cPCI Carrier for two PC Card / CardBus Cards sockets with hot insertion and removal, supports up to two memory and I/O cards of type I and II or one card of type III (3.3V and 5V card power supply supported, 3.3V, 5V and 12V card programming voltage supported, Short circuit protection); Status LED's; PCI I/O signaling voltage 3.3V and 5V; Operating temperature -40°C to +85°C