Lenovo 4GB USB 2.0 Secure Memory Keys, 4 GB, USB Type-A, 2.0, 0.459 oz (13 g), Black Lenovo 4GB USB 2.0 Secure Memory Keys. Capacity: 4 GB, Device interface: USB Type-A, USB version: 2.0. Weight: 0.459 oz (13 g). Product color: Black