Check the listing for details. ELK M1EZ8MSI M1EZ8 Main Serial Interface. Condition: New. Listed at 71.99 USD. The ELK-M1EZ8MSI Main Serial Port Interface allows direct RS-232 Serial Communications to an M1EZ8 Control for Upload/Download programming, and for interfacing with other Computer type devices. Also required when adding the M1XEP Ethernet Port to an M1EZ8 Control. The speed of this port is software selectable from 300 to 115,200 baud.General InformationName: ELK-M1EZ8MSI SRAL PORT F/M1EZ8Category: Elk Products Inc., Intrusion & Smart Home, Alarm Control Panels & Keypad, Alarm Control Panel AccessoriesUPC Code: 762158550348Country of origin: United States. We Combine Shipping! Please request an invoice before paying if combining with items from our other listings. The United States Postal Service ( USPS ) will no longer run traces on packages shipped by First Class Mail International or Priority Mail International after they leave the United States. True tracking is only available on Express Mail International which is in most cases is more than double the shipping cost. We provide our best efforts to keep shipping & handling costs reasonable for international eBayers. If you choose Economy International Shipping it may be between 5 to 15 business days and in some cases even longer and regretfully not possible to trace. USPS Express Mail International is at a considerably higher cost but is traceable and generally is delivered within 3 to 10 business days.