wmic – useful commands
wmic nic get name, speed
wmic bios get manufacturer, name, serialnumber
wmic computersystem manufacturer, model, name, totalphysicalmemory
These are typically the commands I use, when PXE-booting into WinPE to get systeminfo. With SCCM 2012 R2 and the boot-image command-prompt-enabled, it’s a good way to quickly get the model-number of the booted computer and/or the speed-info of the NIC.