The FIDO Security Key TrustKey T110 is a sleek and compact USB key designed for two-factor authentication. Made by Trustkey and produced in Korea, this black key is lightweight at only 0.05 pounds. Its dimensions of 4.76x2.99x0.31 inches make it easy to carry and use on laptops or desktop computers. With its trustKey brand and FIDO2 U2F technology, this authentication key provides an extra layer of security to protect your devices and sensitive information.