Checks are written against a person's bank account; therefore the person issuing the eCheck will need to have a checking account at their bank of choice. Then, they will need to be sure that eChecks are a service which is provided by their banking institution.
For the player who wants to use this option, they just need to review all those online casinos which offer eChecks for making a deposit. Most players will find that there will be a good selection of casinos online to choose from, as this is undoubtedly a secure deposit method.