The PMC-ATM OC-3 NIC is a high performance ATM network interface ideally suited for replacing aging technology products as well as providing a migration path to more contemporary interfaces such as Gigabit Ethernet. The board supports CBR and UBR service classes. VBR and ABR are available upon request. It has been validated with TCP/IP protocols such as Classical-IP (CLIP) and ATM Forum LANE. The product is available in an extended temperature conduction cooled version as well as commercial temperature convection cooled.