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Io 4K Plus
Io 4K Plus is the cutting edge of capture and output hardware available over Thunderbolt 3,
offering a full set of professional video and audio connectivity with support for the latest
4K/UltraHD devices, High Frame Rate (HFR), High Dynamic Range (HDR) and deep color workflows.
The power of Thunderbolt 3 enables Io 4K Plus to handle a wide range of formats from SD to HD,
UltraHD and full 4K with frame rates up to 60p over both 12G-SDI and HDMI 2.0 with single cable
simplicity , plus HDR 10 and HLG support over HDMI for emerging HDR workflows.
https://www.aja.com/products/io-4k-plus
$2495 US MSRP
Io 4K Plus - Spec Sheet
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Video Formats
(4K) 4096 x 2160p 23.98, 24, 25, 29.97, 30, 47.95, 48, 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, 47.95, 48, 50, 59.94, 60
(2K) 2048 x 1080PsF 23.98, 24, 25
(HD) 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
(HD) 1080PsF 23.98, 24, 25, 29.97, 30
(HD) 1080i 50, 59.94, 60
(HD) 720p 50, 59.94, 60
(SD) 625i 50
(SD) 525i 59.94
Note: High Frame Rate capabilities are dependent on host system
attributes. Not all systems and configurations will support all frame rates.
Video Inputs
12G-SDI*, SMPTE-2082, 12-bit**, 10-bit and 8-bit
6G-SDI*, SMPTE-2081, 10-bit and 8-bit
3G-SDI, SMPTE-259/292/296/424/425, 12-bit*, 10-bit and 8-bit
4K/UltraHD 4:4:4 (4x BNC)
1.5G-SDI, SMPTE 372M, Dual Link HD 4:4:4 (2x BNC), 12-bit**, 10-bit and
8-bit
1.5G-SDI, SMPTE 292M, Single Link 4:2:2 (1x BNC), 10-bit and 8-bit
HDMI v2.0
30/36-bits/pixel, RGB or YUV, 6 Gbps per color component
4K, UltraHD, 2K, HD and SD with HFR support up to 60p (4:2:2), 10-bit
and 8-bit
*SDI connections are bidirectional. For 2K/HD, capture and monitoring can
be simultaneous. For 4K/UltraHD with 12G-SDI, capture and monitoring can
also be simultaneous. For 4K/UltraHD with 3G-SDI, all four connections
must be used for either Input or Output. Additionally, 12G-SDI, 6G-SDI
configured inputs support UltraHD / 4K only.
**Bit depth support is application dependent. Check with your software
manufacturer for compatibility.
16-Channel, 24 and 16-bit SDI embedded audio, 48 kHz sample rate,
synchronous
8-Channel, 24 and 16-bit HDMI embedded audio, 48 kHz sample rate,
synchronous
Audio Inputs Analog
8-Channel, 24 and 16-bit D/A analog audio, 48 kHz sample rate,
balanced, using industry standard 8x XLR on DB-25 breakout cable
(cable not included)
+24 dBu full scale digital (0 dBFS)
+/- 0.2 dB 20 to 20 kHz frequency response
Input supported across Ch 1-8, Ch 1-4, or Ch 5-8 depending on
configuration chosen
Audio Outputs Digital
16-Channel, 24-bit SDI embedded audio, 48 kHz sample rate,
synchronous
8-Channel, 24-bit HDMI embedded audio, 48 kHz sample rate,
synchronous
Audio Outputs Analog
8-Channel, 24-bit D/A analog audio, 48 kHz sample rate, balanced,
using industry standard 8x XLR on DB-25 breakout cable (cable not
included)
+24 dBu full scale digital (0 dBFS)
+/- 0.2 dB 20 to 20 kHz frequency response
Output supported across Ch 1-8, Ch 1-4, or Ch 5-8 depending on
configuration chosen
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 4K/UltraHD
Video Outputs
12G-SDI*, SMPTE-2082, 12-bit**, 10-bit and 8-bit
6G-SDI*, SMPTE-2081, 10-bit and 8-bit
3G-SDI, SMPTE-259/292/296/424, 12-bit*, 10-bit and 8-bit
4K/UltraHD 4:4:4 (4x BNC)
1.5G-SDI, SMPTE 372M, Dual Link HD 4:4:4 (2x BNC), 12-bit**, 10-bit and
8-bit
1.5G-SDI, SMPTE 292M, Single Link 4:2:2 (1x BNC), 10-bit and 8-bit
HDMI v2.0
30/36 bits/pixel, RGB or YUV, 6 Gbps per color component
4K, UltraHD, 2K, HD and SD with HFR support up to 60p (4:2:2), 10-bit
and 8-bit
HDR 10 Support - HDR Infoframe metadata, compatible with HDMI
2.0a/CTA-861.3
HLG Support - compatible with HDMI 2.0b/CTA-861-G***
*SDI connections are bidirectional. For 2K/HD, capture and monitoring can
be simultaneous. For 4K/UltraHD with 12G-SDI, capture and monitoring can
also be simultaneous. For 4K/UltraHD with 3G-SDI, all four connections
must be used for either Input or Output. Additionally, 12G-SDI, 6G-SDI
configured outputs support UltraHD / 4K only.
**Bit depth support is application dependent. Check with your software
manufacturer for compatibility.
***HLG support is application dependent. Check with your software
manufacturer for compatibility.
Audio Inputs Digital
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) or HD Tri-Level
Sync (1V)
Reference input is terminated into 75 ohms when Genlock is set to Ref
In
Electrical Interface
Thunderbolt 3 (2x)
Machine Control
RS-422, Sony 9-pin protocol
9-pin D-connector pinout is as follows:
Shell GND
1 GND
2 RX-
3 TX+
Io 4K Plus - Spec Sheet
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4 GND
5 No Connection
6 GND
7 RX+
8 TX-
9 GND
Shell GND
Size (w x d x h)
8.74” x 8.11” x 1.65” (222.0 x 206.0 x 41.9 mm)
Weight
3.4 lbs (1.6 kg)
Power (device only)
10-20V, 30W typical, 36W max, 70W max with USB-C power delivery to
external devices
Environment
Safe Operating Temperature Range: 0 to 40 C (32 to 104 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)
Io 4K Plus - Spec Sheet
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