| In the main body (at the end of rail Surface) | - Applicable all cubesat- Safe treatment of electric switch | - Mechanical uncertainty ㆍ Friction ㆍ Cold welding- Higher design complexity | All Cubesat |
| In the main body (not end of the rail) | - Safe treatment of electric switch | - Switch implementation dependent to the deployer | ≥3U |
| Out of main body | - Simple design- No mechanical uncertainty | - Switch implementation dependent to the deployer- Need to avoid compressible surface- Careful treatment for electric switch | ≥3U |