REDMAGIC Cooler 8 Pro Teardown: 1640mm² TEC Cooling Inside

REDMAGIC has recently launched a brand-new generation of magnetic cooler—the REDMAGIC Cooler 8 Pro. While continuing the convenient magnetic design of the previous generation, it further strengthens the core cooling performance, striving to bring users a more extreme cooling experience.

The REDMAGIC Cooler 8 Pro features a built-in 1640mm2 ultra-large TEC cooling engine, integrating 124 pairs of PN junctions, achieving a 130% improvement in cooling performance. Paired with an aviation aluminum heatsink designed with a 3D through-type airflow structure, the heat conduction efficiency is further enhanced. Combined with a self-developed 11-blade high-pressure fan, it can achieve ultra-high air pressure at a speed of 6500 RPM, quickly dissipating heat.

In terms of body details, it adopts a top and bottom air outlet design, preventing hot air from blowing onto hands, providing a more refreshing and comfortable grip experience. In addition, it continues practical features such as magnetic buckle, magnetic sheet, RGB lighting ring, and APP intelligent temperature control adjustment, meeting users' diverse needs in gaming, live streaming, and other scenarios. Next, let’s take a detailed look at this newly upgraded REDMAGIC Cooler 8 Pro.

REDMAGIC Magnetic Cooler 8 Pro Unboxing

The packaging box continues the deuterium silver tone design, with the REDMAGIC brand and logo printed on the front, as well as the product name in both Chinese and English.

The back is printed with the product name, parameters, and manufacturer information.

The package includes the REDMAGIC Cooler 8 Pro, data cable, magnetic sheet, cartoon stickers, and user guide.

Close-up of the magnetic sheet, specially designed for non-magnetic phones, which is quite considerate.

The included cable is a USB-C to USB-C data cable, continuing the design specifications of the series.

The measured cable length is approximately 100cm.

Using ChargerLAB POWER-Z KM003C, it is measured that the cable’s E-Marker chip comes from Injoinic (19.800, 0.36, 1.85%), with a power transmission capability of 50V5A and data transmission capability of USB 2.0.

The REDMAGIC Cooler 8 Pro initially has a protective film and information sticker attached to the bottom.

The product model is PA1256, manufactured by Nubia Technology Co., Ltd., and has passed CE certification.

Based on the previous generation design language, the REDMAGIC Cooler 8 Pro adopts a new black color scheme and upgrades with a Kevlar texture, making it look cooler and more hardcore.

The top center features a combination design of the REDMAGIC brand logo, mesh holes, and RGB lighting ring.

The product has a built-in self-developed 11-blade high-pressure fan, capable of achieving ultra-high air pressure at 6500 RPM to quickly dissipate heat.

One side of the body is printed with COOLER and DESIGED BY REDMAGIC.

The other side is printed with WIN MORE GAMES.

Both ends of the body are equipped with air outlets. The through-type upper and lower airflow design ensures that hot air does not blow onto hands, providing a refreshing and comfortable grip. In addition, one end of the body is equipped with a power switch.

The other end is equipped with a USB-C interface.

The cooling surface is equipped with thermal conductive silicone, which enhances heat conduction while fitting tightly to the phone without damaging it.

The measured length of the REDMAGIC Cooler 8 Pro is 71mm.

The width is 63.51mm.

The thickness is 29.91mm.

Compared with the REDMAGIC Cooler 6 Pro, this one is slightly larger overall.

The intuitive size feeling when holding the cooler in hand.

In addition, the measured weight of the REDMAGIC Cooler 8 Pro is about 116g.

In terms of magnetic force, the REDMAGIC Cooler 8 Pro can easily attach to an Apple iPhone 17 Pro and remain suspended without falling.

For non-magnetic models like REDMAGIC 11 Pro, the REDMAGIC Cooler 8 Pro can be used with a magnetic sheet, and it can also easily attach to the phone.

Additionally, using KM003C, it is measured that the operating power of the REDMAGIC Cooler 8 Pro during cooling reaches 30.98W.

When connected to the APP, users can flexibly customize intelligent temperature control, cooling switch, God Mode, lighting effects, etc., according to their usage habits, further improving user experience.

REDMAGIC Magnetic Cooler 8 Pro Disassembly

After removing the thermal silicone pad, there is a layer of heat dissipation copper sheet inside.

Continue removing the copper sheet, and thermal grease is applied to the central cooling chip area.

Small magnets are embedded in the bottom plastic frame, with fixing screws on the edges.

Remove the screws and take off the plastic frame.

At the bottom is a heatsink, with buffer protection pads on both sides, and the cooling chip fixed in the center.

