User Manual Parvus DuraCOR 311 User Manual Download Resource Login to download this resource Username Enter your Curtiss-Wright Defense Solutions username. Password Enter the password that accompanies your username. Forgot password? Don’t have an account? Register here. The Parvus DuraCOR 311 is an ultra-small form factor (USFF) rugged embedded computer/controller based on a low-power, quad-core Intel Atom E3845 (Bay Trail-I) processor equipped with a rugged Flash disk and PCIe-Mini Card I/O expansion slots.