Trilogy Mercury Interface 32 Ports Unit Mainframe System 700-25-01 inc. Software Condition: Good used and working condition, Running Windows XP Professional OEM. Installed Trilogy software. Please refer to images* Includes: x1 Trilogy Mercury Interface 32 Ports Unit Mainframe System 700-25-01 x1 Power Supply Cable Key Specifications Manufacturer: Trilogy Model: Mercury Interface Part Number: 700-25-01 Item Type: Mainframe / Intercom Interface System System Configuration: 32 port interface Function: Intercom talkback routing & distribution Kindly ask your questions without hesitation on eBay messaging system. We are here to help.