On the other side of the heatsink, the cooling fan is fixed in the center area.

The fan and cooling chip are connected to the PCB board by wire soldering.

Separate the heatsink module from the PCB board and take it out.

The PCB board is fixed with screws, and the back is attached with Mylar sheet, conductive cloth, and conductive foam.

Continue removing the screws to take out the PCB board. There is also a light guide ring inside the top of the shell.

On the front of the PCB board, there are PD power chip, Bluetooth SOC chip, half-bridge chip, synchronous buck converter, inductors, and other components. There are a total of 16 addressable RGB LEDs.

On the other side, a USB-C female connector and power switch are soldered.

Close-up of the USB-C input interface, with conductive cloth attached to the shell.

Power switch SMD soldering.

Close-up of the Bluetooth SOC chip, marked EP2T42.

Close-up of the 24.000MHz crystal oscillator.

The PD power chip comes from Hynetek, model HUSB238, which is a highly integrated USB PD sink chip (also called PD trigger chip), with a rated transmission power of up to 100W. It is compatible with PD3.0 V1.3 and Type-C V1.4. It also supports BC1.2 DCP, CDP, SDP, and Apple 5V2.4A charging protocols. It can use a general PD adapter instead of a traditional DC power supply.

HUSB238 has obtained USB-IF certification, TID3666. It can be used in electronic devices with traditional barrel connectors or USB micro-B power connectors, such as IoT devices, wireless chargers, drones, smart speakers, power tools, and other devices.

Hynetek HUSB238 information.

The TVS diode marked 15P is used for overvoltage protection.

The half-bridge chip used for bucking power to the cooling chip comes from Natlinear, model LN8364. It is a half-bridge MOS driver chip in a PDFN5*6-8L package.

Close-up of the 6.8μH alloy inductor.

The synchronous buck converter used to power the fan comes from RYCHIP, marked CC, actual model RY9120. It is a high-frequency, synchronous rectification, buck switching converter with built-in power MOSFET. It achieves 2A continuous output current over a wide input voltage range with excellent load and line regulation performance.

Its ECOT control mode provides extremely fast transient response, simplifies loop design, and ensures precise output voltage regulation. The RY9120 requires only a small number of common external components and uses a space-saving SOT23-6 package.

Close-up of the matching 4.7μH buck inductor.

Close-up of the addressable RGB LED.

The heatsink inside the REDMAGIC Cooler 8 Pro is made of aviation aluminum material commonly used in aerospace and high-performance fields, quickly guiding core heat into the airflow channel, achieving better heat conduction.

The heatsink also continues the 3D through-type design of the previous generation for better heat dissipation.

The fan is fixed in the center area of the heatsink with screws.

On the other side, a 1640mm2 ultra-large TEC cooling engine is fixed, integrating 124 pairs of “micro cooling pumps” (PN junctions), with quantity and density far exceeding the previous generation, improving cooling performance by 130%.

After removing the cooling chip, thermal grease is also applied between it and the heatsink.

The measured length of the cooling chip is 40.6mm.

The width is 40.14mm.

The thickness is 4.65mm.

After disassembling the cooling chip, the internal PN junction quantity and density far exceed the previous generation.

A full disassembly overview.

Disassembly Summary

Finally, the core component list of the REDMAGIC Magnetic Cooler 8 Pro is attached for reference.

The REDMAGIC Cooler 8 Pro adopts a new black Kevlar texture design, offering a stronger sense of technology and hardcore style. The core cooling system is equipped with a 1640mm2 ultra-large TEC cooling chip, improving cooling performance by 130%. Combined with an aviation aluminum heatsink and a self-developed 11-blade high-pressure fan, it achieves higher heat conduction efficiency and faster heat dissipation.

Compared with the 6 Pro, the 8 Pro removes the wireless charging module power interface, returning to a pure cooling positioning and focusing on providing stronger cooling performance for phones. However, it retains practical functions such as magnetic buckle, magnetic sheet, RGB lighting ring, and APP intelligent temperature control, allowing users to flexibly adjust lighting effects and cooling modes according to scenarios, meeting diverse needs such as gaming and live streaming.

Through disassembly, it is found that the product uses the Hynetek HUSB238 PD power chip, combined with a highly integrated Bluetooth SOC solution. The main control circuit uses the RYCHIP RY9120 buck solution to power the fan, while the cooling chip is powered by the Natlinear LN8364 half-bridge chip.

The internal structure of the product is compact. Thermal grease is applied on both the cooling chip and heatsink. The PCB board is coated with conformal coating and covered with Mylar sheets on both sides for protection, demonstrating meticulous workmanship.