• • • Discontinued • • •

A new version of this product is available as the AT-UHD-PRO3-44M.

Model Number: AT-PRO3HD44M

  • Power Over Category Cable
  • Digital Audio Loop-Out
  • Complete Control
  • EDID Management
  • Additional Features

NOTE: The AT-PRO3HD44M is discontinued. The AT-UHD-PRO3-44M is the new version of this product and is part of the UHD-PRO3 Series of HDMI to HDBaseT matrix switchers.

4×4 HDMI to HDBaseT Matrix Switcher

4x4 HDMI to HDBaseT Matrix Switcher

The Atlona AT-PRO3HD44M is a 4×4 HDMI to HDBaseT Matrix Switcher that routes and extends HDMI sources up to 230ft (70m) at 1080p or 1920×1200.  It allows for effortless control of up to 8 devices through IR remote control, RS-232, 3rd party control processor, and the front panel. With a built in loop out S/PDIF port, the matrix can send de-embedded audio to an AVR or Distribution Amp. The matrix supports all Dolby and DTS formats over HDMI.

PoCc Receivers are not included with the AT-PRO3HD44M.


  • Extend AV signals up to 230ft (70m).  HDBaseT extends IR, RS-232, video up to 1080p or 1920×1200 with Dolby® and DTS multi-channel audio signals over a single category cable.

Power Over Category Cable

  • The PRO3HD44M supports Power over Category cable (PoCc) to send power to all receivers.

Digital Audio Loop-Out

  • With a built in source S/PDIF loop out send your audio to an AVR or Amplifier for easy audio distribution. Compatible with PCM 2Channel, Dolby 2.0, Dolby Digital 5.1, and DTS 5.1.

Complete Control

  • Easily control the matrix via TCP/IP, RS-232, and GUI. Works with most major control systems. Bidirectional IR allows control of display and source through the same interface.
  • SDDP enabled for easy set up and compatibility with 3rd party control systems

EDID Management

  • Ensure that even the most difficult display can receive audio and video with four programmable EDID memory presets loadable to any source connected to the matrix.

Additional Features

  • Supports pass through of all 3D formats
  • Locking HDMI port
  • Field serviceable firmware port
  • Includes dual purpose rack mount ears, IR remote


Atlona Academy – EDID Management


Video 480i, 480p, 576i, 576p, 720p@50/60Hz, 1080i@50/60Hz, 1080p@24/50/60Hz
VESA 640×480, 800×600, 1024×768, 1280×1024, 1360×768, 1600×1200, 1920×1200
Colorspace RGB, YCbCr 4:4:4, YCbCr 4:2:2 (8-bit only), xvYCC
Color depth 8-bit, 10-bit, 12-bit
Formats PCM 2Ch, LPCM 5.1, LPCM 7.1, Dolby Digital, DTS 5.1, Dolby Digital+, Dolby TrueHD, DTS-HD Master Audio
Sample Rate 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
HDMI up to 15 meters (@1080p 8bit) up to 50 feet
CAT5e/6 up to 60 meters (@1080p 8bit) up to 197 feet
CAT6a/7 up to 70 meters (@1080p 8bit) up to 230 feet
Bandwidth 6.75 Gbps
HDCP Compliant
Fan Noise
Operating 0°C to 40°C 32°F to 104°F
Storage -20°C to 60°C -4°F to 140°F
Humidity 20 to 90% non-condensing
Consumption 54W
Idle Consumption 1.2W
Supply Input: AC100~240V 50/60Hz
Output: DC 24V/3A
H x W x D 44 x 433.8 x 255 (mm) 1.73 x 17.08 x 10.04 (inch)
W/feet 55.15 x 433.8 x 255 (mm) 2.17 x 17.08 x 10.04 (inch)
Device 3kg 6.61lbs
Shipping 5.08kg 11.21lbs
Power Supply CE, FCC, cULus


Features 3D, 1080p, 1920×1200, Dolby TrueHD, DTS-HD Master Audio
HDBaseT PoCc, RS-232, IR, 3D, 1080p, 1920×1200, Dolby TrueHD, DTS-HD Master Audio
Compatibility Mono to mono IR cables or Atlona IR receiver
Compatibility Atlona IR emitter only
Audio Formats PCM 2Ch, Dolby Digital, DTS 5.1
Use Firmware updating

Package Contents

QTY Item
1 24V DC power supply adaptor
1 IR receiver module
5 IR emitter
1 Remote control
1 User manual


pdf-icon DataSheet
pdf-icon Manual
pdf-icon Tech Tips
word-doc-icon IR Codes
pdf-icon SellSheet

Diagrams, Drawings & CAD Files

cad-icon-(1) CAD Files


pdf-icon FAQ


Case Study Missouri Athletic Club Gets Modern Twist

Declarations Of Conformity

pdf-icon Declarations Of Conformity

Related Products

AT-UHD-SYNC Atlona 4K HDMI Emulator/Tester
AT-HD-M2C Atlona HDMI Multichannel to 2CH Converter
AT-HDRX-IR Atlona HDBaseT Receiver over a Single Category Cable w/IR

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AT-PRO3HD44M Firmware

Download Firmware version 2.0.05 Download Firmware version 2.0.06
File Size 208 KB File Size 208 KB
Date 10.18.13 Date 02.26.14
Update 2.0.05 Includes

      • Fixed double IP feedback issue

      • New WebGUI for setup and control

      • DHCP default on

      • SDDP support for Control4 integration

Update 2.0.06 Includes

      • Use with non-Ethernet units

Click to view Full Release Notes

FPGA Firmware

Download Firmware version 1.1.2
File Size 199 KB
Date 04.23.15
Update 1.1.2 Includes

      • RS-232 zone feedback fix

AMX RS-232 and TCP/IP Control
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Date 03.07.13

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Click below for Support details