What is ckb checking?

Trying to set up direct deposit online for my new job, they are asking if my checking account is a CKA, CKB, CKC orCKD. If you need a simple checking account without having to pay for the extra features that you never use, Basic Checking is just right for you. What Is Online Bill Pay? 'Text on check, close-up'. These deposit accounts give consumers a place to deposit their money, make transfers, write checks, pay bills, and do other routine banking transactions. Not All Checking Accounts Are Equal, Learn More.