One type of solution available for two factor authentication is using a RSA token. This type of two factor authentication uses a removable device, like a USB jump drive. Your second form of authentication is contained on the USB drive. Whenever access to resources is required, the user must insert the USB token, into an available USB slot. After the token has been inserts, they can launch the application, enter their user name and password, and select the location of the second form of authentication.
Another Type of RSA Token Device Is a Smart Card
Another type of RSA token device you can use is called a smart card. A smart card uses a magnetic strip or embedded chip on a plastic card. You can even combine a smart card with your employee ID cards. While smart cards are less likely to get lost, when embedded into employee ID badges, you will need a smart card reader at each of your work stations.