Power Supply: 24VDC
 Balance Method: Relay
 Brand: Delta
 Model:  DVP20SX211R
 Number of inputs and type: 12 - Digital (8); Analog (4)
 Number of outputs and type: 8 - Relay (6); Analog (2)
 Expandable: up to 512 I / O points
 Screen type: none
 Communications: USB
 Expandable I / O: yes
 Maximum I / O expansions: 512
 Embedded Ethernet: No