MEMO CX12 Mobile Phone Cooler with Digital Display & Battery Pack, RGB Semiconductor Cooling Fan - Black / Yellow

Keep your smartphone cooler during demanding games, live streaming, video recording, and other intensive mobile workloads with the MEMO CX12 Mobile Phone Cooler – Black / Yellow.

The MEMO CX12 combines TEC semiconductor refrigeration, a high-speed active cooling fan, digital temperature display, RGB lighting, magnetic mounting, and a 2000mAh detachable battery pack. The Black / Yellow color combination is an identified CX12 retail variant, giving the cooler a distinctive gaming-focused appearance.

Unlike a basic fan-only phone cooler, the CX12 uses an electrically cooled semiconductor plate to actively draw heat away from the rear of the smartphone. It can operate from its detachable battery for greater portability or through USB Type-C power for longer gaming sessions.

Key Features

• TEC Semiconductor Cooling – Uses thermoelectric refrigeration for stronger active cooling than conventional fan-only designs.
• Digital Temperature Display – Displays cooling temperature/operating information in real time.
• 2000mAh Detachable Battery Pack – Provides portable cooling without requiring a permanent power cable.
• Dual Power Operation – Run from the battery pack or connect directly through USB Type-C.
• 7-Blade Cooling Fan – Current CX12 battery-pack listings specify a seven-blade vortex fan working together with the TEC module.
• High-Speed Fan – MEMO's manufacturer specification lists approximately 5500 RPM, while some current retail batches list up to 6000 RPM.
• Dynamic Fan Balancing – Designed to reduce unwanted vibration during operation.
• RGB Gaming Lighting – Built-in RGB illumination adds extra style to mobile gaming setups.
• Strong Magnetic Attachment – Full-circle magnetic design allows fast installation on suitable magnetic phones or cases.
• Clip Mounting Support – MEMO also lists clips for wider smartphone compatibility.
• 62–105mm Phone Width Support – Official MEMO specifications list this approximate range when using the clip mounting system.
• USB Type-C Interface – Modern wired power connection for continuous operation.
• 5V / 2A Manufacturer Input Rating – Official MEMO specification for the CX12.
• 10W Manufacturer-Rated Power – MEMO's current manufacturer specification lists 10W.
• Large 3844mm² Heat-Dissipation Area – Helps remove heat transferred from the semiconductor cold plate.
• Black / Yellow Gaming Design – Exact retail listings identify the CX12 in Black Yellow.
• iPhone & Android Compatible – Magnetic and clip options provide broad physical compatibility.
• Ideal for Mobile Gaming – Suitable for PUBG Mobile, Call of Duty Mobile, Genshin Impact, Warzone Mobile, Mobile Legends, and other demanding games.
• Useful for Streaming & Vlogging – Helps manage heat generated by recording, encoding, camera use, and continuous network activity.

Specifications

The official MEMO CX12 manufacturer page confirms Type-C, 5V/2A, 10W, 5500 RPM, a 25 × 25 × 4.9mm semiconductor module, 3844mm² heat-dissipation area, RGB lighting, and 62–105mm phone compatibility. Current Black / Yellow retail listings additionally confirm the digital display and 2000mAh battery configuration.

TEC Semiconductor Ice Cooling

The MEMO CX12 does more than simply blow room-temperature air across your phone.

It uses thermoelectric semiconductor cooling, based on the Peltier effect, to create an actively cooled contact surface.

The cooling process works in stages:

1. The semiconductor cold plate contacts the rear of the smartphone.
2. Heat is transferred away from the phone.
3. The heat moves into the cooler's heatsink.
4. The high-speed fan expels that heat into the surrounding air.

MEMO describes this semiconductor system as actively transferring smartphone heat into the electric cold plate and then dissipating it through the cooling assembly.

Fast Cooling Performance

MEMO publishes cold-plate test figures reaching approximately -7°C to -2°C in a 26°C ambient environment under its specified testing conditions.

These are cooling-plate test temperatures, not the internal temperature of the smartphone processor or battery.

Real-world performance depends on:

• Ambient Temperature
• Phone Model
• CPU / GPU Workload
• Phone Case Thickness
• Cooler Position
• Power Supply
• Contact Quality
• Humidity

Helps Manage Thermal Throttling

Demanding smartphone games can place sustained load on the CPU and GPU.

As internal temperatures increase, smartphones may automatically reduce performance to protect their hardware. This process is known as thermal throttling.

Heat-related effects may include:

• FPS Drops
• Inconsistent Frame Times
• Lower CPU / GPU Performance
• Reduced Screen Brightness
• Slower Charging
• Hotter Surface Temperatures

The CX12 helps move heat away from the phone chassis, potentially helping the device operate in a more favorable thermal environment.

It does not increase the phone's maximum hardware capability; its role is thermal management.

