| PCI | Peripheral Component Interconnect | |
| PDO | Physical Device Object | |
| PE | Portable Executable EXE file format | |
| PHD | PHD Computer Consultants Ltd | |
| pid | USB Packet ID | |
| pipe | | A flow of data from a USB endpoint |
| PnP | Plug and Play | |
PRE | | USB packet ID which high speed devices see for low speed communications |
| preparsed data | | A HID Report Descriptor parsed into a format that is easy to use |
| rebase | | Tool to strip out debug symbols from a driver executable |
| regedit | | Registry editor |
| rededt32 | | Registry editor for NT and W2000 only |
| SCI | System Control Interrupt | ACPI interrupt |
| SDK | Software Development Kit | |
SETUP | USB Setup packet | |
| SFD | SCSI Filter Driver | |
| SNMP | Simple Network Management Protocol | |
SOF | USB Start Of Frame packet | |
| SoftICE | | Source level debugger from NuMega |
| SRB | SCSI Request Block | Is translated into a CDB |
