AJA IO-4K I/O with Thunderbolt 2.0

The AJA Io 4K I/O for Thunderbolt 2 is a portable capture and output device that offers professional video and audio connectivity with support for 4K and UltraHD workflows. It handles a wide range of formats from SD to full 4K over both SDI and HDMI. Built around Thunderbolt 2 technology, the Io 4K allows even greater bandwidth between host computer systems and Thunderbolt devices. The dual Thunderbolt 2 ports allow you to daisy chain additional peripherals such as high resolution displays and high-capacity storage.

Featuring four 3G-SDI inputs and outputs, as well an HDMI 1.4 input and output, the Io 4K is capable of capturing and outputting 4K signals over quad link SDI or HDMI. It is also capable of handling UltraHD, 2K, HD, and SD resolutions. When working with 4K content, the Io 4K outputs an HD-SDI down-converted signal on a dedicated BNC connector. This HD signal can be used to output to HD recorders or monitors. Embedded 16-channel SDI and 8-channel HDMI audio are supported, as well as analog audio outputs via a standard DB-25 connection. Stereo monitoring is possible via two RCA outputs and a front panel headphone jack. A 4-pin XLR power input is available for powering the Io 4K with batteries or the included AC adapter.

• Supports 4K via HDMI & Quad Link SDI
• Simultaneous SDI and HDMI Outputs
• Dual Thunderbolt 2 Ports
• Real-Time 4K to HD Down-Conversion
• 10-bit 4:2:2 and 4:4:4 Support
• 16-Channel Embedded Audio on SDI
• 8-Channel Embedded Audio on HDMI
• DB-25 Analog Audio Output Connector
• RS-422 VTR Control, Reference, LTC Input
• Headphone Jack and Level Control

Video Formats 

• (4K) 4096 x 2160P 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 
• (UltraHD) 3840 x 2160P 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 
• (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 
• (2K) 2048 x 1080PsF 23.98, 24, 25 
• (HD) 1080i 50, 59.94, 60 
• (HD) 1080PsF 23.98, 24, 25, 29.97, 30
• (HD) 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 
• (HD) 720p 50, 59.94, 60
• (SD) 625i 50 
• (SD) 525i 59.94 

Note: High Frame Rate support is dependent on Thunderbolt speed. Not all systems will support all frame rates. Also HDMI I/O is limited to 4K/UltraHD p30 maximum.

Video Input Digital

3G-SDI, SMPTE 425

• RGB 4:4:4 12-bit*, YCbCr 4:2:2 10-bit

1.5G-SDI, SMPTE 292M

• Single Link HD-SDI YCbCr 4:2:2 10-bit
• Dual Link RGB 4:4:4 12-bit*, Dual Link YCbCr 4:2:2 10-bit

270 Mbps SDI, SMPTE 259M-C

• YCbCr 4:2:2 10-bit, 8-bit

*Bit depth support is application dependent. Check with your software manufacturer for compatibility.

Video Output Digital

3G-SDI, SMPTE 425

• RGB 4:4:4 12-bit*, YCbCr 4:2:2 10-bit
• 2K HSDL (High Speed Data Link) 4:4:4 (2x BNC)

1.5G-SDI, SMPTE 292M

• Single Link HD-SDI YCbCr 4:2:2 10-bit
• Dual Link RGB 4:4:4 12-bit*, Dual Link YCbCr 4:2:2 10-bit

270 Mbps SDI, SMPTE 259M-C

• YCbCr 4:2:2 10-bit, 8-bit

HDMI v1.4b

• 30/36-bits/pixel, RGB or YUV, 2.25 Gbps
• 2K, HD, and SD, UltraHD with HFR support up to 60p 4:2:0

*Bit depth support is application dependent. Check with your softwaremanufacturer for compatibility.

HDR

• SDI: VPID signaling for SDR/HDR Transfer Characteristics, Colorimetry and Luminance
• HDMI: HDR10 Support - HDR Infoframe metadata, compatible with HDMI 2.0a/CTA-861.3
• HDMI: HLG Support - compatible with HDMI 2.0b/CTA-861-G

Note: HDR support is application dependent. Check with your software manufacturer for compatibility.

Audio Inputs Digital

• 16-channel, 16 and 24-bit SDI embedded audio, 48 kHz sample rate, synchronous
• 8-channel, 16 and 24-bit HDMI embedded audio, 48 kHz sample rate, synchronous

Audio Outputs Digital

• 16-channel, 16 and 24-bit SDI embedded audio, 48 kHz sample rate, synchronous
• 8-channel, 16 and 24-bit HDMI embedded audio, 48 kHz sample rate, synchronous

Audio Outputs Analog

• 8-channel, 16 and 24-bit D/A analog audio, 48 kHz sample rate, balanced, using industry standard 8 x XLR on DB-25 breakout cable (Breakout cable not included)
• +24 dBu full scale digital (0 dBFS)
• +/- 0.2 dB 20 to 20 kHz frequency response

Downstream Keyer

• Supports graphics up to 2K/HD with alpha channel over video, matte or framebuffer, or framebuffer content over incoming video or matte

Down-Conversion

• Real time, dedicated 4K down-conversion output (1x BNC)
• 4K to 2K down-conversion
• UltraHD to HD down-conversion

Reference and LTC I/O

• 1x BNC LTC output
• 1x BNC assignable to Reference video or LTC input

Reference

• Analog Color Black (1V) or Composite Sync (2 or 4V)
• Nonterminating

Electrical Interface

• Thunderbolt 2 (2x)

Machine Control

• RS-422, Sony 9-pin protocol
• 9-pin D-connector pinout is as follows:
• 1: GND
• 2: RX3 TX+
• 4: GND
• 5: No Connection
• 6: GND
• 7: RX+
• 8: TX9 GND
• Shell: GND

Size (w x d x h)

• 8.74" x 7.09" x 1.65" (222.0 x 180.09 x 41.91 mm)

Weight

• 3.1 lbs (1.5 kg)

Power

• 10-20V, 23W typical, 28W max

Environment

• Safe Operating Temperature Range: 0 to 35 C (32 to 95 F)
• Safe Storage Temperature (Power OFF): -40 to 60 C (-40 to 140 F)
• Operating Relative Humidity: 10-90% noncondensing
• Operating Altitude: <3,000 meters (<10,000 feet)