Template:mpu The CN3120-300 SCP is a 64-bit dual-core MIPS secure communication microprocessor (SCP) designed by Cavium and introduced in 2006. This processor, which incorporates two cnMIPS cores, operates at 300 MHz and dissipates 3 Watts. This processor includes a number of hardware accelerators for network processing and secure communication such as encryption, TCP, and QoS. This MPU supports up to 4 GiB of 64-bit DDR2-667 ECC memory.