- X103 Expansion board, 7DI, 30V
- X105 Expansion board, 8DI, 8DO with 30V/TTL
- X101 Expansion board, 8DO, TTL
- X102 Expansion board, 2 Relays
- X104 Expansion board, 8DIO, TTL
- X106 Expansion board, 3DI or 2DO, 30V
- X109 Expansion board, 7 PhotoMos Relays
- X119 Expansion board, 7DI, 7DO, 30V
- X116 Expansion board, 4DI isolated, 6 Relays
- X110 CR Expansion board, 14DI, 30V
- X107 CR Expansion board, 6DI, 7DO, 30V
- X100 Expansion board, 8DI, 30V