Interfaces
SS10 :

(2) Standard Serial Ports – DB9 / (1) Addtional Serial Port option
(2) USB Host ports ver 2.0
(1) PS/2 Keyboard & Mouse Port
(1) Audio 3.5mm stereo jack / (1) Microphone In
(1) Soft shutdown On / Off Switch
(1) Locking Power Input
(1) 4 x Digital Input / 4 x Digital Output
SS12 :

(3) Standard Serial Ports – DB9
(2) USB Host ports ver 2.0
(1) PS/2 Keyboard & Mouse Port
(1) Audio 3.5mm stereo jack / (1) Microphone In
(1) Soft shutdown On / Off Switch
(1) Locking Power Input
(1) 4 x Digital Input / 4 x Digital Output
SS15 :

(3) Standard Serial Ports – DB9
(2) USB Host ports ver 2.0
(1) PS/2 Keyboard & Mouse Port
(1) Audio 3.5mm stereo jack / (1) Microphone In
(1) Soft shutdown On / Off Switch
(1) Locking Power Input
(1) 4 x Digital Input / 4 x Digital Output