IOI DVR Express Core 2

The Core2 DVR is the ultimate compact digital video recorder. The DVR Express Core 2 can record at data rates up to 1620 MB/s.

Camera Link, CoaXPress and SDI versions available.


IOI DVR Express Core 2

With image sensor resolutions and frame rates always advancing, digital video data rates continue to climb. The original DVR Express® Core was able to record video at data rates up to 680 MB/s, which was adequate for many but not all situations. With the new design advancements and ultra-fast solid state VidIO Drive Modules, the DVR Express Core 2 can record at data rates up to 1620 MB/s – more than twice the speed of its predecessor!


The DVR Express Core 2 can record from up to four cameras simultaneously, simplifying multi-camera recording applications such as motion capture, stereoscopic imaging, volumetric particle tracking and more. As well, built-in synchronization tools allow accurate alignment of each camera’s exposure, provided the cameras support such features. External frame synchronization signals can be connected to the Auxiliary I/O port of the Core 2, or signals can be generated internally using the Signal Generator tools. Timestamps can be applied to the images based on the exposure trigger point or any time thereafter.


Traditional high speed video cameras rely on internal memory for storage, usually with enough capacity for a few seconds or minutes of video at most. The DVR Express Core 2 can be configured with up to 15 TB of removable solid state storage, meaning tens of minutes if not hours of video can be recorded, without the need to download to disk after recording! Long-duration video recording allows for greater analysis of processes over time, a feature not possible with other camera systems. Also, if only short clips are needed, the high storage capacity allows many more experiments to be captured with no transfer downtime in between.


Video compression has its place with some applications, but when a critical experiment is underway and the best possible video quality is required, experts turn to the DVR Express Core 2 series. These powerful recorders store high-bandwidth uncompressed video data from up to four cameras, preserving all the detail and dynamic range of the original digital video data. This allows frame-by-frame review of recordings as though each frame is its own still picture. After the recording is complete, clips can be exported into formats that do support compression, such as AVI or JPG, but the original data is always preserved.


Like the first generation Core DVRs, the DVR Express Core 2 is also a PC peripheral, intended to be connected at all times to a PC system. The PC interface allows for DVR configuration, operation, live video display and file transfers after recordings are completed. The Core 2 features a 6Gbps eSATA port, twice as fast as its predecessor, plus a USB3.0-to-eSATA adapter cable is included in case no eSATA ports are available. Multi-port USB 3.0 add-on cards are available for PCs, but for situations with many (5 or more) DVRs involved, multi-port 6Gbps eSATA cards are recommended (cards are available with 8 or 16 ports per card).


The DVR Express Core 2 incorporates a removable cartridge (Drive Shuttle) holding up to four solid-state drives built with NAND flash technology. Using solid-state media ensures reliable continuous recording with no dropped frames, plus tolerance to shock and vibration. Recording directly to non-volatile storage protects data in the event of a power loss, whereas a RAM-based video recorder would lose the data immediately. Even if no power loss occurs, with non-volatile media there is no download process after each recording finishes (to “save” the recording file) – all frames are already saved the moment they reach the DVR.


Easy-to-use CoreView™ software is included with each DVR Express Core 2, allowing configuration and operation of one or more DVRs. Each camera is shown with an independent display window, and multiple monitors can be used to show each camera full-screen on separate displays. After recording, files can be played back or reviewed frame-by-frame, then exported into commonly-supported image or video file formats including BMP, JPG, TIF, AVI, MOV, RAW and more. A backup feature also allows recordings of one or more camera from one or more DVRs to be saved together in a local file for later review.


All recorded video frames are assigned a digital timestamp which is stored along with each frame’s video data in the recording file. Accurate timestamps allow correlation between recorded video frames and other timestamped data sources. The precision of each timestamp is 100 nanoseconds with a time accuracy of +/- 50 microseconds or better, depending on the master time reference source. This could be the Control PC’s clock or one of many supported IRIG-A/B or GPS receivers. With an IRIG-A/B or GPS receiver, the DVR’s time is updated once per second with a hardware synchronization loop, eliminating any drift over time.



DVR Express Core 2 – Camera Link

  • Supports up to (4) cameras with Camera Link Base, Medium, Full or Full 80-bit output formats and clock rates up to 85MHz
  • Area and Line Scan camera types supported
  • Power over Camera Link (PoCL) provided on all ports
  • CORE2CLPLUS model has bidirectional ports allowing pass-through repeat features as well as output of recorded video over Camera Link, simulating up to (2) CL-Base cameras at once or (1) CL-Full camera

Supported Camera Link Connections




Base In/Out

Med/Full In/Out












DVR Express Core 2 – CoaXPress

  • Supports up to (4) cameras with CoaXPress single-link, dual-link or quad-link interfaces with link rates up to CXP-6
  • Area and Line Scan camera types supported
  • Power over CoaXPress (PoCXP) provided on all ports when 24V AC adapter used (P/N COREPWRCXPxx)
  • CORE2CXPLUS model supports four links at up to CXP-6 speed but the total readout rate must be reduced –contact IO Industries for more details and configuration suggestions.

Supported CoaXPress Connections






4 (up to CXP-3)

2 (up to CXP-3)



4 (up to CXP-6)

2 (up to CXP-6)

1 (up to CXP-6)


DVR Express Core 2 – SDI

  • Records up to (4) single-link SDI video sources simultaneously
  • Flexible support for SD-SDI, HD-SDI or 3G-SDI connections
  • Supported formats include SD, HD, 2K, UHD and 4K up to 60p
  • Records SMPTE metadata (HANC/VANC) from each SDI link including embedded audio channels or KLV data packets
  • Bidirectional ports allow dual-input/dual-output mode for (2) single-link cameras or (1) dual-link camera

Supported SDI Connections




Single-Link In/Out

Dual-Link In/Out









Common Features

Supported Video Data Rate:

  • Up to 1620 MB/s

Video Storage Media:

  • Removable Drive Shuttle with up to (4)

IO Industries VidIO Drive Modules

(solid state media)

  • Up to 15TB capacity

Connection to Control Computer:

  • 6Gb/s eSATA (USB 3.0 adapter included)
  • Required for configuration and operation
  • Allows live video display, post-recording playback and video export to local storage

Recording Format:

  • Uncompressed (IO Industries file system)
  • Images or clips can be exported to common file types using control software (AVI, BMP, JPG, TIF, RAW, etc.), archived to backup format, or accessed via SDK

Control Software:

  • CoreView or Streams 7 (SDKs available)

System Requirements:

  • Windows 7/8.1/10 32/64-bit, Ubuntu 16.04 LTS 32/64-bit
  • Available eSATA or USB 3.0 port

Time Stamping:

  • High-precision time stamp per frame
  • Time stamps can be synchronized to external IRIG or GPS time code receiver

Multi-DVR Synchronization:

  • Master/Slave configuration allows time reference distribution and synchronizes recording start/stop across multiple DVRs

Auxiliary Signal Input/Output:

  • (6) Bi-directional TTL I/O
  • (2) LVDS inputs and (2) LVDS outputs
  • (1) Remote On/Off