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MOTU 24I/O (PCIe) - 24 Input / 24 Output Hard Disc Recording System with PCIe Card for Mac and Windows

B&H # MA24IOPCIE Mfr # 8800
No Longer Available

The 24I/O (PCIe) from MOTU is a hard disc recording system which includes an interface with twenty-four, high quality 24-bit/96kHz analog inputs and outputs, in a cost effective single rack space package. The interface allows for recording to and from twenty-four simultaneous analog sources and also includes a PCIe card (PCI Express) along Audiodesk workstation software.

The front panel of the interface is essentially a dedicated meter bridge. Audio activity for every input and output is represented by a dedicated five-segment LED bar graph. The twenty-four analog inputs and outputs are on 1/4" TRS phone connectors operating at either -10dB or +4dB (balanced/unbalanced,) and the input level can be switched via software in banks of eight inputs. The 24I/O interface provides word clock sync on a single BNC connector that can be programmed for input or output via software.

The 24I/O uses the second generation AudioWire protocol, a high-bandwidth digital audio format capable of carrying up to twenty-four channels of 96kHz digital audio in and out of the computer at the same time. The included PCIe card features a powerful DSP chip dedicated to creating a custom tailored monitor mix of up to ninety-six channels of 96kHz audio. Because the mixing takes place on the card itself, instead of making the round trip from the PCI bus to the host processor, the system provides near-zero latency performance.

Expandable hard disc recording system
Up to four 24I/O units can be connected to a PCIe card for a total of 96 inputs and outputs
User can have as many simultaneous channels as the host software and computer allow
Compatible with all MOTU AudioWire interfaces
Includes ASIO drivers for Mac OS and Windows
Multi-channel WDM driver provides simultaneous inputs/outputs for all Windows audio applications that support standard WDM and multi-channel Wave drivers
Fully compatible with VST, MAS, Premiere, DirectX, and all other host-based native plug-in formats
Includes Audiodesk workstation software
Converters 24-bit
Sample Rates 44.1, 48, 88.2 and 96kHz
Analog In 24 x 1/4" TRS phone, balanced or unbalanced
Analog Outputs 24 x 1/4" TRS phone, balanced or unbalanced
Digital Input Connectors No
Digital Output Connectors No
MIDI In/Out No
Sync In/Out Word clock, ADAT sync
Headphone Output No
THD + N Not specified by manufacturer
Dynamic Range Not specified by manufacturer
Frequency Response Not specified by manufacturer
Minimum System Requirements PC:

Pentium III processor or faster
Windows 98SE/2000/Me/XP
64MB of RAM
Available PCIe slot,


G3 Power Mac or faster
OS 9, OS X
128MB of RAM
Available PCIe slot

MOTU 24I/O (PCIe) - 24 Input / 24 Output Hard Disc Recording System with PCIe Card for Mac and Windows
  • PCIe Host Card
  • 24I/O Audio Interface
  • AC Power Cable
  • AudioWire Cable
  • AudioDesk Software
  • Limited 2-Year Warranty

    by PowerReviews
    MOTU24I/O Recording System (PCIe)

    (based on 1 review)

    Ratings Distribution

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    • 1 Stars



    Reviewed by 1 customer

    Displaying review 1

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    (1 of 1 customers found this review helpful)


    Works right from the begining

    By Cantaloupe Island

    from Rancho Santa Fe, CA

    About Me Experienced

    Verified Buyer


    • Clear Sound
    • Compact
    • Easy To Use
    • Lightweight
    • Versatile


      Best Uses

      • Amateur Recording
      • Home Studio
      • Professional Recording

      Comments about MOTU 24I/O Recording System (PCIe):

      I have been using Digidesign 002 and M-Audio 2626 with ADAT 8 channels pres for field recordings. I recently needed 24 channels at 88.2/96 kHz sampling rate. I considered MOTU 24I/O and Protools HD as candidates. I chose MOTU because it is more compact in size and costs significantly less. 24I/O started working right at the begining with Adobe Audition 2 on a home built PC. 24I/O works as well as Protools HD, which is at my studio. Since I have been a Protools user, non Protools recording softwares are a little unfamiliar. But, this is a minor drawback, because the sound files are compatible.

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