Works out of the box with E-Prime, SuperLab, Presentation, Inquisit, PsychoPy or any other software that can read and write to a standard serial port to send simple TTL event marks/TTL triggers.

*Remember although our USB TTL Modules hardware is millisecond accurate and helps you produce simple event marks in your experiments it cannot automatically correct for any mistimings that are inherent within the experiment generator or other hardware you use. In short it does not guarantee that your event marks or triggers are accurate as your experiment generator is responsible to all timings and all it provides is a simple USB-TTL interface between your computer and third party equipment.

For example, if your experiment generator presents an image and does not produce an event mark in a timely fashion, your OS intervenes, or an anti-virus check runs, your event marks will remain inaccurate regardless of the quality of the event marking device.
What | Why | How

For self-validation you should independently check the accuracy and consistency of your experiment generators presentation and response event marking with a Black Box ToolKit v3 together with a BBTK USB TTL module.

To independently TTL event mark stimuli and responses with sub-millisecond accuracy you should use our mBBTK v2. The unique mBBTK v2 takes over all timing and event marking duties from any experiment generator so you can be 100% sure of your presentation, synchronization, response timings and event marks.

Request a quote

The first step in the ordering process is to request a formal quotation for the products you have in mind. To request a quotation, or to place an order for any of our products feel free to email us on: Alternatively, why not give us a call.

Email us for a written quote.

If you wish to discuss your requirements beforehand we are here to help!

USB TTL event marking module pricing

Designed as a parallel port replacement for simple TTL event marking/TTL triggers. Plug in to a USB port on your PC and our USB TTL Module will appear as a Virtual Com Port (VCP).

All USB TTL modules ship with a USB host lead. An optional breakout board enables you to wire your own cables before making them permanent.


Accessories & replacement modules

25-way TTL event marking/TTLtrigger breakout board

A breakout board lets you quickly and easily connect individual TTL lines before making a permanent connection.


25-way TTL breakout board lead

Used for connecting the breakout board to the front of the USB TTL Module (included with above breakout board).


25-way TTL output diagnostic board

The TTL output diagnostic boards lets you check what the hex output of the USB TTL Module is set to. Also lets you scroll back through outputs easily using dedicated buttons. Lets you be sure of your outputs whilst developing.


Gender changer

Used for connecting the 25-way TTL breakout board lead to external devices, e.g. BIOPACs etc.


USB host lead

Used for connecting the USB TTL Module to the Host PC.


USB-C host lead (C to B)

Used for connecting the USB TTL Module to the Host PC, laptop, tablet or phone.


Unless otherwise labelled, all products offered for sale by The Black Box ToolKit Ltd are for academic study and/or research use only.

All prices are pegged to Pounds Sterling (GBP) and are exclusive of VAT if applicable. Quotations are valid for 30 days.
Currency exchange fluctuations of more than 5% prior to placing a formal order means quotes may be subject to revision.
Depending on your order, there may be additional import duties which will be passed on to you.
All consignments are shipped under Incoterms 2020 DAP Delivered At Place (named place of destination).
Worldwide Shipping and Handling which will be charged at cost. Shipping insurance is mandatory and will be charged at cost.
Delivery dates are estimated to the best of our knowledge at time of quotation and will be confirmed upon receipt of order.
We will require an official Purchase Order and EU VAT No (if applicable) prior to shipping. Payment details will be provided with invoice. *E&OE.

Who are we

Founded in 2003 by a team of psychologists, software experts and electronic engineers we are dedicated to improving the millisecond timing accuracy and experimental rigor of researchers in the behavioral and brain sciences.

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