If your question isn’t here, feel free to contact us or post on the forums.


Why should I use a true random number generator for my project?

Only true random number generators like the TL200 are capable of producing random bytes that are non-periodic and unpredictable, making them the only kind of generators suitable in many cases. For more information, read our blog post Random Numbers: An Overview.

How do I use a TL200?

The TL200 can be plugged into a computer via USB and send random bytes to the computer continuously using a simple API.

What operating systems are compatible with the TL200?

The TL200 is compatible with multiple versions of Windows, macOS, and Linux. For full information, see Technical Specifications.

What else do I need in order to use a TL200?

Besides a computer with a compatible operating system and USB 2.0 or 3.0 port, absolutely nothing additional is required to use a TL200. The TL200 is a self-contained external devices that uses power from a USB port to power itself and transmit data.

Can multiple TL200 devices be used on the same computer concurrently?

Yes, the supplied TL200 software API and the USB driver do support concurrent use of multiple TL200 devices. In addition, the GetRND utility that is included allows for interacting with multiple TL200 devices simultaneously.

Can a TL200 be used to feed an entropy pool?

On Linux, the TL200 can continuously feed the /dev/random entropy pool using the provided software.

Shipping and Sales

What payment methods does TectroLabs accept?

We accept Visa, MasterCard, American Express, Discover, JCB, Diners Club, PayPal, and Bitcoin payments through Bitpay.

What is the return policy for TectroLabs products?

A TL200 device may be returned within 30 days of purchase for a full refund (buyer will pay for return shipping).

What is the shipping and handling cost?

The shipping and handling cost depends on your destination country and on the quantity of your order and your shipping method. The cheapest option for the U.S., USPS Priority Mail 2-Day shipping, costs $8.

How can I order in bulk?

Please contact us for bulk orders of 10 or more devices. We will be happy to accept you order by email or phone, as our online store does not automatically accept orders of 10 or more devices.