| Abbreviation | Definition |
|---|---|
| RAMM | Remote Access Memory Module |
| RAMP | Reliability-Aware MicroProcessor |
| RAPID | Read Ahead for Parallel Independent Disks |
| RAS | Row Access Strobe |
| RAS | Row Address Select |
| RAT | Recreated Analog Technologies |
| RAT | Robust Audio Tools |
| RB | ROM (Read-Only Memory) Boot |
| RBB | Receiver Breakout Board |
| RBBB | Really Bare Bones Board |
| RBI | Ripple Blanking Input |
| RC | Reserve Capacity |
| RC | Resistor-Capacitor |
| RCCB | Residual Current Circuit Breaker |
| RCD | RAS to CAS Delay time |
| RCD | Residual Current Device |
| RCM | Reliability-Centered Maintenance |
| RCOP | Runaway Conductor Overcurrent Protection |
| RCP | Remote Command Processor |
| RCVE | Resource Coordinator VE |