OMNI 3750 DUAL COM MODULE (14.4 & 10BT)-Merchant supplies-credit card processing supplies-This Omni 3750 dual com module or other wise known as a "dual com mod" by most all payment professionals in the industry. Enables your Omni to convert to internet in a mater of seconds- Just plug and play. Very nice for most applications.-Merchant supplies has all your credit card processing supplies.