Refer to the Application Server, it's a dedicated device for ease of installation and maintenance.
Appliance type of hardware has dedicated OS and software which you can simplify, configuration and operation because it consists of a plug-in to an existing network.
MONITORAPP’s entire application security products consist of the type of Appliance Server and each hardware specifications are as follows.

AI-100
Single Power Supply
UTP 10/100/1000 x 4

AI-200
Single Power Supply
UTP 10/100/1000 x 6
UTP 10/100/1000 x 2 x 1 or Fiber 1G x 2 x 1 *

AI-500
Redundant Power Supply
UTP 10/100/1000 x 6
UTP 10/100/1000 x 2 x 2 or Fiber 1G x 2 x 2*

AI-1000
Redundant Power Supply
UTP 10/100/1000 x 2 and UTP 10/100/1000 x 4 x 2 or Fiber 1G x 4 x 2 or 10G x 2 x 2*

AI-2000
Redundant Power Supply
UTP 10/100/1000 x 2 Fiber 10G x 2 Fiber 10G x 2 x 3 or
UTP 10/100/1000 x 4 x 3 or Fiber 1G x 4 x 3*

AI-4000
Redundant Power Supply
UTP 10/100/1000 x 2 Fiber 10G x 2 Fiber 10G x 2 x 3 or
UTP 10/100/1000 x 4 x 3 or Fiber 1G x 4 x 3*