDR10+, Dolby Vision, and HLG for premium display environments
  • 8/10/12-Bit Colour Depth: Full colour depth including 10-bit and 12-bit for accurate professional display calibration
  • 24V Power over Cable: 24V PoC on the RJ45 output powers the paired receiver over the CAT cable — eliminates a second power supply at the display end
  • 3.5mm Audio De-Embedding: LPCM 2CH audio de-embedded to 3.5mm analogue jack — feeds local speakers or audio interfaces at the transmitter end
  • RS-232 Control: 3-pin 3.5mm phoenix RS-232 port for integration with Crestron, AMX, Extron, and other AV control systems
  • Dimensions: 118 × 111 × 25.5mm, 378g: Compact flat form sits under the table or behind a display bracket — 378g, metal Turtle Aqua enclosure

Specifications

USB Protocol USB 3.2 Gen 1 — up to 2.5Gbps
HDCP HDCP 2.3 and HDCP 1.x
Video Bandwidth 18Gbps
Maximum Resolution Up to 5120×2160@60Hz
4K 3840×2160 and 4096×2160 up to 60Hz
HDR HDR, HDR10, HDR10+, Dolby Vision, HLG
Colour Depth 8/10/12-bit
Colour Space RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0
Transmission Distance Up to 40m / 130ft for 5K@30Hz; 35m / 115ft for 5K@60Hz via CAT6a
Audio LPCM, Dolby TrueHD, Dolby Atmos, DTS-HD Master Audio — de-embedded to 3.5mm
Audio Output Level Max 2.2dBu (1Vrms)
Audio Dynamic Range >90dB @ 0dBu, 1kHz A-weighted
Audio THD+N <0.007% @ 2.2dBu, 1kHz
ESD Protection IEC 61000-4-2: ±8kV air-gap, ±4kV contact discharge
Housing Metal enclosure, Turtle Aqua
Dimensions 118 × 111 × 25.5mm
Operating Temperature 0°C to 40°C
Operating Humidity 20% to 80% RH, non-condensing
HDMI Standard HDMI 2.0b
Input 1× HDMI type A 19-pin female; 1× USB-B upstream 9-pin female
Output 1× HDMI Loop Out type A 19-pin female; 1× Audio Out 3.5mm jack; 1× AV-USB3 Out RJ45 (24V PoC)
Control RS-232 3-pin 3.5mm phoenix; USB-C service port
Weight 378g
Power Supply AC 100–240V; DC 24V/2A (CE/FCC/UL certified)
Power Consumption 4W max

Warranty

The Turtle AV Boardroom Buddy HDMI TX is backed by the 5-year manufacturer warranty, providing peace of mind for professional installations.

Application Examples

Boardroom HDMI Extension Extend a lectern or console HDMI source to the room display over CAT with simultaneous USB return for the room's conferencing camera and speakerphone
BYOD Huddle Spaces Deploy as the HDMI/USB connection point at huddle tables — one CAT cable to the display carries both video and the USB hub back to the presenter's laptop
Lecture Theatre AV Mount at the lectern to extend the presenter's HDMI output to the room projection system while returning USB to the presentation laptop
Fixed Boardroom Installations Permanent installation under the boardroom table — clean single-cable run carries 4K video and USB to the ceiling-mounted display or room processor