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  • mPCIe (USB) to Dual CAN2.0A/B/FD Ports with Extended CAN232 Interface
  • Complies with CAN Specifications 2.0 A/B and FD
  • Time stamp resolution at 1μS or 1mS
  • CAN FD Data Bitrates up to 10MBit/S
  • CAN Bitrates up to 1MB/S
  • CAN Bus Connection via Industry-Standard D-Sub Mini 9-pin Male (×2) via optional cable accessory
  • Microchip MCP2558FD CAN FD Transceiver
  • CAN Termination as factory option
  • Error Reporting for CAN Messages
  • Voltage Supplied via mPCIe Bus
  • RoHS and Industrial Temperature (-40°C TO 85°C) Both Standard
  • ISOLATED Version (mPCIe-UCAN2-ISO) As above, plus:
    • Using the Latest Isolation Technology with 5000V Isolators
    • Per IPC-2221B: 1500V Isolation I/O-to-Computer on all Signals
Last updated on November 2, 2023, 6:30 pm


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The mPCIe-UCAN2 card features two CAN ports that instantly install in most any operating system as standard COM/ttyS devices.
Each port supports CAN2.0 A/B and FD operations including data rates up to 10Mbps and timestamps with 1μs (or 1ms) resolution.
These CAN ports can be controlled using a simple ASCII command/response interface using a superset of the popular CAN232 standard (extended
to support CAN FD requirements)
The Factory “-ISO” option adds Tru-ISO™ isolation both port-to-port and port-to-PC.

Special Order

Please contact ACCES with your precise requirement. Example special orders include conformal coating, custom software or product labeling, and more. We will work with you to provide exactly what is required.

Accessories and Connections

Available accessories include
CAB-mPCIe-CAN2 Two port DB9 male 9″ cable accessory kit
ADAP9-2-S02 DB-9 Screw Terminal Accessory with Jack Screws
mPCIe-HDW-KIT2 2mm mounting hardware kits
mPCIe-HDW-KIT2.5 2.5mm mounting hardware kits


Supported for use in most operating systems including Windows and Linux; embedded OS support includes DOS, XPe, WES7, WES8, IoT, VxWorks, and more.


Data Sheets



Drivers and Downloads

Full list of available Downloads: Software Packages, Drivers, Manuals, and other documents

Information about our Free Software packages:

ACCES is proud to provide a full suite of software support with every Data Acquisition product. We are committed to supporting the most popular operating systems and platforms for our customers. Currently we are actively supporting XP -> 10, both 32 & 64 bit, including “Server 2008,” “Embedded,” and “Compact” flavors for all plug-and-play products including PCI, PCI Express, USB, and more. Many products continue to ship with support for additional operating systems such as DOS, Windows 95, 98, Me, NT4, and 2000.


Among the software we deliver with our products are sample programs in a wide variety of programming languages. These samples are used to demonstrate the software interfaces to our products — and many can be used as-is in your production environments, or to test functionality of the devices out-of-the-box. We’re currently actively supporting sample programs in Microsoft Visual C#, Visual Basic, Delphi, and Visual C/C++, with many devices including samples in Borland C/C++ 3.1 for DOS. Additionally we provide National Instruments LabVIEW compatible DLLs and many demonstration VIs for our devices.


Drivers for various operating systems are also provided, including active support for Windows XP -> 10 — all in both 32-bit and 64-bit flavors, and including consumer, server, and embedded varieties — as well as the 2.6 and newer Linux kernels and recent OSX / macOS versions. Many products continue to ship with driver support for Windows 95, 98, Me, NT4, and Windows 2000, but support for these operating systems is considered deprecated.

Setup Programs and Utilites

Our Data Acquisition devices also include a graphical setup utility that walks you through the process of configuring any option jumpers or switches on the device, as well as explaining a little about the various connectors present.

Many devices also include utility programs – little tools to make your use of the device easier, such as EWriter, a program that allows you to read and write data in the user-accessible EEPROM locations on all our USB data acquisitition products; or WinRISC, a “Really Incredibly Simple Communications” terminal program that lets you get started instantly with serial devices.

“Register Level” Documentation

Besides all this software in all these languages and operating systems ACCES has a policy of open and transparent development: none of our lowest-level “register” interfaces are hidden from you — we document every register in every bus card, every command in every serial board, and every usb control transfer in every USB Data Acquisition board. These lowest-level interfaces allow you to develop for our products in ANY operating system or language, regardless of our actively supporting it or having a driver for it. We have customers actively developing in ADA, Android, Python, Java, MATLAB, Solaris, and more, just by referring to our complete low-level interface documentation! And we provide the full source code to all of our drivers, regardless of operating system, to give you an even bigger head start in your own development tasks.

No Fees or Royalties

All of this software is provided at no additional charge, and is licensed under any of a variety of flexible — and royalty free — options. Check out our software license explanation if you’d like more information.

non-plug-and-play driver install guide for Windows

Please refer to the Non-PnP Install Guide for instructions to get your PC/104 and ISA bus devices installed in modern Windows.

Custom Software

ACCES also offers Custom Software Services for our products. Our prices are unbelievably low, often as inexpensive as free! If you need something tweaked to support your needs, or an entire enterprise application developed from scratch, it is definitely worth your time to inquire with us, first.

Further information about available ACCES Software:

Redistributing Windows Drivers
A list of ACCES drivers and the files that compose them under different versions of Windows, so you can easily redistribute ACCES cards and drivers.

PC Interface

  • Type F1 “Full Length” V1.2, PCI Express Mini Card (USB signaling)

Communications Interface

  • Protocols: CAN2.0A, CAN2.0B, CAN2.0FD, 2×Ports provided


  • Tru-Iso
    • IPC-221B
    • Port-to-PC: 1500V peak (AC or DC)
    • Port-to-port: 500V peak (AC or DC)

Careful attention has been paid to isolation design, including extensive keep-out zones and hand-routed circuit paths, as well as component and material selection.


  • Operating Temperature:-40°C to +85°C
  • Storage Temperature:-65°C to +150°C
  • Humidity:5% to 95%, non-condensing
  • Power required:+3.3VDC @ 0.25W (mPCIe-UCAN2-ISO: +3.3VDC @ 0.5W)


mPCIe card characteristics

  • Weight:5.4 grams (mPCIe-UCAN2-ISO: 6.2 grams)
  • Size: length: 50.95mm (2.006″); width: 30.00mm (1.181″)
  • I/O connector:
    On-card: Molex 2023960307 3-pin Pico-Clasp
    Mating (On-cable): Molex 5013300300

Regulatory Compliance

  • This product is designed to be in full compliance with CE requirements.

OEM and volume pricing available, please call us.

ModelDescriptionPrice (USD)

Two port CANbus mPCIe card, with Isolation


Two port CANbus mPCIe card

CAB-mPCIe-CAN2 Two port DB9 male 9″ cable accessory kit $19
ADAP9-2-S02 Screw terminal adapter (single DB9 female to 9 screw terminals) with Jack Screws $40
mPCIe-HDW-KIT2 2mm mounting hardware kit $1
mPCIe-HDW-KIT2.5 2.5mm mounting hardware kit $1