I purchased these for a build. They were used just for the build and setup, then I decided to change the fans for a different look for the build. So, the fans have hardly been used at all. I purchased them as four 3-packs.

There are six reverse blade and six standard blade fans. Included are 12 connector cables, one for each fan and 12 sets of screws (four fan screws and four radiator screws each).

They magnetically attach to each other so you can use one fan cable for each block of fans. You can also use a fan individually if you need to using one of the connectors for that fan. The connectors magnetically attach to the fan and terminate in standard fan and ARGB connections.

Reverse fan: (Thermaltake site) CT120 EX Reverse ARGB Sync White is a new model of the CT series incorporating the new MagForce 2.0 for a better, quicker magnetic connection among fans. This fan maintains its 2000 RPM fan speed and has broken through its series limit to provide even better cooling performance. The reversed fan blades ensure that the RGB lighting is fully visible from different airflow directions, and its 9 addressable LEDs can be controlled through motherboard sync software.

Standard fan: (Thermaltake site) CT120 EX ARGB Sync White is a new model of the CT series incorporating the new MagForce 2.0 for a better, quicker magnetic connection among fans. This fan maintains the 2000 RPM fan speed and has broken through its series limit to provide even better cooling performance. Users can control its 9 addressable LEDs through motherboard sync software for spectacular lighting effects.