Ruth's sister
Ruth's sister Semiconductor Phone Cooler Type-C 9000rpm 66-87mm 15.5cm
Semiconductor phone cooler with a 9000 rpm fan, Type-C power, and an adjustable 66-87 mm grip for 4-6.7 inch devices
- Semiconductor cooling reduces phone temperature to extend battery life
- 9000rpm fan instantly removes heat during intensive use
- Adjustable 66-87mm grip fits 4-6.7 inch phones securely
- Type-C 5V input powers cooler for gaming and live streaming
- Compact 15.5cm aluminium and ABS design enables portable cooling
What this product is and who it's for
The Ruth's sister Phone Cooler uses semiconductor cooling technology to lower phone temperature during intensive tasks such as gaming, live broadcasting, video playback or charging. It fits phones from 4 to 6.7 inches with a thickness of 5.5 to 10.8 mm, and the retractable grip spans 66 to 87 mm. The device draws about 5 W from a 5 V Type-C input and measures 15.5 cm by 8 cm by 3 cm. It is built for users who need sustained performance without thermal throttling.
Thermals, noise and power draw
A high-speed fan rated at about 9000 rpm moves heat away from the semiconductor cold plate, while the supplier describes the unit as low noise in normal operation. Power consumption is approximately 5 W at 5 V, supplied through the Type-C port, so it can run from a standard phone charger or power bank. The aluminium and ABS resin construction helps dissipate heat without adding bulk.
What this replaces and when the jump is worth it
This cooler replaces passive heat dissipation or basic clip-on fans that rely only on airflow. The semiconductor element actively pumps heat from the phone body, making the upgrade worthwhile when extended sessions cause throttling, battery drain or discomfort from a hot chassis. It is not suited for phones thicker than 10.8 mm with a case fitted, or for devices outside the 4 to 6.7 inch screen range.
Highlights
- Semiconductor cooling reduces phone temperature to extend battery life
- 9000rpm fan instantly removes heat during intensive use
- Adjustable 66-87mm grip fits 4-6.7 inch phones securely
- Type-C 5V input powers cooler for gaming and live streaming
- Compact 15.5cm aluminium and ABS design enables portable cooling
Specifications
No published specifications for this item yet.
Questions about this item
How do I attach the cooler to my phone using the 66-87mm stretch?
Extend the arms until the inner distance matches your phone width between 66 and 87 millimetres, centre the cooling plate on the back, then tighten the grip; remove thick cases first because the 5.5-10.8mm thickness limit assumes no case.
What part will need cleaning or replacement after months of daily use?
The 9000rpm fan intake will collect dust and pet hair; blow it out with compressed air every few weeks and replace the fan if bearing noise appears, as the semiconductor module itself has no user-serviceable parts.
What thermal limit appears first during a long streaming session?
The 5V 5W input caps total heat removal, so after several minutes the aluminium cold plate saturates and the fan can only maintain temperature rather than drop it further.
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