| USE Part | No. of Positions |
| ERD108RS | 8 |
| ERD108RM | 8 |
| ERD108RR | 8 |
| ERD108RF | 8 |
| ERD108RD | 8 |
| ERD208RS | 8 |
| ERD208RR | 8 |
| ERD208RF | 8 |
| ERD408RS | 8 |
| ERD408RM | 8 |
| ERD408RR | 8 |
| ERD408RF | 8 |
| ERD408RD | 8 |
| ERD508RS | 8 |
| ERD508RR | 8 |
| ERD508RF | 8 |
| ERD110RS | 8 |
| ERD110RM | 10 |
| ERD110RR | 10 |
| ERD110RF | 10 |
| ERD110RD | 10 |
| ERD210RS | 10 |
| ERD210RR | 10 |
| ERD210RF | 10 |
| ERD410RS | 10 |
| ERD410RM | 10 |
| ERD410RR | 10 |
| ERD410RF | 10 |
| ERD410RD | 10 |
| ERD510RS | 10 |
| ERD510RR | 10 |
| ERD510RF | 10 |
| ERD116RS | 16 |
| ERD116RM | 16 |
| ERD116RR | 16 |
| ERD116RF | 16 |
| ERD116RD | 16 |
| ERD216RS | 16 |
| ERD216RR | 16 |
| ERD216RF | 16 |
| ERD416RS | 16 |
| ERD416RM | 16 |
| ERD416RR | 16 |
| ERD416RF | 16 |
| ERD416RD | 16 |
| ERD516RS | 16 |
| ERD516RF | 16 |
| ERD516RR | 16 |
