The present disclosure allows connection between optical and electrical devices at high frequencies and high bit rate. The present disclosure provides an electro-optical device that includes an optical interface for optical signal transmission and reception; an electrical interface for electrical signal transmission and reception; a data and signal unit located inside an integrated circuit chip coupled to the optical interface and to the electrical interface for manipulating data received through said interfaces; and a processing unit located inside the integrated circuit chip coupled to the optical interface and to the electrical interface for processing digital data received through said interfaces. The present disclosure provides devices that achieve smaller physical dimensions with an increased number of interfaces to allow greater throughput of data into and out of the integrated circuit. This allows increased input/output bandwidth and increased amount of logic can be placed directly into the integrated circuit.