XR2410 24-Channel 10A SPDT Expansion Relay Board 24 - Amp SPDT Relay(s) Expansion Interface Expansion Series $364.00 Full Description> XR241DPDT 24-Channel 1A DPDT Expansion Relay Board 24 - Amp DPDT Relay(s) Expansion Interface Expansion Series $343.00 Full Description> XR243DPDT 24-Channel 3A DPDT Expansion Relay Board 24 - Amp DPDT Relay(s) Expansion Interface Expansion Series $403.00 Full Description> XR245 24-Channel 5A SPDT Expansion Relay Board 24 - Amp SPDT Relay(s) Expansion Interface Expansion Series $304.00 Full Description> XR245DPDT 24-Channel 5A DPDT Expansion Relay Board 24 - Amp DPDT Relay(s) Expansion Interface Expansion Series $463.00 Full Description>