| Abbreviation | Definition |
|---|---|
| RKM | Rack-mount Keyboard and Monitor |
| RLDRAM | Reduced Latency Dynamic Random Access Memory |
| RLSD | Received Line Signal Detector |
| RMA | Returned Merchandise Authorization |
| RMM | Rack Mount Modem |
| RMP | Reprogrammable Micro Processor |
| RMTD | Rack Mounted Tape Drive |
| ROC | Receiver Operating Characteristic |
| ROMIC | Read Only Memory Integrated Circuit |
| ROPA | Remote Optically Pumped Ampifier |
| ROT13 | ROTate 13 encoding |
| RPCI | Reconfigurable PCI-BUS Interface |
| RPI | Request Progression Interface |
| RPMB | Replay Protected Memory Block |
| RPPS | Rate Proportional Processor Sharing |
| RPS | Rack Protection System |
| RPS | Rear Projection System |
| RPS | Remote Power Supply |
| RPSMA | Reverse Polarity SubMiniature version A |
| RPSS | Redundant Power Supply System |