OPTO 22 SNAP-B16M 16 Slot Module Rack - USED

Opto 22 PB16H 16-Channel Power Module Rack - USED

MetraByte Corp DAS-16, STA-16 Terminal Accessory Board with OPTO 22 PB4 Relay

OPTO 22 PB4AH G14-Channel Analog Mounting Rack - USED

BECKHOFF EL1889 Digital Input Module 16-channel 24 V DC New✦KD

ABE7-H16R31 Telemecanique ABE 7 Interface Module, 16 Channel Input/Output - USED

Opto 22 G4PB32DEC Module Rack; 50-Pin; Fuse; Rack Mount USED, W/7 Sets I/O Relay