Cisco UCS E-Series Network Compute Engines The Cisco UCS E-Series NCEs are computing modules that are both price and power optimized. They come in three form factors: a single-wide service module (SM), a double-wide enhanced high-speed WAN interface card (EHWIC) for the ISR G2 platform, and a network interface module (NIM) form factor for the 4000 Series ISR platform. The service module fits into the ISR G2 and 4000 Series ISR networking platforms. It delivers a high-performance, power-efficient Intel Pentium processor B925C (4-MB cache and 2.00 GHz) product family with two cores in combination with integrated remote lights-out management. The double-wide EHWIC fits in the ISR G2 networking platform only. It runs the Intel Atom processor C2358 (1-MB cache and 1.70 GHz) and is available in multiple versions with a variety of DRAM and hard-disk capacities. The NIM fits in the 4000 Series ISR only. It runs the Intel Atom processor C2518 (1-MB cache and 1.70 GHz) and is available in multiple versions with a variety of DRAM and hard-disk capacities. The zero-footprint form factor of the NCEs make them excellent for hosting Cisco network applications and other lightweight applications in your branch offices.