Performance comparison
Parameter | IS420UCSBH3A | IS420UCSBH1A | IS420UCSBH4A |
Processor | 1200MHz Intel EP8057 | 600MHz Intel EP80579 | 1066MHz Intel EP80579 |
Memory | 4GB DDR3 | 256MB DDR2 | 2GB Flash |
Cooling | Dual redundant fans | Fanless | Fanless |
I/O Support | 128 DI/64 AIO | Basic IONet only | Enhanced IONet |


GE IS420UCSBH3A Key features
1200 MHz Intel EP8057 processor with 4GB DDR3-1333 SDRAM
6x Ethernet ports with Modbus TCP/IP and EtherCAT protocol support
Fanless design for -40°C to +85°C operation
Built-in battery backup (18-36V DC input)
Seamless GE Mark VIe system integration