Digital Temperature Display

One of the standout features of the CX12 is its integrated digital display.

Current retail listings describe the display as showing temperature and operational information in real time.

This gives you a quick visual indication of the cooler's activity while gaming.

2000mAh Detachable Battery Pack

The CX12 battery version includes a 2000mAh detachable battery pack, allowing the cooler to operate without a continuous cable running to a charger or power bank.

This is useful for:

• Handheld Gaming
• Mobile Esports
• Travel
• Gaming Events
• Outdoor Streaming
• Vlogging
• Gaming Away from a Desk

Actual runtime depends on the cooling mode, fan speed, ambient conditions, battery condition, and production batch.

Dual Power Operation

The CX12 can be used in two practical configurations.

Battery Mode

Attach the 2000mAh battery module for more portable operation.

USB-C Wired Mode

Connect the cooler directly to an appropriate USB power source for continuous use.

Current CX12 retail information specifically lists 5V/2A Type-C input for wired operation.

AI Cooling Function

Current CX12 battery-pack listings also market an AI cooling mode designed to optimize cooling behavior during direct powered operation.

This can be useful for balancing strong cooling with operating conditions rather than continuously pushing the cold plate toward its lowest possible temperature.

7-Blade Vortex Fan

The semiconductor element needs an efficient way to dispose of heat from its hot side.

The CX12 combines its TEC module with a 7-blade vortex-style fan, according to current retail specifications.

The fan continuously moves air through the heatsink so the semiconductor plate can continue drawing heat from the smartphone.

Approx. 5500 RPM Official Fan Specification

MEMO's manufacturer page rates the CX12 fan at approximately 5500 RPM.

Some newer Black / Yellow retailer listings advertise 6000 RPM, suggesting that fan specification may vary between batches or revisions.

For your final inventory specification, use the value printed on the actual product packaging if it differs.

Dynamically Balanced Fan

MEMO describes the CX12 fan as using dynamic balancing to reduce vibration during rotation.

This is particularly useful during:

• Gaming
• Voice Chat
• Streaming
• Vlogging
• Video Recording

where excessive vibration could otherwise become distracting.

Large 3844mm² Heat-Dissipation Area

The CX12 manufacturer specification lists a heatsink area of approximately 3844mm².

A larger heat-dissipation surface helps remove the heat pumped away from the smartphone by the TEC element.

Strong Magnetic Mounting

MEMO equips the CX12 with a full-circle strong magnetic mounting system.

On compatible phones or magnetic cases, this provides:

• Quick Installation
• Easy Removal
• Fast Repositioning
• No Large Side Clamps
• Cleaner Gaming Setup

For best cooling performance, position the cold plate close to the phone's primary heat-generating area.

Clip-On Support for More Phones

The CX12 is not limited to magnetic smartphones.

MEMO's manufacturer package specification also lists a pair of clips, and the cooler is specified for phones approximately 62–105mm wide with compatible mounting.

This makes it usable with a wide range of Android devices as well as iPhones.

Compatible with iPhone

The magnetic system is particularly convenient with compatible iPhones or magnetic cases.

The CX12 can be useful during demanding games such as:

• PUBG Mobile
• Call of Duty Mobile
• Warzone Mobile
• Genshin Impact
• Mobile Legends
• EA Sports FC Mobile
• Racing Games

Compatible with Android

The magnetic and clip mounting options also allow the CX12 to work with many phones from brands such as:

• Samsung
• Xiaomi
• Redmi
• POCO
• realme
• OPPO
• OnePlus
• HONOR
• Huawei
• ASUS ROG Phone
• REDMAGIC

Physical compatibility depends on phone width, camera placement, rear shape, case thickness, and cooler positioning.

RGB Gaming Lighting

The MEMO CX12 features integrated RGB lighting, confirmed in both the manufacturer specification and Black / Yellow retail listings.

It complements accessories such as:

• Mobile Controllers
• Gaming IEMs
• Gaming Finger Sleeves
• Mobile Triggers
• RGB Gaming Desks
• Streaming Setups

Black / Yellow Gaming Design

This version uses the distinctive Black / Yellow color scheme.

The exact CX12 color is listed as Black Yellow / black-yellow by current retailers.

The contrasting color combination gives the cooler a more aggressive gaming look than a conventional all-black mobile accessory.

USB Type-C Power

The CX12 uses a USB Type-C interface.

MEMO lists the manufacturer's electrical rating as:

5V / 2A – 10W.

Use a suitable power source capable of supplying the required current continuously for stable cooling.

Possible sources include compatible:

• USB Wall Chargers
• Power Banks
• Desktop Chargers
• Powered USB Ports

Great for PUBG Mobile

PUBG Mobile can generate significant heat during:

• High-FPS Modes
• Long Battle Royale Matches
• High Graphics Settings
• Voice Chat
• Screen Recording

The CX12 helps move heat away from the phone during extended gaming.

