Sangoma PBXact 60 Appliance. In this configuration this system will support up to 60 user extensions. This system comes with the PBXact software installed and 60 user licenses included and support for up to 40 concurrent calls. Specifications of the Appliance are as followed Table Top/1U Rack Mount 2 PCI Express Full Length Slots 3 Onboard GIG Network Ports Single 120GB SSD drive Quad Core Processor 2 GB of Memory 1 Year Hardware Warranty 10.5in D X 12 3/4in W X 2.75in H Box size is 14in L X 16.6in W X 7in H and weighs 20 lbs