BK4010
The BK4010 from Beckhoff supports up to 64 terminals and handles up to 64 digital I/O signals. As part of the BK EtherCAT Bus Couplers series, this coupler operates at 24 V DC with a 10 A max contact current.
It achieves a data rate of 500 kBaud, a cycle time of 1.43 ms for ten modules, and provides 4000 Vrms isolation voltage. The device has an IP20 rating and operates between 0 °C and 55 °C.