AJA IO-EXPRESS-PCIE Specifications

Io Express

Io Express delivers compact, powerful I/O for PC or Mac in the field, in the studio, or wherever your
work takes you with 3G-SDI and HDMI I/O and Component Video Out.

https://www.aja.com/products/io-express

$995 US MSRP

Io Express - Spec Sheet

09/11/2019 Page 1 of 2

Video Formats

Machine Control

(HD) 1080i 50, 59.94, 60
(HD) 1080PsF 23.98, 24
(HD) 1080p 23.98, 24, 25, 29.97, 30
(HD) 720p 50, 59.94, 60
(SD) 625i 50
(SD) 525i 59.94

Video Input

SD/HD SDI, SMPTE-259/292/296/424, 8 or 10-bit
Single Link 4:2:2 (1x BNC)
HDMI v1.3

Video Output Digital

SD/HD SDI, SMPTE-259/292/296/424, 8 or 10-bit
Single Link 4:2:2 (1x BNC)
HDMI v1.3

Video Output Analog

Composite/S-Video (Y/C) (1x BNC)
NTSC, NTSCJ, PAL
Component (3x BNC)
HD: YPbPr, RGB
SD: YPbPr, RGB (component mode)
SMPTE/EBU N10, Betacam 525 line, Betacam 525J, RGB
12-bit D/A, 8x oversampling
+/- .2 dB to 5.0 mHz Y frequency response
+/- .2 dB to 1 mHz C frequency response
.5% 2T pulse response
<1% Diff Phase
<1% Diff Gain
<1 ns Y/C delay inequity

RS-422, Sony 9-pin protocol
9-pin D-connector pinout is as follows:

1 GND

2 RX-

3 TX+

4 GND

5 No Connection

6 GND

7 RX+

8 TX-

9 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

1.5 lbs (0.7 kg)

Power

12-18V, 11-13W

Environment

Safe Operating Temperature: 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)

Audio Input Digital

8-Channel, 16 and 24-bit SMPTE-259 SDI embedded audio, 48 kHz
sample rate, synchronous
8-Channel, 16 and 24-bit HDMI embedded audio, 48 kHz sample rate,
synchronous

Audio Output Digital

8-Channel, 16 and 24-bit SMPTE-259 SDI embedded audio, 48 kHz
sample rate, synchronous
8-Channel, 16 and 24-bit HDMI embedded audio, 48 kHz sample rate,
synchronous

Audio Output Analog

2-Channel 16 and 24-bit unbalanced audio (via RCA jack)

Reference Input or LTC Input

1x BNC assignable to Reference video or LTC input

Reference

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

Electrical Interface

PCI Express X1

Io Express - Spec Sheet

09/11/2019 Page 2 of 2