The security key vendor sells the following items:
You must have an authenticator tied to your account to buy items from this vendor. Information on getting an authenticator can be found on the SWTOR website.
Can I purchase a physical Security Key?
The SWTOR Physical Security Key is being retired from sale. As of January 7, 2014, the key fob is no longer available for purchase on Origin.com. Select retailers may still have limited physical Security Keys available, while supplies last. Existing physical Security Keys can still be used to protect your SWTOR account. You will still be able to link/unlink the Security Key from your account as needed. If you lose your physical Security Key, or it breaks, don't worry. You can remove a lost/broken physical key from your account. Then just download the mobile Security Key for free from Apple's iTunes Store and the Google Play store.