I2C SPI USB CAN eSPI Cable Testing View All Videos Quick Start Guides Software Downloads App Notes White Papers User Manuals Knowledge Base Sales Support About Us
Products Blog Sales Support Contact Search

Beagle USB 480 Protocol Analyzer


Part Number: TP320510

Availability: In-Stock

Non-intrusive high-speed USB 2.0 bus monitor with real-time display, search, and filtering.

Receive 15% off any cable and 20% off any board with purchase of select devices. Discount applied at checkout.

The Beagle™ USB 480 Protocol Analyzer is a low cost, non-intrusive High-speed USB 2.0 bus monitor that includes real-time USB class-level decoding.

The Beagle USB 480 analyzer is capable of capturing and interactively displaying high-speed USB bus states and traffic in real time with timing at 16.7 ns resolution and comes complete with software and royalty-free API. Thanks to an on-board 64 MB buffer, sustained bursts of 480 Mbps traffic can be captured with no loss of data.

If you are still not sure which features are perfect for your application, please see our USB Product Comparison chart.

Detailed technical information about the Beagle USB 480 Protocol Analyzer can be found in the User Manual.

We also have a Quick Start Guide to help you get started.

  • Non-intrusively monitor High-speed USB 2.0 (up to 480 Mbps)
  • Real-time USB class-level decoding with the Data Center Software
  • Two capture modes: real-time and delayed-download
  • High-speed USB chirp detection
  • Robust automatic speed detection
  • Hardware-based packet suppression
  • Digital inputs and outputs for synchronizing with external logic
  • Detect suspend/resume events and unexpected signals
  • Free software and API available
  • Fully Windows, Linux, and Mac OS X compatible

Detailed technical information can be found in the datasheet.

What is Included
Real-time capture and delayed-download capture

The Beagle USB 480 Protocol Analyzer has two different capture modes: real-time capture and delayed-download capture. The real-time capture mode allows developers to see all the high-speed data over USB as it happens. As the data is streamed in real-time, the capture size is only limited by the amount of RAM available on the analysis computer.

The delayed-download capture can be very useful in certain situations, such as when the Beagle USB 480 Protocol Analyzer is on the same high-speed bus as the target device. In these configurations, the Beagle analyzer is able to consume minimal USB bandwidth so that it does not obscure problems that occur only when the target is operating at the full USB bandwidth.

USB Class-Level Decoding

Real-time USB class-level decoding in the Data Center Software is available with the Beagle USB 480 Protocol Analyzer

High-Speed USB Chirp Detection

The Beagle USB 480 Protocol Analyzer can capture and display the K and J chirp patterns used in high-speed speed negotiations.

Automatic Speed Detection

The Beagle USB 480 Protocol Analyzer is able to robustly and reliably detect the correct speed of the USB data it is monitoring.

Hardware-based packet suppression

A hardware input filter is available to suppress packets in order to reduce the amount of data captured. The filter can remove empty packet pairs such as IN/NAK and PING/NAK pairs.

Digital I/O for synchronizing

To assist in identifying problems, the Beagle USB 480 Protocol Analyzer provides four digital inputs that allow users to capture additional hardware events in-line with the captured USB data from the target device.

Four digital outputs are available to provide for synchronization of the Beagle analyzer with scopes and logic analyzers. These digital outputs are able to match patterns in the captured data as well as idle bus states.

Detect Bus Events and Unexpected Signals

The Beagle USB 480 Protocol Analyzer can intelligently detect suspend and resume events as well as unexpected signals on the bus.

Packet-Level Timing

Get packet-level timing with 16.67 ns resolution.

Low Cost

The Beagle USB 480 Protocol Analyzer comes complete with software. Additional discounts are available for larger volumes.

The low cost makes it affordable for a company to provide every developer with their own analyzer. The benefits of every developer having their own analyzer are:

  • Less time wasted because developers do not have to share analyzers or go to the lab to debug simple problems.
  • Less wasted time means higher productivity because developers can identify and fix problems quickly and easily with less down-time.
  • Higher productivity means shorter development cycles. Projects get done on time and on budget.

