Advantech PCI-1760U-BEProduct Attribute Attribute Value Series PCI Series Overview PCI 1760U relay actuator and isolated digital input card is a PC add on card for the PCI bus. It meets the PCI standard Rev. 2. 2 (Universal PCI expansion card), and works with both 3. 3 V and 5 V PCI slots. It provides 8 opto isolated digital inputs with isolation protection of 2,500 VDC for collecting digital inputs in noisy environments, 8 relay actuators that can be used as a on off