Great for Call of Duty Mobile

The cooler is also useful for:

• Ranked Multiplayer
• Battle Royale
• High Frame-Rate Modes
• Long Competitive Sessions
• Streaming
• Screen Recording

Great for Genshin Impact

Open-world titles such as Genshin Impact can place a sustained workload on the CPU and GPU.

The CX12 can be useful during:

• High Graphics Settings
• Long Exploration Sessions
• Combat
• High Frame Rates
• Charging While Gaming

Great for Mobile Legends

The CX12 is also suitable for longer MOBA sessions in games such as:

• Mobile Legends
• League of Legends: Wild Rift
• Honor of Kings
• Arena of Valor

Useful for Live Streaming

The CX12 is not limited to gaming.

Live streaming may simultaneously use:

• CPU
• Camera
• Display
• Wi-Fi / Mobile Network
• Video Encoder

which can create substantial heat.

The cooler can therefore be useful for:

• TikTok Live
• YouTube Live
• Facebook Live
• Game Streaming
• Long Video Calls

Great for Vlogging & Recording

Long-duration video recording can also cause smartphones to become warm.

The MEMO CX12 can be useful for stationary recording setups, provided the cooler does not obstruct:

• Camera Lenses
• Microphones
• Tripod Mounts
• Gimbals

Portable Design

Current Black / Yellow battery-version retail listings quote dimensions around 54 × 69.5 × 44mm and weight around 118.6–120g.

This makes it portable enough for:

• Backpacks
• Gaming Bags
• Travel
• Mobile Gaming Events
• Streaming Kits

Perfect For

• iPhone Gaming
• Android Gaming
• PUBG Mobile
• Call of Duty Mobile
• Warzone Mobile
• Genshin Impact
• Mobile Legends
• High-FPS Gaming
• Mobile Esports
• Competitive Gaming
• Gaming Phones
• Live Streaming
• Vlogging
• Video Recording
• Screen Recording
• Mobile Emulation
• RGB Gaming Setups
• Long Gaming Sessions

Why Choose the MEMO CX12 - Black / Yellow?

• Genuine MEMO CX12 model.
• Stylish Black / Yellow gaming finish.
• TEC semiconductor refrigeration.
• Active cold-plate cooling.
• 7-blade fan on current battery-pack version.
• Approx. 5500 RPM official fan rating.
• Digital temperature display.
• 2000mAh detachable battery pack.
• Battery and wired power modes.
• USB Type-C connection.
• 5V/2A manufacturer input.
• 10W manufacturer-rated power.
• Strong magnetic mounting.
• Clip-on support.
• Approx. 62–105mm compatible phone width with clips.
• RGB gaming lighting.
• Dynamically balanced fan.
• Approx. 3844mm² heat-dissipation area.
• No Bluetooth pairing required.
• No mobile application required.
• Suitable for iPhone.
• Suitable for Android.
• Excellent for PUBG Mobile.
• Excellent for Call of Duty Mobile.
• Useful for high-load games.
• Useful for streaming.
• Useful for vlogging.
• Portable battery operation.
• Brand: MEMO.
• Model: CX12.

Package Contents

Typical MEMO CX12 battery-version packaging includes:

• 1 × MEMO CX12 Mobile Phone Cooler – Black / Yellow
• 1 × 2000mAh Battery Pack
• 1 × USB Type-C Power Cable
• 1 × Pair of Phone Clips
• 1 × User Manual
• Retail Packaging

Important

Cooling Temperature: The sub-zero temperatures advertised for semiconductor cooling refer to the cooling plate under controlled testing conditions, not the smartphone's internal CPU or battery temperature. MEMO publishes a cold-plate test figure of approximately -7°C to -2°C at 26°C ambient temperature.

Condensation Warning: Semiconductor coolers can make the cold plate cooler than the surrounding air's dew point. In humid environments, condensation or frost may form. Do not allow moisture to enter the smartphone's ports, cameras, or cooler electronics.

Phone Cases: Thick or thermally insulating cases can reduce cooling performance. Direct phone contact or a thin thermally suitable case generally provides better heat transfer.

Battery: The 2000mAh battery pack powers the cooler; it should not be marketed as a power bank for charging the smartphone unless your exact package explicitly supports that function.

Power Specification: MEMO's manufacturer page specifies 5V/2A and 10W, while some third-party CX12 AI versions list different electrical ratings or higher power. For this listing, the official manufacturer value is prioritized.

Fan Specification: MEMO lists 5500 RPM, while some current Black / Yellow retail batches list 6000 RPM. The rating printed on your physical stock should take priority if different.

Wireless Charging: The MEMO CX12 is a smartphone cooling accessory, not a wireless charger.