By saving a day of engineering time, the Beagle USB 480 analyzer will have paid for itself.


The Beagle monitor is completely field-upgradable via USB. Total Phase is committed to improving the Beagle USB analyzer and making these improvements available to our customers.

You will never have to worry about being out of step with the latest software features. Software and firmware upgrades are always freely available in the Downloads section of this website.

General Requirements
Available Software  Required Software
TP201110: Data Center Software TP207010: USB Drivers - Windows   
TP202110: Beagle LabVIEW Driver    TP207210: USB Drivers - Linux
TP200210: Beagle Software API  Mac OS X (no drivers required)



PC Requirements & Supported Operating Systems (32-bit and 64-bit)
•    Windows: 7, 8, 8.1, 10
•    Linux: Red Hat, SuSE, Ubuntu, Fedora
•    Mac OS X: 10.7-10.14

Minimum Hardware requirements
•    Intel or AMD processor operating at 2 gigahertz (GHz) or faster
•    1 gigabyte (GB) physical RAM (32-bit) or 2 GB RAM (64-bit)
•    2 GB or more available hard disk space
•    High-speed USB port
•    VGA capable of 1024x768 or higher screen resolution
•    Internet access is helpful

Beagle Protocol Analyzer User Manual
Beagle USB 480 Protocol Analyzer Quick Start Guide

Related Products


Beagle USB 480 Protocol Analyzer
The analyzer itself works great, it captures all traffic in real time and it is very easy to connect it. However, the Data Center Software for PC does have issues which slowed us down considerably because we were not aware of them. It sometimes does not order the USB packets correctly, showing some packets that were transmitted later above the packets which were transmitted earlier, instead the other way around. So if the sequence of packets is, for example: IN(NAK), OUT, SOF, IN, the software would show OUT, SOF, IN(NAK), IN, which is not the expected behavior. It took us a whole day of thinkering why the packets were being sent that way before we figured out the it was just the software showing them incorrectly. The absolute timings are correct though. We don't know if this is a known problem, but we have a proof that it can happen on Data Center v7.01.
Used for hobby.
Easy to use.
Beagle 480
It's a good product. It would be difficult to get my job done without one.
Bertrand T.
Easy first-time setup, data center
Easy first-time setup, data center software has good GUI.
Daniel L.
Super easy to use
Hardware and software work out of the box with no fiddling around. Very happy with it.
beagle 480 usb sniffer
Been using them for years. They work great.
Tomasz C.
Gabriel F.
Amazing tool and student friendly company
I recently purchased the Beagle USB 480 for some embedded research that requires some advanced features such as high-speed USB monitoring combined with hardware I/Os for triggering other test equipment. On the HW side I am very happy with speed and resolution of the Beagle 480. I have found the SW very intuitive and easy to use and I am constantly discovering new features. Finally, I would like to mention the great support I received from TotalPhase previous to purchasing the device. I requested a quote and inquired about academic pricing and received an immediate response (from great sales agent Karen). As a grad student on a tight budget I really appreciate a company like this. I highly recommend the Beagle 480 and TotalPhase. Thanks, Gabriel
Gerardo V.
Amazing: I had an older C# program for the SPI-Beagle, just changed a few lines and it worked for the USB-Beagle. Same API, same programming interface, same concept behind. Great!
Phillip M.
Nothing short of epic...
This little but amazingly powerful device has saved my technology startup. I had such a hard time finding a contract firmware developer with experience in USB that I had to become my own. This tool has proven itself priceless when it comes to debugging and improving our company's prototype. We are now back on schedule thanks to Total Phase!
Sergey D.
It is sad that you confined to send to Russia packages that cost more than $270.
Dalibor S.
A very useful tool
Money well spent
Erik J.
Does what it should
Needed to debug an embedded full speed USB connection (no USB cables, devices are both on board.) Was able to cut a USB cable in half and solder wires to the signals and plug the other end into the Beagle. Worked like a charm. At full speed, wires didn't need to be too short, making it easier to solder. Software is all right, but had to read the manual to really find everything I wanted. Total Phase customer support is excellent.
Seunghwan L.
it arrived very soon.
it arrived very soon.